ASTM D2191-22
(Test Method)Standard Test Method for Acetaldehyde Content of Vinyl Acetate
Standard Test Method for Acetaldehyde Content of Vinyl Acetate
SIGNIFICANCE AND USE
4.1 This test method provides a measurement of acetaldehyde content in vinyl acetate. The results of these measurements can be used for specification acceptance.
SCOPE
1.1 This test method covers the determination of trace quantities of acetaldehyde, in the range from 0.00 to 0.05 %, contained in 99 % grade vinyl acetate.
1.2 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off “to the nearest unit” in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 For hazard information and guidance, see the supplier's Material Safety Data Sheet.
1.5 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 environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements see Section 8.
1.6 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.
General Information
Standards Content (Sample)
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: D2191 − 22
Standard Test Method for
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Acetaldehyde Content of Vinyl Acetate
This standard is issued under the fixed designation D2191; 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 Determine Conformance with Specifications
1.1 This test method covers the determination of trace
3. Summary of Test Method
quantities of acetaldehyde, in the range from 0.00 to 0.05 %,
3.1 The acetaldehyde present in the specimen is reacted
contained in 99 % grade vinyl acetate.
with a measured excess of sodium bisulfite. The amount of
1.2 For purposes of determining conformance of an ob-
sodium bisulfite consumed, determined by titrating the excess
served or a calculated value using this test method to relevant
with a standard iodine solution, is a measure of the acetalde-
specifications, test result(s) shall be rounded off “to the nearest
hyde present in the vinyl acetate.
unit” in the last right-hand digit used in expressing the
4. Significance and Use
specification limit, in accordance with the rounding-off method
of Practice E29.
4.1 This test method provides a measurement of acetalde-
hyde content in vinyl acetate. The results of these measure-
1.3 The values stated in SI units are to be regarded as
ments can be used for specification acceptance.
standard. No other units of measurement are included in this
standard.
5. Interference
1.4 For hazard information and guidance, see the supplier’s
5.1 Ketonesandotheraldehydes,ifpresent,causeapositive
Material Safety Data Sheet.
interference.
1.5 This standard does not purport to address all of the
6. Apparatus
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6.1 Buret, 50-mL capacity, graduated in 0.1-mL
priate safety, health, and environmental practices and deter-
subdivisions, with a funnel or flared top and a ground-glass
mine the applicability of regulatory limitations prior to use.
stopcock.
For specific hazard statements see Section 8.
6.2 Erlenmeyer Flask, 500-mL capacity, glass-stoppered.
1.6 This international standard was developed in accor-
6.3 Pipet, 50-mL capacity.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
6.4 Pipet, 100-mL capacity.
Development of International Standards, Guides and Recom-
7. Reagents
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
7.1 Purity of Reagents—Unless otherwise indicated, it is
intended that all reagents shall conform to the specifications of
2. Referenced Documents
theCommitteeonAnalyticalReagentsoftheAmericanChemi-
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2.1 ASTM Standards: cal Society, where such specifications are available. Other
D1193 Specification for Reagent Water
grades may be used provided that it is first ascertained that the
E29 Practice for Using Significant Digits in Test Data to reagent is of sufficiently high purity to permit its use without
lessening the accuracy of the determination.
7.2 Purity of Water—Unless otherwise indicated, references
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This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of to water shall be understood to mean reagent water as defined
Subcommittee D01.35 on Solvents, Plasticizers, and Chemical Intermediates.
by Type IV of Specification D1193.
Current edition approved Jan. 1, 2022. Published January 2022. Originally
approved in 1963. Last previous edition approved in 2012 as D2191 – 06 (2012)
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which was withdrawn January 2021 and reinstated in January 2022. DOI: 10.1520/ ACS Reagent Chemicals, Specifications and Procedures for Reagents and
D2191-22. Standard-Grade Reference Materials, American Chemical Society, Washington,
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or DC. For suggestions on the testing of reagents not listed by theAmerican Chemical
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Society, see Analar Standards for Laboratory Chemicals, BDH Ltd., Poole, Dorset,
Standards volume information, refer to the standard’s Document Summary page on U.K., and the United States Pharmacopeia and National Formulary, U.S. Pharma-
the ASTM website. copeial Convention, Inc. (USPC), Rockville, MD.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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