ASTM D2222-19
(Test Method)Standard Test Method for Methanol Extract of Vinyl Chloride Resins
Standard Test Method for Methanol Extract of Vinyl Chloride Resins
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.
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.
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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: D2222 − 19
Standard Test Method for
1
Methanol Extract of Vinyl Chloride Resins
This standard is issued under the fixed designation D2222; 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* 4. Summary of Test Method
1.1 This test method covers the determination of the metha-
4.1 The methanol-soluble materials are extracted from the
nol extract, or nonvolatile methanol-soluble portion, of vinyl
resin in a Soxhlet extractor, the methanol evaporated to
chloride resins.
dryness, and the residue weighed as the weight percent
methanol extract.
1.2 The methanol extract test is most commonly employed
with paste- or dispersion-type vinyl resins intended for organo-
5. Significance and Use
sol or plastisol applications. The major ingredient removed is
the soap system employed in the polymerization reaction.
5.1 The methanol extract test is most commonly employed
with paste- or dispersion-type vinyl resins intended for organo-
1.3 The values stated in SI units are to be regarded as
sol or plastisol applications. The test result is a quantitative
standard. No other units of measurement are included in this
measure of the methanol-soluble, nonvolatile, essentially non-
standard.
polymeric content of the virgin, unmodified resin. The major
1.4 This standard does not purport to address all of the
ingredient removed is the soap system employed in the
safety concerns, if any, associated with its use. It is the
polymerization reaction; methanol extract provides a measure
responsibility of the user of this standard to establish appro-
of lot-to-lot uniformity of the resin in this respect.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
6. Apparatus
NOTE 1—There is no known ISO equivalent to this standard.
6.1 Soxhlet Extractor.
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard- 6.2 Extraction Thimbles, 33 by 94-mm.
ization established in the Decision on Principles for the
6.3 Oven, Constant-Temperature,maintainedat105 63 °C.
Development of International Standards, Guides and Recom-
6.4 Electric Heating Mantle for a 250-mLextractor flask, or
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. electric strip heaters, equipped with a suitable variable trans-
former to control the rate of heating.
2. Referenced Documents
2
2.1 ASTM Standards: 7. Reagents
D883 Terminology Relating to Plastics
7.1 Purity of Reagents—Reagent grade chemicals shall be
D1600 Terminology forAbbreviatedTerms Relating to Plas-
used in all tests. Unless otherwise indicated, it is intended that
tics
all reagents shall conform to the specifications of the Commit-
tee onAnalytical Reagents of theAmerican Chemical Society,
3. Terminology
where such specifications are available. It is possible to use
3.1 Definitions—Definitions are in accordance with Termi-
other grades, provided it is first ascertained that the reagent is
nologies D883 and D1600 unless otherwise indicated.
of sufficiently high purity to permit its use without lessening
the accuracy of the determination.
1
This test method is under the jurisdiction ofASTM Committee D20 on Plastics
and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials
8. Procedure
(Section D20.15.07).
Current edition approved April 1, 2019. Published May 2019. Originally
8.1 Weigh to the nearest 0.001 g approximately 12 g of the
approved in 1963. Last previous edition approved in 2014 as D2222 – 14. DOI:
resin sample into an empty extraction thimble.
10.1520/D2222-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
8.2 Cover the resin in the thimble with a small pad of glass
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
wool to prevent spattering of resin during the extraction and
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. place the thimble in the extractor.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D2222 − 19
8.3 Weigh to the nearest 0.001 g and record the tare weight 9. Calculation
ofaclean,dry,flat-bottom,extractorflaskcontainingaRaschig
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D2222 − 14 D2222 − 19
Standard Test Method for
1
Methanol Extract of Vinyl Chloride Resins
This standard is issued under the fixed designation D2222; 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 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 safety, health, and healthenvironmental 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D883 Terminology Relating to Plastics
D1600 Terminology for Abbreviated Terms Relating to Plastics
3. Terminology
3.1 Definitions—Definitions are in accordance with Terminologies D883 and D1600 unless otherwise indicated.
4. Summary of Test Method
4.1 The methanol-soluble materials are extracted from the resin in a Soxhlet extractor, the methanol evaporated to dryness, and
the residue weighed as the weight percent methanol extract.
5. 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.
6. Apparatus
6.1 Soxhlet Extractor.
6.2 Extraction Thimbles, 33 by 94-mm.
6.3 Oven, Constant-Temperature, maintained at 105 6 3 °C.
1
This test method is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials
(Section D20.15.08).D20.15.07).
Current edition approved Aug. 1, 2014April 1, 2019. Published September 2014May 2019. Originally approved in 1963. Last previous edition approved in 20132014 as
D2222 – 13.D2222 – 14. DOI: 10.1520/D2222-14.10.1520/D2222-19.
2
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.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D2222 − 19
6.4 Electric Heating Mantle for a 250-mL extractor flask, or electric strip heaters, equipped with a suitable variable transformer
to control the rate of heating.
7. Reagents
7.1 Purity of Reagents—Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that all
reagents shall conform to the specifications of the Committee on Analytical Reagents of the American Chemical Society, where
such specifications are available. It is possible to use other grades, provided it is first ascertained that the reagent is of sufficiently
high purity to permit its use without lessening the accuracy of the determination.
8. Procedure
8.1 Weigh to the nearest 0.001 g approximately 12 g of the resin sample into an empty extraction thimble.
8.2 Cover the resin in the thimble with a small pad of glass wool to prevent spattering of
...
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