GOST 12.1 014 84 Indicator tubes. Method for measuring the concentrations of harmful substances by indicator tubes

State Standard of the SSR Union

Labor safety standards

Air working area

Method of measuring concentrations of harmful substances
Indicator tubes

GOST 12.1.014-84

MOSCOW

Approved and put into effect by the Resolution of the USSR State Committee on Standards of December 14, 1984 No. 4362

Instead of GOST 12.1.014-79

Restriction of the term is removed by decision of the Interstate Council on Standardization, Metrology and Certification (Protocol No. 5-94)

Reprint (January 1996) with change No. 1, approved in March 1990 (IUS 7-90)

This standard establishes an accelerated method for measuring the concentrations of harmful substances in the air of the working area with indicator tubes, in addition to air underground mining.

The essence of the method consists in changing the color of the indicator powder as a result of a reaction with a harmful substance (gas or ferry) in the air analyzed, separated through the tube. Measurement of the concentration of harmful substance is performed by the length of the changed initial color of the indicator powder layer in the tube (linear-color indicator tube) or in its intensity (colorimetric indicator tube).

The terms applied in the standard and their explanations are shown in the application.

The characteristics of the displayed indicator powders are shown in the application.

Normated metrological characteristics of indicator tubes and air intake devices are shown in the application.

State Standard of the SSR Union

Labor safety standards

Air working area

Method of measuring concentrations of harmful substances

indicativetubes

Occupational Safety Standards System.
AIR OF THE Work Zone. Method of Measuring Unhealthy Matters
Concentration Using Indicator Tubes

GOST
12.1.014-84

Inspend
GOST 12.1.014-79

Date of introduction 1986-01-01

1. Equipment

1.1. Indicator tubes, including equipped with a consumer with special sets with indicator powders.

1.2. Filtering tubes, including equipped with a consumer with special sets.

1.3. Air intake device (type of pump, bellows and others), intended for use with this indicator tube.

2. Preparation for measurement

2.1. The preparation of equipment for measuring the concentrations of harmful substances in the air of the working area is carried out in accordance with the regulatory documentation for indicator and filter tubes and the air intake device intended for them.

2.2. In unexplored production conditions, before measuring, indicator tubes need to be made a one-time high-quality assessment of the composition of the working area using certified techniques or guidelines approved by the USSR Ministry of Health. Based on the data obtained, it is possible to use indicator tubes for planned or operational control. Regardless of the composition of the working area, the use of filtering tubes with indicator, if it is provided in the regulatory documentation for indicator tubes, is mandatory in order to avoid violation of the operating conditions of the indicator tubes.

Re-high-quality assessment of the composition of the working area should be carried out with each change in the production technology that can cause new harmful substances in the air.

2.1, 2.2 (Modified edition, change No. 1).

3. Measurement

barometric pressure - from 90 to 104 kPa (680-780 mm Hg);

relative humidity - 30 - 80%;

temperature - from 288 to 303 K.

A deviation from the specified parameters is allowed if it is provided in the regulatory and technical documentation for the measurement tools.

The control of the metrological parameters of the air of the working area should be carried out in parallel with the measurements of the concentrations of harmful substances by indicator tubes.

3.2. An indicator tube intended for measuring the concentration of harmful substance, and filtering tubes, if provided for by regulatory documentation, are connected to the air intakening device.

Measurement should be started no later than 1 min after depressurization of the tubes.

3.1, 3.2 (Modified edition, change No. 1).

3.3. The amount of air separated through the indicator tubes is set in accordance with the regulatory documentation for these tubes.

Concentration ( FROM n) under normal conditions in mg / m 3 calculated by the formula

where is the result of measuring the concentration of harmful substance, at ambient temperature, t. ° С, relative humidity φ% and atmospheric pressure r kPa, mg / m 3;

K. IN - The coefficient that takes into account the effect of the temperature and humidity of the ambient air on the indication of the indicator tubes, the value of which is determined in accordance with n. Applications.

The relative measurement error (Δ) should not exceed ± 35% in the range of up to 2.0 maximum permissible concentrations (MPC) inclusive and ± 25% at concentrations above 2.0 MPC under the conditions specified in clause.

The measurement result is represented as: ( FROM H ± δ) mg / m 3 with trust probability 0.95.

The magnitude of the absolute errorD. Calculate by formula

In the range of up to 1.0 PDC, an increase in error is allowed to increase to ± 60%. This value of the relative error must be indicated in the regulatory and technical documentation for measuring instruments.

(Modified edition, change No. 1).

4. Safety requirements

4.1. When measuring the concentrations of harmful substances, the indicator tubes in the air of the working area should comply with the norms and rules of safety operating in this production.

4.2. Measuring concentrations of harmful substances Indicator tubes are carried out by persons who have trained and allowed to work on the control of harmful substances in the air of the working area.

4.3. When opening the tubes, it is necessary to observe all precautions when working with glass, applying special devices and means of protection.

ATTACHMENT 1
Reference

Terms applied in the standard and their explanations

Explanation

Work zone

Method for measuring the concentration of harmful substances

According to GOST 16263-70

Harmful substance

Maximum permissible concentrations of harmful substances in the air of the working area

Indicator tube

Primary measuring transducer, structurally representing a glass tube filled with a grain filler (indicator powder)

Linear Colorist Indicator Tube

Indicator tube that allows you to measure the concentration of harmful substance in the analyzed air, separated through the tube, along the length of the initial color of the layer of the indicator powder in the tube

Colorimetric indicator tube

Indicator tube allowing to judge the presence of a harmful substance in the analyzed air separated through the tube, at a concentration, greater trigger concentration for this indicator tube in the intensity of the color powder intensity by comparing with the control sample of the indication effect

Filtering tube

Glass tube filled with one or more absorbers serving to capture gases, vapors that interfere with the measurement of harmful substances

Indicator powder

Hemosorbent grain, changing color when passing through it directly determined by a harmful substance or its volatile interaction products with hemosorbent in the filter tube

Absorber

Grain Sorbent or Hemosorbent, fully transmitting a determined harmful substance and capturing concomitant substances that interfere with the analysis

Range of indications

The area of \u200b\u200bthe values \u200b\u200bof the indicator tube, limited by the final and initial values \u200b\u200bof the scale

Nizhny (top) limit

The smallest (most) meaning of the measured concentrations

Air intake unit

Device for amusement air through indicator tubes

(Modified edition, change No. 1).

ATTACHMENT 2
Reference

Characteristics of manufactured indicator powders for equipment of indicator tubes

Defined gas (pairs)

Losen air volume, cm 3

Measurement range, mg / m 3

Total air inlets, with

Gas (pairs) captured by filtering cartridge

Gas (pairs) interferes with the definition

Nitrogen oxides

Halogens (chlorine, bromine, iodine), ozone in concentrations above 10 MPC

Pairs acids, alkalis and amines

Sulvous anhydride

Hydrogen sulfide, ammonia, nitrogen dioxide, sulfuric acid fog, water pairs

Acetylene

Hydrogen sulfoporic hydrogen, silicon hydrogen, ammonia, acetone and water pairs

Anhydride sulfur, pair of acetic acid, acetic anhydride, hydrochloric acid, in concentrations up to 10 MPC

Caps of ketones and esters, acetic acid pair, acetic anhydride, hydrochloric acid and anhydride sulfur in concentrations above 10 MPC

Hydrocarbons aromatic and unforeseen, water pairs

400´ 3

360´ 3

Couple of water

Couple of water

Pair of hydrocarbons of fatty and aromatic rows

Hydrogen sulfide

Mercptany

Couple of water

Pair of hydrocarbons of fatty and aromatic rows

Petroleum hydrocarbons

Independent and aromatic hydrocarbons, water pairs

Carbon oxide

Acetylene, ethylene, methane, mixture of butane and propane, nitrogen oxides, chlorine, anhydride sulfur, hydrogen, pairs of gasoline, benzene and its homologs, water, acetone, acids of forming, formaldehyde, ethyl and methyl alcohol, dichloroethane, surgel

Metal carbonyl vapors

Couples bromine, iodine, oxidizing agents, chloramines

Ethyl ether

Couples of water, ethyl alcohol, organic acids, phenol

(Modified edition, change No. 1).

ATTACHMENT 3
Reference

Normated metrological characteristics of indicator tubes and air intake devices to them

1. Metrological characteristics

1.1. For linearly colorful indicator tubes, the following metrological characteristics are set:

nominal static conversion characteristics,

the range of measured concentrations,

basic error

relative error

the functions of influence caused by a change in the affecting value within the working conditions.

1.2. The characteristics of the indicator tubes intended to determine the presence of a harmful substance in the air of the working area (colorimetric indicator tubes) are:

the nominal value of the concentration of the harmful substance that causes the appearance of the indication effect (triggering concentration);

the error of response.

1.3. For air intake devices, the following metrological characteristics are set:

losen air

the dosing error of the volume of amusement air.

It is allowed instead of the volume to normalize the duration of the simulation and the volume flow rate of the air separated through the indicator tube.

2. Methods of rationing and form of submission of metrological characteristics

2.1. The nominal static conversion characteristic is represented as a formula or graph, which corresponds to the scale applied to the indicator tube, a cassette or a special label.

2.2. The range of measured concentrations is characterized by its lower and upper boundaries. The lower limit of the measurement range should be no more than 0.5 extremely permissible concentration, and the upper limit is at least 5 maximum permissible concentrations for this substance.

It is allowed to break the measurement range into several subbands due to changes in the volume of the air separated through the indicator tube, establishing the nominal static characteristic of the conversion for each of these volumes.

If the readings range does not coincide with the measurement range, then the indication range is normalized by setting the initial and final value of the scale.

2.3. The main error of the indicator tubes is characterized by the limit of the allowed basic error. The limit values \u200b\u200bof the allowed basic error should be chosen from the row installed in GOST 8.401-80.

At the stages of the development of indicator tubes, their main error is characterized by:

the limit of the allowed value of the systematic component of the main error,

the limit of the permissible value of the average quadratic deviation of the random component of the main error.

2.4. The number of successively used indicator tubes, which reduces the error of the result of measuring the concentrations of a harmful substance to values \u200b\u200bnot exceeding those set in paragraph. Of this standard, are set in the regulatory documentation and should be no more than 5.

2.8. The regulatory documentation for the specific indicator tubes includes data on impurities in a gas-air medium that interfere with the concentrations of this harmful substance. The impurity is considered non-loving if at the concentration of impurities at the level of the maximum permissible value for it the magnitude of the basic error of the indicator tube is less than the established limit.

2.9. In the regulatory documentation for indicator tubes, storage conditions must be specified and the warranty storage period, during which the values \u200b\u200bof the error of the indicator tubes are within the established limits.

The values \u200b\u200bof the warranty period for storing indicator tubes are selected from the row 1; 1.5; 2; 3 and 5 years.

2.10. The volume of air separated through the indicator tube using the air intake device is expressed in cm 3.

The dosing error of the volume of amusement air is characterized by the limit of the allowed value and choose from the row 5, 3, 2, 1 and 0.5%.

The air intake device intended for use with the indicator tube must have the same flow characteristics as the air intake device used when the indicator tube is graded.

Name:

System of labor safety standards. Air of the working area. Method for measuring the concentrations of harmful substances by indicator tubes

Act

Date of administration:

Date of cancellation:

Replaced with:

Text GOST 12.1.014-84 Labor safety standards. Air of the working area. Method for measuring the concentrations of harmful substances by indicator tubes

GOST 12.1.014-84

Interstate standard

Labor safety standards

Air working area

Method of measuring concentrations of harmful substances

Indicator tubes

Official edition

Standinform

UDC 614.71: 543.27: 006.354

Group T58.

Interstate standard

Labor safety standards

Air working area

Method for measuring the concentrations of harmful substances by indicator tubes

Occupational Safety Standards System. GOST 12.1.014-79

AIR IN THE ZONE OF OPERATION. Method of Measuring Unhealthy Matters Concentration Using Indicator Tubes

MKC 13.040.30 OKSTA 0012

Resolution of the USSR State Committee on Standards of December 14, 1984 No. 4362 Date of Introduction

01.01.86

Limit of the validity of the expirational period of the Interstate Council on Standardization, Metrology and Certification (IUS 11-12-94)

This standard establishes an accelerated method for measuring the concentrations of harmful substances in the air of the working area with indicator tubes, in addition to air underground mining.

The essence of the method consists in changing the color of the indicator powder as a result of a reaction with a harmful substance (gas or ferry) in the air analyzed, separated through the tube. Measurement of the concentration of harmful substance is performed by the length of the changed initial color of the indicator powder layer in the tube (linear-color indicator tube) or in its intensity (colorimetric indicator tube).

The terms applied in the standard and their explanations are shown in Appendix 1.

The characteristics of the displayed indicator powders are shown in Appendix 2.

Normated metrological characteristics of indicator tubes and air intake devices are given to them in Appendix 3.

1. Equipment

1.1. Indicator tubes, including equipped with a consumer with special sets with indicator powders.

1.2. Filtering tubes, including equipped with a consumer with special sets.

1.3. Air intake device (type of pump, bellows and others), intended for use with this indicator tube.

2. Preparation for measurement

2.1. The preparation of equipment for measuring the concentrations of harmful substances in the air of the working area is carried out in accordance with the regulatory and technical documentation for indicator and filter tubes and the air intake device intended for them.

2.2. In unexplored production conditions, before measuring, indicator tubes need to be made a one-time high-quality assessment of the composition of the working area using certified techniques or guidelines approved by the USSR Ministry of Health. Based on the data obtained, establish the possibility

Edition Official Reprint is prohibited

Edition (October 2010) with change No. 1, approved in March 1990

© Standards Publishing House, 1984 © Standinform, 2010

applications of indicator tubes for scheduled or operational control. Regardless of the composition of the working area, the use of filter tubes with indicator, if provided for in the regulatory and technical documentation for indicator tubes, is mandatory in order to avoid violation of the operating conditions of the indicator tubes.

Re-high-quality assessment of the composition of the working area should be carried out with each change in the production technology that can cause new harmful substances in the air.

2.1, 2.2. (Modified edition, change No. 1).

3. Measurement

3.1. Measuring the concentrations of harmful substances in the air of the working area are carried out with the following parameters:

barometric pressure - from 90 to 104 kPa (680-780 mm Hg. Art.);

relative humidity - 30-80%;

temperature - from 288 to 303 K.

A deviation from the specified parameters is allowed if it is provided in the regulatory and technical documentation for the measurement tools.

The control of the meteorological parameters of air of the working area should be carried out in parallel with the measurements of the concentrations of harmful substances by indicator tubes.

3.2. An indicator tube is connected to the air intake unit, designed to measure the concentration of harmful substance, and filtering tubes, if provided for by the regulatory and technical documentation.

Measurement should be started no later than 1 min after depressurization of the tubes.

3.1, 3.2. (Modified edition, change No. 1).

3.3. The amount of air separated through the indicator tubes is set in accordance with the regulatory and technical documentation for these tubes.

3.4. The measurement of concentrations of harmful substances is carried out sequentially under production conditions according to GOST 12.1.005-88. In this case, the number of indicator tubes specified in the relevant regulatory and technical documentation is used.

3.5. The concentration of harmful substance in mg / m 3 in the air of the working area is measured along the length or intensity of the indicator layer of the indicator powder with the help of an indicator tube, a cassette or a special label. For the measurement result, the mean largemetic of consecutive observations is taken as indicated in paragraph 3.4.

3.6. When the boundaries of the separation of the layers of the original and reacted indicator powder, the concentration of the measured harmful substance on the scale are carried out at the bottom and upper parts of the boundary. For the measurement result, the average value is taken.

3.7. The result of measuring the concentration of harmful substance leads to normal conditions (s H): temperature 293 K, atmospheric pressure of 101.3 kPa (760 mm Hg. Art.), Relative humidity 60%.

The concentration (s H) under normal conditions in mg / m 3 is calculated by the formula

S H C |, F, R

(273 + 0-101,3 293 p

where C v f, /; - the result of measuring the concentration of harmful substance, at ambient air temperature T ° C, the relative humidity of f% and atmospheric pressure P kPa, mg / m 3;

K is a coefficient that takes into account the effect of the temperature and humidity of the ambient air on the indication of the indicator tubes, the value of which is determined in accordance with paragraph 2.5 of Annex 3.

The relative measurement error (b) should not exceed +35% in the range of up to 2.0 extremely permissible concentrations (MPC) inclusive and +25% at concentrations above 2.0 PDC under the conditions specified in clause 3.1.

The measurement result is represented as: (with H + A) mg / m 3 with a trusted probability of 0.95.

The magnitude of the absolute error (a) is calculated by the formula

In the range of up to 1.0 MPC, an increase in error is allowed to + 60%. This value of the relative error must be indicated in the regulatory and technical documentation for measuring instruments.

(Modified edition, change No. 1).

4. Safety requirements

4.1. When measuring the concentrations of harmful substances, the indicator tubes in the air of the working area should comply with the norms and rules of safety operating in this production.

4.2. Measuring concentrations of harmful substances Indicator tubes are carried out by persons who have trained and allowed to work on the control of harmful substances in the air of the working area.

4.3. When opening the tubes, it is necessary to observe all precautions when working with glass, applying special devices and means of protection.

Appendix 1 reference

Terms applied in the standard and their explanations

Work zone

Method of measuring the concentration of harmful substances Harmful substance is extremely valid

concentration of harmful substances in the air of the working area

According to GOST 12.1.005-88 in RMG 29-99

According to GOST 12.1.007-76 according to GOST 12.1.005-88

Explanation

Indicator tube

Linear-color corton tube

Primary measuring transducer, structurally representing a glass tube filled with a grain filler (indicator powder)

Indicator tube that allows you to measure the concentration of harmful substance in the analyzed air, separated through the tube, along the length of the initial color of the layer of the indicator powder in the tube

Colorimetric indicator tube

Indicator tube allowing to judge the presence of a harmful substance in the analyzed air separated through the tube, at a concentration, greater trigger concentration for this indicator tube in the intensity of the color powder intensity by comparing with the control sample of the indication effect

Filtering tube

Glass tube filled with one or more absorbers serving to capture gases, vapors that interfere with the measurement of harmful substances

Indicator powder

Hemosorbent grain, changing color when passing through it directly determined by a harmful substance or its volatile interaction products with hemosorbent in the filter tube

Absorber

Grain Sorbent or Hemosorbent, fully transmitting a determined harmful substance and capturing concomitant substances that interfere with the analysis

Range of indications

The area of \u200b\u200bthe values \u200b\u200bof the indicator tube, limited by the final and initial values \u200b\u200bof the scale

Nizhny (upper) limit air intake device

The smallest (most) value of the measured concentrations device for amusement of air through the indicator tubes

Appendix 2 reference

Characteristics of manufactured indicator powders for equipment of indicator tubes

Defined gas (pairs)

Losen air volume, cm 3

Range

measurements

Total air inlets, with

Gas (pairs) captured by filtering cartridge

Gas (pairs) interferes with the definition

Nitrogen oxides

Halogens (chlorine, bromine, iodine), ozone in concentrations above 10 MPC

Pairs acids alkalis

Anhydride Ser

Hydrogen sulfide, ammonia,

nitrogen dioxide, sulfuric acid fog, water pairs

Acetylene

Hydrogen sulfide, phospho-

richen hydrogen, silicon hydrogen, ammonia, acetone and water pairs

Anhydride sulfur

Cauca couples and complex

acetic acid pairs

esters, vinegar pairs

acetic anhydride, salt

ohic acid acetic

acid in concentrate

anhydride, salt kis

tracing up to 10 PDC

lots and anhydride series

stoy in concentrations above 10 MPC

Hydrocarbons aromatic and unforeseen, water pairs

Couple of water

Pair of hydrocarbons

Couple of water

Pair of hydrocarbons

fat and aromatic rows

Hydrogen sulfide

Mercptany

Couple of water

Pair of hydrocarbons

fat and aromatic rows

Hydrocarbons

Petrogen hydrocarbons

delicious and aromatic, water pairs

Carbon

Acetylene, ethylene, methane,

Pair carbonyls

mixture of Bhutan and Propane,

nitrogen oxides, chlorine, anhydride sulfur, hydrogen, gasoline couple, benzene and

his homologists, water, acetone, antiform, formaldehyde, alcohols of ethyl and methyl, dichloroethane, carbon black

Couples bromine, iodine, oxidizing agents, chloramines

Ethyl

Water pairs, ethyl

alcohol, organic acids, phenol

Appendices 1, 2. (Modified edition, change. No. 1).

Appendix 3.

Mandatory

Normated metrological characteristics of indicator tubes and air intake devices to them

1. Metrological characteristics

1.1. For linearly colorful indicator tubes, the following metrological characteristics are set:

nominal static conversion characteristics, range of measured concentrations, main error, relative error,

the functions of influence caused by a change in the affecting value within the working conditions.

1.2. The characteristics of the indicator tubes intended to determine the presence of a harmful substance in the air of the working area (colorimetric indicator tubes) are:

the nominal value of the concentration of the harmful substance that causes the appearance of the indication effect (triggering concentration); The error of response.

1.3. For air intake devices, the following metrological characteristics are set: the volume of amplified air,

the dosing error of the volume of amusement air.

It is allowed instead of the volume to normalize the duration of the simulation and the volume flow rate of the air separated through the indicator tube.

2. Methods of rationing and form of submission of metrological characteristics

2.1. The nominal static conversion characteristic is represented as a formula or graph, which corresponds to the scale applied to the indicator tube, a cassette or a special label.

2.2. The range of measured concentrations is characterized by its lower and upper boundaries. The lower limit of the measurement range should be no more than 0.5 extremely permissible concentration, and the upper limit is at least 5 maximum permissible concentrations for this substance.

It is allowed to break the measurement range into several subbands due to changes in the volume of the air separated through the indicator tube, establishing the nominal static characteristic of the conversion for each of these volumes.

If the readings range does not coincide with the measurement range, then the indication range is normalized by setting the initial and final value of the scale.

2.3. The main error of the indicator tubes is characterized by the limit of the allowed basic error. The limit values \u200b\u200bof the allowed basic error should be chosen from the row installed in GOST 8.401-80.

At the stages of the development of indicator tubes, their main error is characterized by: the limit of the value of the systematic component of the basic error, the limit of the permissible value of the average quadratic deviation of the random component of the main error.

2.4. The number of successively used indicator tubes, which reduces the error of the result of measuring the concentrations of a harmful substance to values \u200b\u200bthat do not exceed those set by and. 3.7 of this standard, establish in regulatory and technical documentation and should be no more than 5.

2.5. The effect of influence is normalized as a graph or table and takes into account the effect on the indicator tube of joint changes in temperature and relative humidity of ambient air within the conditions indicated in and. 3.1 of this standard.

The function of influence is not normalized if an additional error within the conditions specified in and. 3.1 of this standard, does not exceed 20% of the limit of the allowed basic error.

2.6. The nominal value of the concentration of harmful substance that causes the appearance of the indication effect in colorimetric indicator tubes (the concentration of the trigger) is expressed in mg / m 3.

2.7. The error of the colorimetric indicator tube is characterized by the limit of the permissible relative error of the concentration of the triggering. The limit values \u200b\u200bof the allowed basic error should be chosen from the row installed in GOST 8.401-80.

2.8. In the regulatory and technical documentation for specific indicator tubes, data on impurities in a gas-air medium interfering in measuring the concentrations of this harmful substance are included. The impurity is considered non-loving if at the concentration of impurities at the level of the maximum permissible value for it the magnitude of the basic error of the indicator tube is less than the established limit.

2.9. In the regulatory and technical documentation for indicator tubes, storage conditions and warranty storage period must be specified during which the values \u200b\u200bof the error of the indicator tubes are within the established limits.

The values \u200b\u200bof the warranty period for storing indicator tubes are selected from the row 1; 1.5; 2; 3 and 5 years.

2.10. The volume of air separated through the indicator tube using the air intake device is expressed in cm 3.

The dosing error of the volume of amusement air is characterized by the limit of the allowed value and choose from the row 5, 3, 2, 1 and 0.5%.

The air intake device intended for use with the indicator tube must have the same flow characteristics as the air intake device used when the indicator tube is graded.

Editor M.I. Maksimova technical editor N.S. Grishhanov Corrector V.E. Nesterova Computer layout L.A. Circular

Signed in print 02.12.2010. Format 60x84 1/8. Offset paper. Guard Times. Print offset.

Hood. Pechs. l. 0.93. Ud. l. 0.75. Circulation 25 copies. Zack. 984.

FSUE "Standinform", 123995 Moscow, grenade lane., 4.

Vocated in FSUE "Standinform" on the PEVM

Printed in the branch of FSUE "Standinform" - type. Moscow Provider, 105062 Moscow, Lyalin Per., 6

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  • GOST R ISO 16000-14-2013 air closed rooms. Part 14. Determination of the total content of polychlorinated dioxion-like biphenyls (PCB) and polychlorinated dibenzo-para-dioxins / dibenzo furans (PCDD / PCDF) (in a gaseous state and as solid suspended particles). Extraction, purification and analysis of high-resolution gas chromatography and mass spectrometry
  • GOST R ISO 16000-15-2012 air of closed rooms. Part 15. Sampling when determining nitrogen dioxide (NO2)
  • GOST R ISO 16000-17-2012 air closed rooms. Part 17. Detection and counting of mold fungi. Cultivation method
  • GOST R ISO 16000-18-2013 air closed rooms. Part 18. Detection and counting of mold fungi. Sampling by precipitation
  • GOST R ISO 16000-25-2013 air closed rooms. Part 25. Determination of the allocation of middle-tailed organic compounds by building materials. Method using microcamera
  • GOST R ISO 16183-2013 high-loaded engines. Measurement of emissions of gaseous harmful substances in undiluted exhaust gases and particle emissions using a system of dilution of a portion of the flow when testing on rapidly spent modes
  • GOST R ISO 17736-2013 air of the working area. Determination of isocyanates in the air using the selection device with two filters and highly efficient liquid chromatography
  • GOST R ISO 21438-2-2012 air of the working area. Determination of inorganic acids by ion chromatography. Part 2. Falling acids, except fluoride hydrogen (chloride, boromometer and nitric)
  • GOST R ISO 21438-3-2012 air of the working area. Determination of inorganic acids by ion chromatography. Part 3. Fluorofluoric acid and solid fluorides
  • GOST 32531-2013 benzidin. Measurement of the concentration of benzidine in water using liquid-liquid extraction or solid-phase extraction and convertible highly efficient liquid chromatography / corpuscular radiation interface / mass spectrometry
  • GOST R 56640-2015 Clean rooms. Design and installation. General requirements
  • GOST R ISO 14382-2015 air of the working area. Determination of the steam of toluenemicocyanate using fiberglass filters impregnated with 1- (2-pyridyl) -piperazine and analysis by the method of highly efficient liquid chromatography with ultraviolet and fluorescent detectors
  • GOST R ISO 16000-26-2015 air closed rooms. Part 26. Sampling when determining the content of carbon dioxide (CO2)
  • GOST R ISO 28439-2015 air of the working area. Characteristics of ultrafine aerosols and nano-aerosols. Determination of particle size distribution and countable concentration of particles using differential electrical mobility analysis systems
  • GOST 32596-2013 Benzidin. Measurement of the concentration of benzidine in water by gas chromatography - mass spectrometry
  • GOST R 55175-2012 The atmosphere of the mine. Methods of dusty control
  • GOST R 56638-2015 Clean rooms. Ventilation and air conditioning. General requirements
  • GOST R ISO 16000-28-2015 air closed rooms. Part 28. Determination of smell release by construction materials using test chambers
  • GOST 31824-2012 Fiber tumborators. Types and basic parameters. Safety requirements. Test methods
  • GOST 31830-2012 electrostilifers. Security Requirements and Test Methods
  • GOST 31831-2012 Centrifugal dust collectors. Security Requirements and Test Methods
  • GOST R 54578-2011 Air of the working area. Aerosols predominantly fibrogenic action. General principles of hygienic control and impact assessment
  • GOST R 54597-2011 Air of the working area. Ultradisperse aerosols, nanoparticle aerosols and nanostructured particles. Definition of characteristics and impact assessment when inhalation
  • GOST R ISO 11614-2011 Piston internal combustion engines with compression ignition. Device for measuring the smoke and determination of the absorption coefficient of the light flux in the exhaust gases
  • GOST R ISO 16000-12-2011 air closed rooms. Part 12. Sampling of polychlorinated biphenyl samples (PCB), polychlorinated dibenzo-particle-dioxins (PCDD), polychlorinated dibenzofuran (PCDF) and polycyclic aromatic hydrocarbons (PAU)
  • GOST R ISO 16000-7-2011 air of closed rooms. Part 7. Sampling when determining the content of asbestos fibers
  • GOST R ISO 16000-8-2011 air closed rooms. Part 8. Definition of the local average "age" of air in buildings to assess the conditions of ventilation
  • GOST R ISO 16362-2009 Air atmospheric air. Determination of the content of polycyclic aromatic hydrocarbons in the form of solid particles by highly efficient liquid chromatography
  • GOST R ISO 21438-1-2011 air of the working area. Determination of inorganic acids by ion chromatography. Part 1. Neutile acids (sulfur and phosphoric)
  • GOST R ISO 14644-6-2010 Clean rooms and associated controlled environments. Part 6. Terms
  • GOST 33554-2015 Car vehicles. The content of pollutants in the air of the driver's cabin and passenger premises. Technical requirements and test methods
  • GOST 33670-2015 Car vehicles are single. Methods of expertise and testing for assessing conformity
  • GOST R 53562-2009 The air of the working area. Basic provisions on the choice of methods of selection and analysis of samples on the content of isocyanates in the air
  • GOST R ISO 12884-2007 Air atmospheric air. Determination of the total content of polycyclic aromatic hydrocarbons (in a gaseous state and in the form of solid suspended particles). Sampling for a filter and a sorbent followed by the analysis by the method of chromato mass spectrometry
  • GOST R ISO 14644-3-2007 Clean rooms and related environments associated with them. Part 3. Test Methods
  • GOST R ISO 14644-7-2007 Clean rooms and associated controlled environments. Part 7. Insulating devices (Clean air shelters, glove boxes, insulators and mini-environments)
  • GOST R ISO 14965-2008 air quality. Determination of non-metal organic compounds. Pre-cryogenic concentration method and direct definition with a flame-ionization detector
  • GOST R ISO 15202-3-2008 air of the working area. Determination of metals and metalloids in solid aerosol particles by atomic emission spectrometry with inductively coupled plasma. Part 3. Analysis
  • GOST R ISO 16000-1-2007 air closed rooms. Part 1. Sampling. General provisions
  • GOST R ISO 16000-10-2009 air of closed rooms. Part 10. Determination of the separation of volatile organic compounds with construction and finishing materials. Test Cell Method
  • GOST R ISO 16000-11-2009 air closed rooms. Part 11. Determination of the separation of volatile organic compounds with construction and finishing materials. Selection, storage and preparation of test samples
  • GOST R ISO 16000-3-2007 air closed rooms. Part 3. Determination of the content of formaldehyde and other carbonyl compounds. Active Sampling Method
  • GOST R ISO 16000-5-2009 air closed rooms. Part 5. Selection of volatile organic compounds (LOS)
  • GOST R ISO 16000-6-2007 air of closed rooms. Part 6. Determination of volatile organic compounds in the air of closed rooms and a test chamber by active sampling on the TENAX sample, followed by thermal desorption and gas chromatographic analysis using MSS / PID
  • GOST R ISO 16000-9-2009 air closed rooms. Part 9. Determination of the separation of volatile organic compounds with construction and finishing materials. Method using test chamber
  • GOST R ISO 16017-2-2007 Air atmospheric, working area and closed premises. Sampling of volatile organic compounds using a sorption tube with subsequent thermoflexion and gas chromatographic analysis on capillary columns. Part 2. Diffusion method of sampling
  • GOST R ISO 16107-2009 air of the working area. Assessment of characteristics of diffusion samplers
  • GOST R ISO 16200-1-2007 Air quality of the working area. Sampling of volatile organic compounds followed by a desorption with solvent and gas chromatographic analysis. Part 1. Sampling by pumping method
  • GOST R ISO 16200-2-2007 Air quality of the working area. Sampling of volatile organic compounds followed by a desorption with solvent and gas chromatographic analysis. Part 2. Method of Diffusion Sampling
  • GOST R ISO 16702-2008 Air quality of the working area. Determination of the total content of isocyanate groups of organic compounds in the air by liquid chromatography using 1- (2-methoxy-phenyl) piperazine
  • GOST R ISO 17734-1-2009 Analysis of agitorganic compounds in the air by liquid chromatography and mass spectrometry. Part 1. Determination of isocyanates according to their Dibutylamin derivative
  • GOST R ISO 17734-2-2009 Analysis of azotorganic compounds in the air by liquid chromatography and mass spectrometry. Part 2. Determination of amines and aminoisocyanates according to their dibutylamin and ethylchloroformate derivative
  • GOST R ISO 8178-5-2009 Piston internal combustion engines. Measurement of emissions of harmful substances. Part 5. Test Fuel
  • GOST R ISO 9359-2007 air quality. The method of the stratified sample to assess the quality of atmospheric air
  • GOST R 57256-2016 air closed rooms. Sampling when determining ammonia
  • GOST R ISO 11771-2016 air quality. Determination of mass emissions averaged over time and emission factors. General approach
  • GOST R ISO 13137-2016 air of the working area. Pumps for individual sampling of samples of chemical and biological substances. Requirements and test methods
  • GOST R ISO 17091-2016 air of the working area. Determination of lithium hydroxide content, sodium hydroxide, potassium hydroxide and calcium dihydroxide. Method based on measuring the content of relevant cations using chromatography with ion suppression
  • GOST ISO 16000-21-2016 air closed rooms. Part 21. Detection and counting of mold fungi. Sampling
  • GOST ISO 16000-3-2016 air closed rooms. Part 3. Determination of the content of formaldehyde and other carbonyl compounds in the air of closed rooms and in the air of the test chamber. Active Sampling Method
  • GOST ISO 16000-4-2016 air closed rooms. Part 4. Definition of formaldehyde. Diffusion sampling method
  • GOST ISO 16000-6-2016 air closed rooms. Part 6. Determination of volatile organic compounds in the air of closed rooms and a test chamber by active sampling on the TENAX sample, followed by thermal desorption and gas chromatographic analysis using MSS / PID
  • GOST R 57669-2017 air of the working area. Devices for the selection of bio-aerosol surround samples. Requirements and Test Methods
  • GOST R ISO 12219-5-2017 air of the internal space of motor vehicles. Part 5. Screening isolation of volatile organic compounds of interior decoration materials and parts of the cabin. Static method using test chamber
  • GOST R ISO 16258-1-2017 air of the working area. Analysis of inhaled crystalline silicon by X-ray diffraction. Part 1. Direct measurement method using filter
  • GOST R ISO 17734-1-2017 Analysis of agitorganic compounds in air by liquid chromatography and mass spectrometry. Part 1. Determination of isocyanates according to their Dibutylamin derivative
  • GOST R ISO 17734-2-2017 Analysis of azotorganic compounds in air by liquid chromatography and mass spectrometry. Part 2. Determination of amines and aminoisocyanates according to their dibutylamin and ethylchloroformate derivative
  • GOST R ISO 30011-2017 air of the working area. Determination of metals and metalloids in solid aerosol particles by mass spectrometry with inductive-bound plasma
  • GOST R ISO 14644-1-2017 Clean rooms and associated controlled environments. Part 1. Classification of air purity at the concentration of particles
  • GOST R ISO 8178-5-2017 Internal combustion engines piston. Measurement of combustion products. Part 5. Test Fuel
  • GOST ISO 16000-20-2017 air closed rooms. Part 20. Detection and counting of mold fungi. Definition of total dispute
  • GOST ISO 16000-27-2017 Air of closed rooms. Part 27. Determination of the presence of axial fibrous dust on the surfaces using a SEM (scanning electron microscope) (direct method)
  • GOST ISO 16000-29-2017 air closed rooms. Part 29. Los Detectors Test Methods
  • GOST ISO 16000-30-2017 air closed rooms. Part 30. Organoleptic air analysis of closed premises
  • GOST ISO 16000-32-2017 air closed rooms. Part 32. Estimation of buildings for pollutants
  • GOST ISO 14644-1-2002 Clean rooms and associated controlled environments. Part 1. Classification of air purity
  • GOST ISO 14698-1-2005 Clean rooms and associated controlled environments. Control of biomagusnation. Part 1. General principles and methods
  • GOST ISO 14698-2-2005 Clean rooms and associated controlled environments. Control of biomagusnation. Part 2. Analysis of data on biothas
  • GOST R EN 13205-2010 The air of the working area. Evaluation of the characteristics of devices for determining the content of solid particles
  • GOST R EN 13528-1-2010 The quality of atmospheric air. Diffusion samplers used in determining the content of gases and vapors. Requirements and test methods. Part 1. Common Requirements
  • GOST R EN 13528-2-2010 The quality of atmospheric air. Diffusion samplers used in determining the content of gases and vapors. Requirements and test methods. Part 2. Special requirements and test methods
  • GOST R EN 13528-3-2010 The quality of atmospheric air. Diffusion samplers used in determining the content of gases and vapors. Requirements and test methods. Part 3. Selectance, Use and Maintenance Guide
  • GOST R EN 1822-2-2012 Highly efficient air purification filters, HEPA and ULPA. Part 2. Running aerosols, test equipment, particle account statistics
  • GOST R EN 1822-3-2012 Highly efficient air purification filters, HEPA and ULPA. Part 3. Tests of a flat filtering material
  • GOST R EN 1822-4-2012 Highly efficient air purification filters, HEPA and ULPA. Part 4. Testing filters for leakage (scanning method)
  • GOST R EN 1822-5-2014 Highly efficient air purification filters, HEPA and ULPA. Part 5. Determination of the effectiveness of filter elements
  • GOST R EN 482-2012 air of the working area. General requirements for the characteristics of methods for measuring the content of chemicals

Air working area

Method of measuring concentrations of harmful substances

indicator tubes

GOST 12.1.014-84

State Standard of the SSR Union

Labor safety standards

Air working area

The method of measuring the concentrations of harmful substances GOST

indicator tubes 12.1.014-84

Occupational Safety Standards System. Air Of. Inspend

the Work Zone. Method of Measuring GOST 12.1.014-79

unhealthy Matters Concentration Using

Date of introduction 1986-01-01

Approved and put into effect by the Resolution of the USSR State Committee on Standards of December 14, 1984 No. 4362

Instead of GOST 12.1.014-79

Restriction of the term is removed by decision of the Interstate Council on Standardization, Metrology and Certification (Protocol No. 5-94)

Reprint (January 1996) with change No. 1, approved in March 1990 (IUS 7-90)

This standard establishes an accelerated method for measuring the concentrations of harmful substances in the air of the working area with indicator tubes, in addition to air underground mining.

The essence of the method consists in changing the color of the indicator powder as a result of a reaction with a harmful substance (gas or ferry) in the air analyzed, separated through the tube. Measurement of the concentration of harmful substance is performed by the length of the changed initial color of the indicator powder layer in the tube (linear-color indicator tube) or in its intensity (colorimetric indicator tube).

The terms applied in the standard and their explanations are shown in Appendix 1.

The characteristics of the displayed indicator powders are shown in Appendix 2.

Normated metrological characteristics of indicator tubes and air intake devices are given to them in Appendix 3.

1. Equipment

1.1. Indicator tubes, including equipped with a consumer with special sets with indicator powders.

1.2. Filtering tubes, including equipped with a consumer with special sets.

1.3. Air intake device (type of pump, bellows and others), intended for use with this indicator tube.

2. Preparation for measurement

2.1. The preparation of equipment for measuring the concentrations of harmful substances in the air of the working area is carried out in accordance with the regulatory documentation for indicator and filter tubes and the air intake device intended for them.

2.2. In unexplored production conditions, before measuring, indicator tubes need to be made a one-time high-quality assessment of the composition of the working area using certified techniques or guidelines approved by the USSR Ministry of Health. Based on the data obtained, it is possible to use indicator tubes for planned or operational control. Regardless of the composition of the working area, the use of filtering tubes with indicator, if it is provided in the regulatory documentation for indicator tubes, is mandatory in order to avoid violation of the operating conditions of the indicator tubes.

Re-high-quality assessment of the composition of the working area should be carried out with each change in the production technology that can cause new harmful substances in the air.

2.1, 2.2 (Modified edition, change No. 1).

3. Measurement

3.1. Measuring the concentrations of harmful substances in the air of the working area are carried out with the following parameters:

barometric pressure - from 90 to 104 kPa (680-780 mm Hg. Art);

relative humidity - 30-80%;

temperature - from 288 to 303 K.

A deviation from the specified parameters is allowed if it is provided in the regulatory and technical documentation for the measurement tools.

The control of the metrological parameters of the air of the working area should be carried out in parallel with the measurements of the concentrations of harmful substances by indicator tubes.

3.2. An indicator tube intended for measuring the concentration of harmful substance, and filtering tubes, if provided for by regulatory documentation, are connected to the air intakening device.

Measurement should be started no later than 1 min after depressurization of the tubes.

3.1, 3.2 (Modified edition, change No. 1).

3.3. The amount of air separated through the indicator tubes is set in accordance with the regulatory documentation for these tubes.

3.4. The measurement of concentrations of harmful substances is carried out sequentially under production conditions according to GOST 12.1.005-88. In this case, the number of indicator tubes specified in the relevant regulatory documentation is used.

3.5. The concentration of harmful substance in mg / m 3 in the air of the working area is measured along the length or intensity of the indicator layer of the indicator powder with the help of an indicator tube, a cassette or a special label. For the measurement result, the average arithmetic of consecutive observations is taken as indicated in 3.4.

3.6. When the boundaries of the separation of the layers of the initial and reharged indicator powder, the concentration of the measured harmful substance on the scale are carried out at the bottom and upper parts of the boundary. For the measurement result, the average value is taken.

3.7 The result of measuring the concentration of harmful substance leads to normal conditions ( With N.): Temperature 293 K, atmospheric pressure 101.3 kPa (760 mm Hg. Art), relative humidity 60%.

Concentration ( With N.) under normal conditions in mg / m 3 calculate according to the formula

where is the result of measuring the concentration of harmful substance, at ambient temperature, t. ° C, relative humidity

-% and atmospheric pressure of kpa, mg / m 3;

The coefficient that takes into account the influence of the temperature and humidity of the ambient air on the indicative of the indicator tubes, the value of which is determined in accordance with paragraph 2.5 of Annex 3.

The relative measurement error should not exceed ± 35% in the range of up to 2.0 extremely permissible concentrations (MPC) inclusive and ± 25% at concentrations above 2.0 PDC under the conditions specified in clause 3.1.

The measurement result is represented as: mg / m 3 with a trust probability of 0.95.

The magnitude of the absolute error D. Calculate by formula

In the range of up to 1.0 PDC, an increase in error is allowed to increase to ± 60%. This value of the relative error must be indicated in the regulatory and technical documentation for measuring instruments.

(Modified edition, change No. 1).

4. Safety requirements

4.1. When measuring the concentrations of harmful substances, the indicator tubes in the air of the working area should comply with the norms and rules of safety operating in this production.

4.2. Measuring concentrations of harmful substances Indicator tubes are carried out by persons who have trained and allowed to work on the control of harmful substances in the air of the working area.

4.3. When opening the tubes, it is necessary to observe all precautions when working with glass, applying special devices and means of protection.

Attachment 1
(Reference)

Terms applied in the standard and their explanations

Term

Explanation

Work zone

According to GOST 12.1.005-88

Method for measuring the concentration of harmful substances

According to GOST 16263-70

Harmful substance

According to GOST 12.1.007-76

Maximum permissible concentrations of harmful substances in the air of the working area

According to GOST 12.1.005-88

Indicator tube

Primary measuring transducer, structurally representing a glass tube filled with a grain filler (indicator powder)

Linear Colorist Indicator Tube

Indicator tube that allows you to measure the concentration of harmful substance in the analyzed air, separated through the tube, along the length of the initial color of the layer of the indicator powder in the tube

Colorimetric indicator tube

Indicator tube allowing to judge the presence of a harmful substance in the analyzed air separated through the tube, at a concentration, greater trigger concentration for this indicator tube in the intensity of the color powder intensity by comparing with the control sample of the indication effect

Filtering tube

Glass tube filled with one or more absorbers serving to capture gases, vapors that interfere with the measurement of harmful substances

Indicator powder

Hemosorbent grain, changing color when passing through it directly determined by a harmful substance or its volatile interaction products with hemosorbent in the filter tube

Absorber

Grain Sorbent or Hemosorbent, fully transmitting a determined harmful substance and capturing concomitant substances that interfere with the analysis

Range of indications

The area of \u200b\u200bthe values \u200b\u200bof the indicator tube, limited by the final and initial values \u200b\u200bof the scale

Nizhny (top) limit

The smallest (most) meaning of the measured concentrations

Air intake unit

Device for amusement air through indicator tubes

(Modified edition, change No. 1)

Appendix 2.
(Reference)

Characteristics of manufactured indicator powders for equipment of indicator tubes

Defined gas (pairs)

Losen air volume, cm 3

Measurement range, mg / m 3

Total air inlets, with

Gas (pairs) captured by filtering cartridge

Gas (pairs) interferes with the definition

Nitrogen oxides

2,5-50

Halogens (chlorine, bromine, iodine), ozone in concentrations above 10 MPC

Ammonia

2,5-30

Pairs of acids

20-100

alkalis and amines

Anhydride

5-30

Hydrogen sulfide,

sulfur

20-120

ammonia, nitrogen dioxide, sulfuric acid fog, water pairs

Acetylene

50-1400

Herry garden, phosphorous

1000-3000

hydrogen, silicon hydrogen, ammonia, acetone and water pairs

Acetone

100-2000

Anhydride sulfur, pair of acetic acid, acetic anhydride, hydrochloric acid, in concentrations up to 10 MPC

Caps of ketones and esters, acetic acid pair, acetic anhydride, hydrochloric acid and anhydride sulfur in concentrations above 10 MPC

Petrol

50-1000

Hydrocarbons aromatic and unforeseen, water pairs

Benzene

400 ´ 3

2-25

360 ´ 3

Couple of water

Xylene.

25-500

Couple of water

Pair of hydrocarbons of fatty and aromatic rows

Hydrogen sulfide

5-30

Mercptany

Toluene

25-500

Couple of water

Pair of hydrocarbons of fatty and aromatic rows

Petroleum hydrocarbons

100-1500

Independent and aromatic hydrocarbons, water pairs

Carbon oxide

5-120

Acetylene, ethylene, methane, mixture of butane and propane, nitrogen oxides, chlorine, anhydride sulfur, hydrogen, pairs of gasoline, benzene and its homologs, water, acetone, acids of forming, formaldehyde, ethyl and methyl alcohol, dichloroethane, surgel

Metal carbonyl vapors

Chlorine

0,15-15

Couples bromine, iodine, oxidizing agents, chloramines

Ethyl ether

100-3000

Couples of water, ethyl alcohol, organic acids, phenol

(Modified edition, change No. 1).

Appendix 3.
(Reference)

Normated metrological characteristics of indicator tubes and air intake devices to them

1. Metrological characteristics

1.1. For linearly colorful indicator tubes, the following metrological characteristics are set:

nominal static conversion characteristics,

the range of measured concentrations,

basic error

relative error

the functions of influence caused by a change in the affecting value within the working conditions.

1.2. The characteristics of the indicator tubes intended to determine the presence of a harmful substance in the air of the working area (colorimetric indicator tubes) are:

the nominal value of the concentration of the harmful substance that causes the appearance of the indication effect (triggering concentration);

the error of response.

1.3. For air intake devices, the following metrological characteristics are set:

losen air

the dosing error of the volume of amusement air.

It is allowed instead of the volume to normalize the duration of the simulation and the volume flow rate of the air separated through the indicator tube.

2. Methods of rationing and form of submission of metrological characteristics

2.1. The nominal static conversion characteristic is represented as a formula or graph, which corresponds to the scale applied to the indicator tube, a cassette or a special label.

2.2. The range of measured concentrations is characterized by its lower and upper boundaries. The lower limit of the measurement range should be no more than 0.5 extremely permissible concentration, and the upper limit is at least 5 maximum permissible concentrations for this substance.

It is allowed to break the measurement range into several subbands due to changes in the volume of the air separated through the indicator tube, establishing the nominal static characteristic of the conversion for each of these volumes.

If the readings range does not coincide with the measurement range, then the indication range is normalized by setting the initial and final value of the scale.

2.3. The main error of the indicator tubes is characterized by the limit of the allowed basic error. The limit values \u200b\u200bof the allowed basic error should be chosen from the row installed in GOST 8.401-80.

At the stages of the development of indicator tubes, their main error is characterized by:

the limit of the allowed value of the systematic component of the main error,

the limit of the permissible value of the average quadratic deviation of the random component of the main error.

2.4. The number of successively used indicator tubes, which reduces the error of the result of measuring the concentrations of a harmful substance to values \u200b\u200bnot exceeding those set in clause 3.7 of this Standard, are set in the regulatory documentation and should be no more than 5.

2.5. The function of influence is normalized in the form of a graph or table and takes into account the effect on the indicator of the indicator tube of joint changes in temperature and relative humidity of ambient air within the conditions specified in 3.1 of this Standard.

The effect of influence is not normalized if an additional error within the conditions specified in 3.1 of this standard does not exceed 20% of the limit of the fullestable urgency.

2.6. The nominal value of the concentration of harmful substance that causes the appearance of the indication effect in colorimetric indicator tubes (the concentration of the trigger) is expressed in mg / m 3.

2.7. The error of the colorimetric indicator tube is characterized by the limit of the permissible relative error of the concentration of the triggering. The limit values \u200b\u200bof the allowed basic error should be chosen from the row installed in GOST 8.401-80.

2.8. The regulatory documentation for the specific indicator tubes includes data on impurities in a gas-air medium that interfere with the concentrations of this harmful substance. The impurity is considered non-loving if at the concentration of impurities at the level of the maximum permissible value for it the magnitude of the basic error of the indicator tube is less than the established limit.

2.9. In the regulatory documentation for indicator tubes, storage conditions must be specified and the warranty storage period, during which the values \u200b\u200bof the error of the indicator tubes are within the established limits.

The values \u200b\u200bof the warranty period for storing indicator tubes are selected from the row 1; 1.5; 2; 3 and 5 years.

2.10. The volume of air separated through the indicator tube using the air intake device is expressed in cm 3.

The dosing error of the volume of amusement air is characterized by the limit of the allowed value and choose from the row 5, 3, 2, 1 and 0.5%.

The air intake device intended for use with the indicator tube must have the same flow characteristics as the air intake device used when the indicator tube is graded.

State Standard of the SSR Union

Labor safety standards

Air working area

Method of measuring concentrations of harmful substances
Indicator tubes

GOST 12.1.014-84

MOSCOW

Approved and put into effect by the Resolution of the USSR State Committee on Standards of December 14, 1984 No. 4362

Instead of GOST 12.1.014-79

Restriction of the term is removed by decision of the Interstate Council on Standardization, Metrology and Certification (Protocol No. 5-94)

Reprint (January 1996) with change No. 1, approved in March 1990 (IUS 7-90)

This standard establishes an accelerated method for measuring the concentrations of harmful substances in the air of the working area with indicator tubes, in addition to air underground mining.

The essence of the method consists in changing the color of the indicator powder as a result of a reaction with a harmful substance (gas or ferry) in the air analyzed, separated through the tube. Measurement of the concentration of harmful substance is performed by the length of the changed initial color of the indicator powder layer in the tube (linear-color indicator tube) or in its intensity (colorimetric indicator tube).

The terms applied in the standard and their explanations are shown in the application.

The characteristics of the displayed indicator powders are shown in the application.

Normated metrological characteristics of indicator tubes and air intake devices are shown in the application.

State Standard of the SSR Union

Labor safety standards

Air working area

Method of measuring concentrations of harmful substances

indicativetubes

Occupational Safety Standards System.
AIR OF THE Work Zone. Method of Measuring Unhealthy Matters
Concentration Using Indicator Tubes

GOST
12.1.014-84

Inspend
GOST 12.1.014-79

Date of introduction 1986-01-01

1. Equipment

1.1. Indicator tubes, including equipped with a consumer with special sets with indicator powders.

1.2. Filtering tubes, including equipped with a consumer with special sets.

1.3. Air intake device (type of pump, bellows and others), intended for use with this indicator tube.

2. Preparation for measurement

2.1. The preparation of equipment for measuring the concentrations of harmful substances in the air of the working area is carried out in accordance with the regulatory documentation for indicator and filter tubes and the air intake device intended for them.

2.2. In unexplored production conditions, before measuring, indicator tubes need to be made a one-time high-quality assessment of the composition of the working area using certified techniques or guidelines approved by the USSR Ministry of Health. Based on the data obtained, it is possible to use indicator tubes for planned or operational control. Regardless of the composition of the working area, the use of filtering tubes with indicator, if it is provided in the regulatory documentation for indicator tubes, is mandatory in order to avoid violation of the operating conditions of the indicator tubes.

Re-high-quality assessment of the composition of the working area should be carried out with each change in the production technology that can cause new harmful substances in the air.

2.1, 2.2 (Modified edition, change No. 1).

3. Measurement

barometric pressure - from 90 to 104 kPa (680-780 mm Hg);

relative humidity - 30 - 80%;

temperature - from 288 to 303 K.

A deviation from the specified parameters is allowed if it is provided in the regulatory and technical documentation for the measurement tools.

The control of the metrological parameters of the air of the working area should be carried out in parallel with the measurements of the concentrations of harmful substances by indicator tubes.

3.2. An indicator tube intended for measuring the concentration of harmful substance, and filtering tubes, if provided for by regulatory documentation, are connected to the air intakening device.

Measurement should be started no later than 1 min after depressurization of the tubes.

3.1, 3.2 (Modified edition, change No. 1).

3.3. The amount of air separated through the indicator tubes is set in accordance with the regulatory documentation for these tubes.

3.6. When the boundaries of the separation of the layers of the original and reacted indicator powder, the concentration of the measured harmful substance on the scale are carried out at the bottom and upper parts of the boundary. For the measurement result, the average value is taken.

Concentration ( FROMn) under normal conditions in mg / m3 calculated by the formula

where is the result of measuring the concentration of harmful substance, at ambient temperature, t. ° С, relative humidity φ% and atmospheric pressure r kPa, mg / m3;

K.B is a coefficient that takes into account the influence of the temperature and humidity of the ambient air on the indication of the indicator tubes, the value of which is determined in accordance with the application.

The relative measurement error (Δ) should not exceed ± 35% in the range of up to 2.0 maximum permissible concentrations (MPC) inclusive and ± 25% at concentrations above 2.0 MPC under the conditions specified in clause.

The measurement result is represented as: ( FROMH ± δ) mg / m3 with trust probability 0.95.

The magnitude of the absolute error D is calculated by the formula

In the range of up to 1.0 PDC, an increase in error is allowed to increase to ± 60%. This value of the relative error must be indicated in the regulatory and technical documentation for measuring instruments.

(Modified edition, change No. 1).

4. Safety requirements

4.1. When measuring the concentrations of harmful substances, the indicator tubes in the air of the working area should comply with the norms and rules of safety operating in this production.

4.2. Measuring concentrations of harmful substances Indicator tubes are carried out by persons who have trained and allowed to work on the control of harmful substances in the air of the working area.

4.3. When opening the tubes, it is necessary to observe all precautions when working with glass, applying special devices and means of protection.

ATTACHMENT 1
Reference

Terms applied in the standard and their explanations

Explanation

Work zone

Method for measuring the concentration of harmful substances

According to GOST 16263-70

Harmful substance

Maximum permissible concentrations of harmful substances in the air of the working area

Indicator tube

Primary measuring transducer, structurally representing a glass tube filled with a grain filler (indicator powder)

Linear Colorist Indicator Tube

Indicator tube that allows you to measure the concentration of harmful substance in the analyzed air, separated through the tube, along the length of the initial color of the layer of the indicator powder in the tube

Colorimetric indicator tube

Indicator tube allowing to judge the presence of a harmful substance in the analyzed air separated through the tube, at a concentration, greater trigger concentration for this indicator tube in the intensity of the color powder intensity by comparing with the control sample of the indication effect

Filtering tube

Glass tube filled with one or more absorbers serving to capture gases, vapors that interfere with the measurement of harmful substances

Indicator powder

Hemosorbent grain, changing color when passing through it directly determined by a harmful substance or its volatile interaction products with hemosorbent in the filter tube

Absorber

Grain Sorbent or Hemosorbent, fully transmitting a determined harmful substance and capturing concomitant substances that interfere with the analysis

Range of indications

The area of \u200b\u200bthe values \u200b\u200bof the indicator tube, limited by the final and initial values \u200b\u200bof the scale

Nizhny (top) limit

The smallest (most) meaning of the measured concentrations

Air intake unit

Device for amusement air through indicator tubes

(Modified edition, change No. 1).

ATTACHMENT 2
Reference

Characteristics of manufactured indicator powders for equipment of indicator tubes

Defined gas (pairs)

Losen air volume, cm3

Measurement range, mg / m3

Total air inlets, with

Gas (pairs) captured by filtering cartridge

Gas (pairs) interferes with the definition

Nitrogen oxides

Halogens (chlorine, bromine, iodine), ozone in concentrations above 10 MPC

Pairs acids, alkalis and amines

Sulvous anhydride

Hydrogen sulfide, ammonia, nitrogen dioxide, sulfuric acid fog, water pairs

Acetylene

Hydrogen sulfoporic hydrogen, silicon hydrogen, ammonia, acetone and water pairs

Anhydride sulfur, pair of acetic acid, acetic anhydride, hydrochloric acid, in concentrations up to 10 MPC

Caps of ketones and esters, acetic acid pair, acetic anhydride, hydrochloric acid and anhydride sulfur in concentrations above 10 MPC

Hydrocarbons aromatic and unforeseen, water pairs

Couple of water

Couple of water

Pair of hydrocarbons of fatty and aromatic rows

Hydrogen sulfide

Mercptany

Couple of water

Pair of hydrocarbons of fatty and aromatic rows

Petroleum hydrocarbons

Independent and aromatic hydrocarbons, water pairs

Carbon oxide

Acetylene, ethylene, methane, mixture of butane and propane, nitrogen oxides, chlorine, anhydride sulfur, hydrogen, pairs of gasoline, benzene and its homologs, water, acetone, acids of forming, formaldehyde, ethyl and methyl alcohol, dichloroethane, surgel

Metal carbonyl vapors

Couples bromine, iodine, oxidizing agents, chloramines

Ethyl ether

Couples of water, ethyl alcohol, organic acids, phenol

(Modified edition, change No. 1).

ATTACHMENT 3
Reference

Normated metrological characteristics of indicator tubes and air intake devices to them

1. Metrological characteristics

1.1. For linearly colorful indicator tubes, the following metrological characteristics are set:

nominal static conversion characteristics,

the range of measured concentrations,

basic error

relative error

the functions of influence caused by a change in the affecting value within the working conditions.

1.2. The characteristics of the indicator tubes intended to determine the presence of a harmful substance in the air of the working area (colorimetric indicator tubes) are:

the nominal value of the concentration of the harmful substance that causes the appearance of the indication effect (triggering concentration);

the error of response.

1.3. For air intake devices, the following metrological characteristics are set:

losen air

the dosing error of the volume of amusement air.

It is allowed instead of the volume to normalize the duration of the simulation and the volume flow rate of the air separated through the indicator tube.

2. Methods of rationing and form of submission of metrological characteristics

2.1. The nominal static conversion characteristic is represented as a formula or graph, which corresponds to the scale applied to the indicator tube, a cassette or a special label.

2.2. The range of measured concentrations is characterized by its lower and upper boundaries. The lower limit of the measurement range should be no more than 0.5 extremely permissible concentration, and the upper limit is at least 5 maximum permissible concentrations for this substance.

It is allowed to break the measurement range into several subbands due to changes in the volume of the air separated through the indicator tube, establishing the nominal static characteristic of the conversion for each of these volumes.

If the readings range does not coincide with the measurement range, then the indication range is normalized by setting the initial and final value of the scale.

2.3. The main error of the indicator tubes is characterized by the limit of the allowed basic error. The limit values \u200b\u200bof the allowed basic error should be chosen from the row installed in GOST 8.401-80.

At the stages of the development of indicator tubes, their main error is characterized by:

the limit of the allowed value of the systematic component of the main error,

the limit of the permissible value of the average quadratic deviation of the random component of the main error.

2.4. The number of successively used indicator tubes, which reduces the error of the result of measuring the concentrations of a harmful substance to values \u200b\u200bnot exceeding those set in paragraph. Of this standard, are set in the regulatory documentation and should be no more than 5.

2.8. The regulatory documentation for the specific indicator tubes includes data on impurities in a gas-air medium that interfere with the concentrations of this harmful substance. The impurity is considered non-loving if at the concentration of impurities at the level of the maximum permissible value for it the magnitude of the basic error of the indicator tube is less than the established limit.

2.9. In the regulatory documentation for indicator tubes, storage conditions must be specified and the warranty storage period, during which the values \u200b\u200bof the error of the indicator tubes are within the established limits.

The values \u200b\u200bof the warranty period for storing indicator tubes are selected from the row 1; 1.5; 2; 3 and 5 years.

2.10. The amount of air separated through the indicator tube with the help of the air intake device is expressed in CM3.

The dosing error of the volume of amusement air is characterized by the limit of the allowed value and choose from the row 5, 3, 2, 1 and 0.5%.

The air intake device intended for use with the indicator tube must have the same flow characteristics as the air intake device used when the indicator tube is graded.

Interstate standard GOST 12.1.014-84
"Labor safety standards system. Air of the working area. The method of measuring the concentrations of harmful substances by indicator tubes"
(appliance. Resolution of the USSR State Standard dated December 14, 1984 N 4362)

Occupational Safety Standards System. AIR IN THE ZONE OF OPERATION. Method of Measuring Unhealthy Matters Concentration Using Indicator Tubes.

Instead of GOST 12.1.014-79

This standard establishes an accelerated method for measuring the concentrations of harmful substances in the air of the working area with indicator tubes, in addition to air underground mining.

The essence of the method consists in changing the color of the indicator powder as a result of a reaction with a harmful substance (gas or ferry) in the air analyzed, separated through the tube. Measurement of the concentration of harmful substance is performed by the length of the changed initial color of the indicator powder layer in the tube (linear-color indicator tube) or in its intensity (colorimetric indicator tube).

The terms applied in the standard and their explanations are shown in Appendix 1.

The characteristics of the displayed indicator powders are shown in Appendix 2.

Normated metrological characteristics of indicator tubes and air intake devices are given to them in Appendix 3.

1. Equipment

1.1. Indicator tubes, including equipped with a consumer with special sets with indicator powders.

1.2. Filtering tubes, including equipped with a consumer with special sets.

1.3. Air intake device (type of pump, bellows and others), intended for use with this indicator tube.

2. Preparation for measurement

2.1. The preparation of equipment for measuring the concentrations of harmful substances in the air of the working area is carried out in accordance with the regulatory and technical documentation for indicator and filter tubes and the air intake device intended for them.

2.2. In unexplored production conditions, before measuring, indicator tubes need to be made a one-time high-quality assessment of the composition of the working area using certified techniques or guidelines approved by the USSR Ministry of Health. Based on the data obtained, it is possible to use indicator tubes for planned or operational control. Regardless of the composition of the working area, the use of filter tubes with indicator, if provided for in the regulatory and technical documentation for indicator tubes, is mandatory in order to avoid violation of the operating conditions of the indicator tubes.

Re-high-quality assessment of the composition of the working area should be carried out with each change in the production technology that can cause new harmful substances in the air.

2.1, 2.2. (Modified edition, meas. N 1).

3. Measurement

3.1. Measuring the concentrations of harmful substances in the air of the working area are carried out with the following parameters:

barometric pressure - from 90 to 104 kPa (680-780 mm Hg. Art.);

relative humidity - 30-80%;

temperature - from 288 to 303 K.

A deviation from the specified parameters is allowed if it is provided in the regulatory and technical documentation for the measurement tools.

The control of the meteorological parameters of air of the working area should be carried out in parallel with the measurements of the concentrations of harmful substances by indicator tubes.

3.2. An indicator tube is connected to the air intake unit, designed to measure the concentration of harmful substance, and filtering tubes, if provided for by the regulatory and technical documentation.

Measurement should be started no later than 1 min after depressurization of the tubes.

3.1, 3.2. (Modified edition, meas. N 1).

3.3. The amount of air separated through the indicator tubes is set in accordance with the regulatory and technical documentation for these tubes.

3.4. The measurement of concentrations of harmful substances is carried out sequentially under production conditions according to GOST 12.1.005-88. In this case, the number of indicator tubes specified in the relevant regulatory and technical documentation is used.

3.5. The concentration of the harmful substance in mg / m3 in the air of the working area is measured by length or intensity of the indicator layer of the indicator powder that has changed the initial color using the scale applied to the indicator tube, a cassette or a special label. For the result of the measurement, the arithmetic average of consecutive observations is taken as indicated in clause 3.4.

3.6. When the boundaries of the separation of the layers of the original and reacted indicator powder, the concentration of the measured harmful substance on the scale are carried out at the bottom and upper parts of the boundary. For the measurement result, the average value is taken.

3.7. The result of measuring the concentration of the harmful substance leads to normal conditions (C_n): temperature 293 K, atmospheric pressure of 101.3 kPa (760 mm Hg. Art.), Relative humidity is 60%.

The concentration (C_H) under normal conditions in mg / m3 is calculated by the formula

_ (273 + t) x 101.3 C \u003d C, fi, p ------------------ x k, n t 293 x p in _ where with, fi, P is the result of measuring the concentration of harmful substance, t at the ambient air temperature T ° C, the relative humidity of Fin% and atmospheric pressure P kPa, mg / m3; K is a coefficient that takes into account the effect of temperature and in the humidity of the ambient air on the indication of the indicator tubes, the value of which is determined in accordance with paragraph 2.5 of Annex 3.

The relative measurement error (Delta) should not exceed + -35% in the range of up to 2.0 extremely permissible concentrations (MPC) inclusive and + -25% at concentrations above 2.0 MPC under the conditions specified in clause 3.1.

The measurement result is represented as: (s_n +-cabin) mg / m3 with trust probability 0.95. The magnitude of the absolute error (Delta) is calculated by the formula

Delta Delta \u003d C ------. H 100

In the range of up to 1.0 MPC, an increase in error to + -60% is allowed. This value of the relative error must be indicated in the regulatory and technical documentation for measuring instruments.

(Modified edition, meas. N 1).

4. Safety requirements

4.1. When measuring the concentrations of harmful substances, the indicator tubes in the air of the working area should comply with the norms and rules of safety operating in this production.

4.2. Measuring concentrations of harmful substances Indicator tubes are carried out by persons who have trained and allowed to work on the control of harmful substances in the air of the working area.

4.3. When opening the tubes, it is necessary to observe all precautions when working with glass, applying special devices and means of protection.

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