ASTM D6420-18
(Test Method)Standard Test Method for Determination of Gaseous Organic Compounds by Direct Interface Gas Chromatography-Mass Spectrometry
Standard Test Method for Determination of Gaseous Organic Compounds by Direct Interface Gas Chromatography-Mass Spectrometry
SIGNIFICANCE AND USE
5.1 This field test method determines the mass concentration of VOHAPs (or any subset) listed in Section 1.
5.2 Multiplying the mass concentration by the effluent volumetric flow rate (see 2.2) yields mass emission rates.
5.3 This field test method employs laboratory GCMS techniques and QA/quality control (QC) procedures in common application.
5.4 This field test method provides data with accuracy and precision similar to most laboratory GCMS instrumentation.
SCOPE
1.1 This test method employs a direct interface gas chromatograph/mass spectrometer (GCMS) to identify and quantify the 36 volatile organic compounds (or sub-set of these compounds) listed as follows. The individual Chemical Abstract Service (CAS) numbers are listed after each compound.
Benzene-71432
Methylene chloride-75092
Bromodichloromethane-75274
1,1,2,2-Tetrachloroethane-79349
Carbon disulfide-75150
1,1,1-Trichloroethane-71556
Chloroform-67663
1,1,2-Trichloroethane-79005
Methyl iso-Butyl ketone-108101
p-Xylene-106423
Styrene-100425
Bromomethane-74839
Tetrachloroethylene-127184
Carbon tetrachloride-56235
Toluene-108883
Chlorobenzene-108907
Bromoform-75252
c-1,3-Dichloropropene-10061015
Vinyl acetate-108054
1,2-Dichloroethane-156592
Vinyl chloride-75014
1,1-Dichloroethene-75354
Chloromethane-74873
t-1,2-Dichloroethene-156605
cis-1,2-Dichloroethene-156592
Methyl ethyl ketone-78933
Dibromochloromethane-124481
2-Hexanone-591786
1,1-Dichloroethane-107062
t-1,3-Dichloropropene-542756
1,2-Dichloropropane-78875
Trichloroethene-79016
Ethylbenzene-100414
m-Xylene-108383
Ethyl chloride-75003
o-Xylene-95476
1.2 The test method incorporates a performance-based approach, which validates each GCMS analysis by placing boundaries on the instrument response to gaseous internal standards and their specific mass spectral relative abundance. Using this approach, the test method may be extended to analyze other compounds.
1.3 The test method provides on-site analysis of extracted, unconditioned, and unsaturated (at the instrument) gas samples from stationary sources. Gas streams with high moisture content may require conditioning to prevent moisture condensation within the instrument. For these samples, quality assurance (QA) requirements are provided in the test method to validate the analysis of polar, water-soluble compounds.
1.4 The instrument range should be sufficient to measure the listed volatile organic compounds from 150 ppb(v) to 100 ppm(v), using a full scan operation (between 45 and 300 atomic mass units). The range may be extended to higher or lower concentrations using either of the following procedures:
1.4.1 The initial three-point calibration concentrations and the continuing calibration checks are adjusted to match the stack concentrations, or
1.4.2 The three-point calibration is extended to include additional concentrations to cover the measurement range.
1.5 The minimum quantification level is 50 % of the lowest calibration concentration. Responses below this level are considered to be estimated concentrations, unless a calibration standard check is conducted at a lower concentration to demonstrate linearity. The sensitivity of the GCMS measurement system for the individual target analytes depends upon:
1.5.1 The specific instrument response for each target analyte and the number of mass spectral quantification ions available.
1.5.2 The amount of instrument noise, and
1.5.3 The percent moisture content of the sample gas.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmen...
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D6420 − 18
Standard Test Method for
Determination of Gaseous Organic Compounds by Direct
1
Interface Gas Chromatography-Mass Spectrometry
This standard is issued under the fixed designation D6420; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope ance (QA) requirements are provided in the test method to
validate the analysis of polar, water-soluble compounds.
1.1 This test method employs a direct interface gas
1.4 Theinstrumentrangeshouldbesufficienttomeasurethe
chromatograph/mass spectrometer (GCMS) to identify and
quantify the 36 volatile organic compounds (or sub-set of these listed volatile organic compounds from 150 ppb(v) to 100
ppm(v), using a full scan operation (between 45 and 300
compounds) listed as follows. The individual Chemical Ab-
stract Service (CAS) numbers are listed after each compound. atomic mass units). The range may be extended to higher or
lower concentrations using either of the following procedures:
Benzene-71432 Methylene chloride-75092
Bromodichloromethane-75274 1,1,2,2-Tetrachloroethane-79349 1.4.1 The initial three-point calibration concentrations and
Carbon disulfide-75150 1,1,1-Trichloroethane-71556
the continuing calibration checks are adjusted to match the
Chloroform-67663 1,1,2-Trichloroethane-79005
stack concentrations, or
Methyl iso-Butyl ketone-108101 p-Xylene-106423
Styrene-100425 Bromomethane-74839 1.4.2 The three-point calibration is extended to include
Tetrachloroethylene-127184 Carbon tetrachloride-56235
additional concentrations to cover the measurement range.
Toluene-108883 Chlorobenzene-108907
Bromoform-75252 c-1,3-Dichloropropene-10061015
1.5 The minimum quantification level is 50 % of the lowest
Vinyl acetate-108054 1,2-Dichloroethane-156592
calibration concentration. Responses below this level are
Vinyl chloride-75014 1,1-Dichloroethene-75354
considered to be estimated concentrations, unless a calibration
Chloromethane-74873 t-1,2-Dichloroethene-156605
cis-1,2-Dichloroethene-156592 Methyl ethyl ketone-78933 standard check is conducted at a lower concentration to
Dibromochloromethane-124481 2-Hexanone-591786
demonstrate linearity. The sensitivity of the GCMS measure-
1,1-Dichloroethane-107062 t-1,3-Dichloropropene-542756
ment system for the individual target analytes depends upon:
1,2-Dichloropropane-78875 Trichloroethene-79016
Ethylbenzene-100414 m-Xylene-108383
1.5.1 The specific instrument response for each target ana-
Ethyl chloride-75003 o-Xylene-95476
lyte and the number of mass spectral quantification ions
1.2 The test method incorporates a performance-based
available.
approach, which validates each GCMS analysis by placing
1.5.2 The amount of instrument noise, and
boundaries on the instrument response to gaseous internal
1.5.3 The percent moisture content of the sample gas.
standards and their specific mass spectral relative abundance.
1.6 The values stated in SI units are to be regarded as
Using this approach, the test method may be extended to
standard. No other units of measurement are included in this
analyze other compounds.
standard.
1.3 The test method provides on-site analysis of extracted,
1.7 This standard does not purport to address all of the
unconditioned, and unsaturated (at the instrument) gas samples
safety concerns, if any, associated with its use. It is the
from stationary sources. Gas streams with high moisture
responsibility of the user of this standard to establish appro-
content may require conditioning to prevent moisture conden-
priate safety, health, and environmental practices and deter-
sation within the instrument. For these samples, quality assur-
mine the applicability of regulatory limitations prior to use.
Additional safety precautions are described in Section 9.
1.8 This international standard was developed in accor-
1
dance with internationally recognized principles on standard-
This test method is under the jurisdiction of ASTM Committee D22 on Air
Quality and is the direct responsibility of Subcommittee D22.03 on Ambient
ization established in the Decision on Principles for the
Atmospheres and Source Emissions.
Development of International Standards, Guides and Recom-
Current edition approved Nov. 1, 2018. Published November 2018. Originally
mendations issued by the World Trade Organization Technical
approved in 1999. Last previous edition approved in 2010 as D6420 – 99 (2010).
DOI: 10.1520/D6420-18. Barriers to Trade (TBT) Committee.
Cop
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6420 − 99 (Reapproved 2010) D6420 − 18
Standard Test Method for
Determination of Gaseous Organic Compounds by Direct
1
Interface Gas Chromatography-Mass Spectrometry
This standard is issued under the fixed designation D6420; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method employs a direct interface gas chromatograph/mass spectrometer (GCMS) to identify and quantify the 36
volatile organic compounds (or sub-set of these compounds) listed as follows. The individual Chemical Abstract Service (CAS)
numbers are listed after each compound.
Benzene-71432 Methylene chloride-75092
Bromodichloromethane-75274 1,1,2,2-Tetrachloroethane-79349
Carbon disulfide-75150 1,1,1-Trichloroethane-71556
Chloroform-67663 1,1,2-Trichloroethane-79005
Methyl iso-Butyl ketone-108101 p-Xylene-106423
Styrene-100425 Bromomethane-74839
Tetrachloroethylene-127184 Carbon tetrachloride-56235
Toluene-108883 Chlorobenzene-108907
Bromoform-75252 c-1,3-Dichloropropene-10061015
Vinyl acetate-108054 1,2-Dichloroethane-156592
Vinyl chloride-75014 1,1-Dichloroethene-75354
Chloromethane-74873 t-1,2-Dichloroethene-156605
cis-1,2-Dichloroethene-156592 Methyl ethyl ketone-78933
Dibromochloromethane-124481 2-Hexanone-591786
1,1-Dichloroethane-107062 t-1,3-Dichloropropene-542756
1,2-Dichloropropane-78875 Trichloroethene-79016
Ethylbenzene-100414 m-Xylene-108383
Ethyl chloride-75003 o-Xylene-95476
1.2 The test method incorporates a performance-based approach, which validates each GCMS analysis by placing boundaries
on the instrument response to gaseous internal standards and their specific mass spectral relative abundance. Using this approach,
the test method may be extended to analyze other compounds.
1.3 The test method provides on-site analysis of extracted, unconditioned, and unsaturated (at the instrument) gas samples from
stationary sources. Gas streams with high moisture content may require conditioning to prevent moisture condensation within the
instrument. For these samples, quality assurance (QA) requirements are provided in the test method to validate the analysis of
polar, water-soluble compounds.
1.4 The instrument range should be sufficient to measure the listed volatile organic compounds from 150 ppb(v) to 100 ppm(v),
using a full scan operation (between 45 and 300 atomic mass units). The range may be extended to higher or lower concentrations
using either of the following procedures:
1.4.1 The initial three-point calibration concentrations and the continuing calibration checks are adjusted to match the stack
concentrations, or
1.4.2 The three-point calibration is extended to include additional concentrations to cover the measurement range.
1.5 The minimum quantification level is 50 % of the lowest calibration concentration. Responses below this level are considered
to be estimated concentrations, unless a calibration standard check is conducted at a lower concentration to demonstrate linearity.
The sensitivity of the GCMS measurement system for the individual target analytes depends upon:
1.5.1 The specific instrument response for each target analyte and the number of mass spectral quantification ions available.
1.5.2 The amount of instrument noise, and
1.5.3 The percent moisture content of the sample gas.
1
This test method is under the jurisdiction of ASTM Committee D22 on Air Quality and is the direct responsibility of Subcommittee D22.03 on Ambient Atmospheres
and Source Emissions.
Current edition approved Oct. 1, 2010Nov. 1, 2018. Published November 2010November 2018. Originally approved in 1999. Last previous edition approved in 20042010
as D6420 – 99 (2004).(2010). DOI: 10.1520/D6420-99R10.10.1520/D6420-18.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D6420 − 18
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations pri
...
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