ASTM D3687-01
(Practice)Standard Practice for Analysis of Organic Compound Vapors Collected by the Activated Charcoal Tube Adsorption Method
Standard Practice for Analysis of Organic Compound Vapors Collected by the Activated Charcoal Tube Adsorption Method
SCOPE
1.1 This practice covers the applications of methods for the desorption and gas chromatographic determination of organic vapors that have been adsorbed from air in sampling tubes packed with activated charcoal.
1.2 This practice is complementary to Practice D3686.
1.3 This practice is applicable for analysis of samples taken from workplace or other atmospheres, provided that the contaminant adsorbs onto charcoal and that it can be analyzed by gas chromatography. A partial list of organic compounds for which this method is applicable is given in A1 in Practice D3686.
1.4 Organic compounds of multicomponent samples may mutually interfere during analysis. Methods to resolve interferences are given in Section 6.
1.5 The values stated in SI units are to be regarded as the standard.
1.6 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautions are given in 8.1.4.2 and A1.
General Information
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Standards Content (Sample)
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Designation:D3687–01
Standard Practice for
Analysis of Organic Compound Vapors Collected by the
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Activated Charcoal Tube Adsorption Method
This standard is issued under the fixed designation D 3687; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope CDC-99-74-45 Documentation of NIOSH Validation
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Tests
1.1 This practice covers the applications of methods for the
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Manual of Analytical Methods, 2nd Ed.
desorption and gas chromatographic determination of organic
2.3 OSHA Standard:
vapors that have been adsorbed from air in sampling tubes
29 CFR 1910 General and Industrial OSHA Safety and
packed with activated charcoal.
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Health Standard
1.2 This practice is complementary to Practice D 3686.
1.3 This practice is applicable for analysis of samples taken
3. Terminology
from workplace or other atmospheres, provided that the con-
3.1 Definitions:
taminant adsorbs onto charcoal and that it can be analyzed by
3.1.1 For definitions of terms used in this practice, refer to
gas chromatography. A partial list of organic compounds for
Terminology D 1356, and E 355.
which this method is applicable is given in A1 in Practice
3.1.2 relative retention time (RRT)—a ratio of RTs’ for two
D 3686.
chemicals for the same chromatographic column and carrier
1.4 Organic compounds of multicomponent samples may
gas flow rate, where the denominator represents a reference
mutually interfere during analysis. Methods to resolve inter-
chemical.
ferences are given in Section 6.
3.1.3 retention time (RT)—time to elute a specific chemical
1.5 The values stated in SI units are to be regarded as the
from a chromatographic column, for a specific carrier gas flow
standard.
rate, measured from the time the chemical is injected into the
1.6 This standard does not purport to address all of the
gas stream to when it appears at the detector.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Summary of Practice
priate safety and health practices and determine the applica-
4.1 Organic vapors, which have been collected on activated
bility of regulatory limitations prior to use. Specific precau-
charcoal and eluted therefrom with carbon disulfide or other
tions are given in 8.1.4.2 and Annex A1.
appropriate desorbent, are determined by gas-liquid chroma-
tography, using a flame ionization detector and other appropri-
2. Referenced Documents
2 ate detectors.
2.1 ASTM Standards:
4.2 Interferences resulting from the analytes having similar
D 1356 Terminology Relating to Sampling and Analysis of
retention times during gas-liquid chromatography are resolved
Atmospheres
by improving the resolution or separation, such as by changing
D 3686 Practice for Sampling Atmospheres to Collect Or-
the chromatographic column or operating parameters, or by
ganic Compound Vapors (Activated Charcoal Tube Ad-
fractionating the sample by solvent extraction.
sorption Method)
4.3 Peaks are identified using techniques such as GC/MS
E 355 Practice for Gas Chromatography Terms and Rela-
and dual column chromatography.
tionships
2.2 NIOSH Standards:
5. Significance and Use
5.1 Promulgations by the Federal Occupational Safety and
HealthAdministration (OSHA) in 29 CFR 1910 designate that
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This practice is under the jurisdiction ofASTM Committee D22 onAir Quality
certain organic compounds must not be present in workplace
and is the direct responsibility of Subcommittees D22.04 on Workplace Atmo-
spheres. atmospheres at concentrations above specified values.
Current edition approved October 10, 2001. Published December 2001. Origi-
nally published as D 3687 – 78. Last previous edition D 3687 – 95.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from the U.S. Department of Commerce, National Technical Infor-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM mation Service, Port Royal Road, Springfield, VA 22161.
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Standards volume information, refer to the standard’s Document Summary page on Available from Superintendent of Documents, U.S. Government Printing
the ASTM website. Office, Washington, DC 20402.
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D3687–01
5.2 This practice, when used in conjunction with Practice ane and polyethylene glycol wide bore capillary columns (0.53
D 3686, will promote needed accuracy and precision in the and 0.75 mm) may be used in place of the packed columns.
determination of airborne
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