ASTM D3749-95
(Test Method)Standard Test Method for Residual Vinyl Chloride Monomer in Poly(Vinyl Chloride) Resins by Gas Chromatographic Headspace Technique
Standard Test Method for Residual Vinyl Chloride Monomer in Poly(Vinyl Chloride) Resins by Gas Chromatographic Headspace Technique
SCOPE
1.1 This test method is suitable for determining the residual vinyl chloride monomer (RVCM) content of poly(vinyl chloride) (PVC) homopolymer and copolymer resins for uses other than food contact. The range for this test, based on interlaboratory evaluation, is from 0.1 to 400 ppm RVCM.
1.2 This test method can be adapted to determinations of RVCM in a PVC copolymer resin if the Henry's Law constant at 90°C for that copolymer is known.
1.3 This test method cannot be used for polymer in fused forms, such as cubes or sheets. Refer to Test Method D4443 or Test Method D3680 for these materials.
1.4 This test method is proposed as an alternative to EPA Method 107 for determination of vinyl chloride monomers in dry-resin samples.
1.5 The values stated 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. Note 1-This test method is similar to ISO 6401-1985 in title only. The technical content is significantly different.
General Information
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Standards Content (Sample)
Designation: D 3749 – 95 An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Residual Vinyl Chloride Monomer in Poly(Vinyl Chloride)
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Resins by Gas Chromatographic Headspace Technique
This standard is issued under the fixed designation D 3749; 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.
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1. Scope Determine the Precision of a Test Method
2.2 Federal Standards:
1.1 This test method is suitable for determining the residual
Environmental Protection Agency Method 107 Determination
vinyl chloride monomer (RVCM) content of poly(vinyl chlo-
of Vinyl Chloride Content of In-Process Waste-Water
ride) (PVC) homopolymer and copolymer resins for uses other
Samples, and Vinyl Chloride Content of Poly(Vinyl Chlo-
than food contact. The range for this test, based on interlabo-
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ride) Resin, Slurry, Wet Cake, and Latex Samples
ratory evaluation, is from 0.1 to 400 ppm RVCM.
29 CFR 1919.1017 Vinyl Chloride for Regulated Levels of
1.2 This test method can be adapted to determinations of
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Exposure
RVCM in a PVC copolymer resin if the Henry’s Law constant
2.3 ISO Standard:
at 90°C for that copolymer is known.
ISO 6401-1985 Determination of Residual Vinyl Chloride
1.3 This test method cannot be used for polymer in fused
Monomer in Homopolymers and Copolymers by Gas
forms, such as cubes or sheets. Refer to Test Method D 4443 or
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Chromatography
Test Method D 3680 for these materials.
1.4 This test method is proposed as an alternative to EPA
3. Terminology
Method 107 for determination of vinyl chloride monomers in
3.1 Acronyms:
dry-resin samples.
3.1.1 VCM—Vinyl chloride monomer.
1.5 The values stated SI units are to be regarded as the
3.1.2 RVCM—Residual vinyl chloride monomer.
standard.
3.1.3 PVC—Poly(vinyl chloride).
1.6 This standard does not purport to address all of the
3.1.4 OSHA—Occupational Safety and Health Agency.
safety concerns, if any, associated with its use. It is the
3.1.5 FID—Flame ionization detector.
responsibility of the user of this standard to establish appro-
3.1.6 PID—Photoionization detector.
priate safety and health practices and determine the applica-
3.1.7 HED—Hall electroconductivity detector.
bility of regulatory limitations prior to use.
3.1.8 MHE—Multiple headspace extraction.
NOTE 1—This test method is similar to ISO 6401-1985 in title only. The
technical content is significantly different.
4. Summary of Test Method
4.1 The basis for this test method relates to the vapor
2. Referenced Documents
equilibrium that is established between RVCM, PVC resin, and
2.1 ASTM Standards:
air in a closed system. The RVCM in a PVC resin will
D 3680 Test Method for Residual Vinyl Chloride Monomer
equilibrate in a closed vessel quite rapidly, provided that the
Content of Poly(Vinyl Chloride) Resins, Compounds, and
temperature of the PVC resin is maintained above the glass
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Copolymers by Solution Injection Technique
transition temperature of that specific resin type.
D 4443 Test Method for Analysis for Determining Residual
4.2 After sample equilibration, conventional gas chromato-
Vinyl Chloride Monomer Content in PPB Range in Vinyl
graphic (GC) techniques are used. A constant amount of
Chloride Homo- and Co-Polymers by Headspace Gas
sample headspace vapor is injected into a GC column that is
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Chromatography
packed with a liquid-coated solid support or porous polymer
D 4526 Practice for Determination of Volatiles in Polymers
beads. Sample injection is accomplished by available commer-
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by Headspace Gas Chromatography
cial automatic equipment. Passing through the column in a
E 691 Practice for Conducting an Interlaboratory Study to
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Annual Book of ASTM Standards, Vol 14.02.
This test method is under the jurisdiction of ASTM Committee D-20 on Plastics
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Available from the U.S. Environmental Protection Agency, Research Triangle
and is the direct responsibility of Subcommittee D20.70 on Analytical Methods.
Current edition approved June 15, 1995. Published August 1995. Originally Park, NC 27711.
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published as D 3749 – 78. Last previous edition D 3749 – 93. This edition includes Available from the Superintendent of Documents, Government Printing Office,
revisions to Section 14. Washington, DC 20402.
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Annual Book of ASTM Standards, Vol 06.03. Available from American National Standards Institute, 11 W. 42nd St., 13th
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Annual Book of ASTM Standards, Vol 08.03. Floor, New York, NY 10036.
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D 3749
stream of carrier gas, the vinyl chloride monomer (VCM) is 500 ppm by volume (vppm) are needed, unless multiple
separated from other components which ma
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