ASTM-D2222 › Historical Revision Information
Standard Test Method for Methanol Extract of Vinyl Chloride Resins
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Scope
1.1 This test method covers the determination of the methanol extract, or nonvolatile methanol-soluble portion, of vinyl chloride resins.
1.2 The methanol extract test is most commonly employed with paste- or dispersion-type vinyl resins intended for organosol or plastisol applications. The major ingredient removed is the soap system employed in the polymerization reaction.
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 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.
Note 1: There is no known ISO equivalent to this standard.
1.5 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.
Significance and Use
5.1 The methanol extract test is most commonly employed with paste- or dispersion-type vinyl resins intended for organosol or plastisol applications. The test result is a quantitative measure of the methanol-soluble, nonvolatile, essentially nonpolymeric content of the virgin, unmodified resin. The major ingredient removed is the soap system employed in the polymerization reaction; methanol extract provides a measure of lot-to-lot uniformity of the resin in this respect.
Keywords
dispersion PVC resin; methanol extract; organosol; paste PVC resin; plastisol;; ICS Number Code 83.080.10 (Thermosetting materials)
To find similar documents by ASTM Volume:
08.01 (Plastics (I): D256 - D3159)
To find similar documents by classification:
83.080.10 (Thermosetting materials Including ebonite Silicones, see 71.100.55)
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Document Number
ASTM-D2222-19
Revision Level
2019 EDITION
Status
Current
Modification Type
Revision
Publication Date
May 9, 2019
Document Type
Test Method
Page Count
2 pages
Committee Number
D20.15