ASTM D5594-18

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of the standard as published by ASTM is to be considered the official document.
Designation: D5594 − 98 (Reapproved 2012) D5594 − 18
Standard Test Method for
Determination of the Vinyl Acetate Content of Ethylene-Vinyl
Acetate (EVA) Copolymers by Fourier Transform Infrared
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Spectroscopy (FT-IR)
This standard is issued under the fixed designation D5594; 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 covers infrared procedures for determining the vinyl acetate content of EVA copolymers using pressed
films (Procedure A) or molded plaques (Procedure B) and internal corrections for sample thickness.
1.2 This test method is applicable to the analysis of EVA copolymers containing 0.5 to 55 % vinyl acetate except as specified
in 1.3.
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1.3 Talc interferes with the 1020 cm vinyl acetate band. Resins containing <5 % vinyl acetate and talc are excluded from the
scope of this test method.
1.4 The values stated in SI units are to be regarded as the standard. The values given in bracketsparentheses are provided for
information purposes only.
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 and health practices and determine the applicability of regulatory
limitations prior to use. Specific precautionary statements are given in Section 8.
NOTE 1—This test method is not equivalent to ISO 8985.
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.
2. Referenced Documents
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2.1 ASTM Standards:
E131 Terminology Relating to Molecular Spectroscopy
E168 Practices for General Techniques of Infrared Quantitative Analysis
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
IEEE/ASTM SI-10 Use of the International System of Units (SI): The Modem Metric System
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
2.2 ISO Standard:
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ISO 8985 Plastics—Ethylene/Vinyl Acetate Copolymer Thermoplastics—Determination of Vinyl Acetate
3. Terminology
3.1 Definitions:
3.1.1 Units, symbols, and abbreviations used in this test method appear in Terminology E131 or IEEE/ASTM SI-10.
3.2 Abbreviations:
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This test method is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.70 on Analytical Methods.
Current edition approved April 1, 2012Aug. 1, 2018. Published June 2012August 2018. Originally approved in 1994. Last previous edition approved in 20042012 as
D5594 - 98 (2004).(2012). DOI: 10.1520/D5594-98R12.10.1520/D5594-18.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
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Nicolet 20 S × B, available from Nicolet Instrument Corp., Analytical Division, 5225 Verona Rd., Madison, WI 53711-4495, and Perkin Elmer 1760, a registered
trademark of Perkin-Elmer Corp., 761 Main Ave., Norwalk, CT 06859-0156, or equivalents, have been found suitable for this purpose.
*A Summary of Changes section appears at the end of this standard
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D5594 − 18
3.2.1 EVA—ethylene-vinyl acetate copolymer.
3.2.2 PTFE—tetrafluorethylene polymer.
3.2.3 FT-IR—Fourier transform infrared.
4. Summary of Test Method
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4.1 The vinyl acetate content is measured using infrared absorption band at 1020 cm (0.5 to 5 % vinyl acetate) or 609 cm
(5 to 55 % vinyl acetate).
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4.2 Sample thickness is measured internally using an ethylene infrared absorption band at 720 cm (28 to 55 % vinyl acetate),
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2020 cm (0.5 to 28 % vinyl acetate),
...