ASTM-D2222 Standard Test Method for Methanol Extract of Vinyl Chloride Resins

ASTM-D2222 - 2019 EDITION - CURRENT
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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)

83.100 (Cellular materials)

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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