ASTM D2222-94(2004)

Standard Test Method for Methanol Extract of Vinyl Chloride Resins

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 values stated in SI units are to be regarded as standard.
1.3 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.
Note 1—There is no ISO standard covering the primary subject matter of this ASTM standard.

General Information

• Status: Historical
• Publication Date: 30-Apr-2004
• ICS: 83.080.10 - Thermosetting materials
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.15 - Thermoplastic Materials

Relations

• Replaces: ASTM D2222-94(1999) - Standard Test Method for Methanol Extract of Vinyl Chloride Resins
• Effective Date: 01-May-2004
• Replaced By: ASTM D2222-09 - Standard Test Method for Methanol Extract of Vinyl Chloride Resins
• Effective Date: 01-Sep-2009

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D2222–94 (Reapproved 2004)
Standard Test Method for
Methanol Extract of Vinyl Chloride Resins
This standard is issued under the fixed designation D 2222; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope measure of the methanol-soluble, nonvolatile, essentially non-
polymeric content of the virgin, unmodified resin. The major
1.1 This test method covers the determination of the metha-
ingredient removed is the soap system employed in the
nol extract, or nonvolatile methanol-soluble portion, of vinyl
polymerization reaction; methanol extract provides a measure
chloride resins.
of lot-to-lot uniformity of the resin in this respect.
1.2 The values stated in SI units are to be regarded as
standard.
6. Apparatus
1.3 This standard does not purport to address all of the
6.1 Soxhlet Extractor.
safety concerns, if any, associated with its use. It is the
6.2 Extraction Thimbles, 33 by 94-mm.
responsibility of the user of this standard to establish appro-
6.3 Oven, Constant-Temperature, maintained at 105 6 3°C.
priate safety and health practices and determine the applica-
6.4 Electric Heating Mantle for a 250-mL extractor flask,
bility of regulatory limitations prior to use.
or electric strip heaters, equipped with a suitable variable
NOTE 1—There are no ISO standard covering the primary subject
transformer to control the rate of heating.
matter of this ASTM standard.
7. Reagents
2. Referenced Documents
7.1 Purity of Reagents—Reagent grade chemicals shall be
2.1 ASTM Standards:
used in all tests. Unless otherwise indicated, it is intended that
D 883 Terminology Relating to Plastics
all reagents shall conform to the specifications of the Commit-
D 1600 Terminology of Abbreviated Terms Relating to
tee onAnalytical Reagents of theAmerican Chemical Society,
Plastics
where such specifications are available. Other grades may be
used, provided it is first ascertained that the reagent is of
3. Terminology
sufficiently high purity to permit its use without lessening the
3.1 Definitions: Definitions are in accordance with Termi-
accuracy of the determination.
nologies D 883 and D 1600 unless otherwise indicated.
8. Procedure
4. Summary of Test Method
8.1 Weigh to the nearest 0.001 g approximately 12 g of the
4.1 The methanol-soluble materials are extracted from the
resin sample into an empty extraction thimble.
resin in a Soxhlet extractor, the methanol evaporated to
8.2 Cover the resin in the thimble with a small pad of glass
dryness, and the residue weighed as the weight percent
wool to prevent spattering of resin during the extraction and
methanol extract.
place the thimble in the extractor.
8.3 Weigh to the nearest 0.001 g and record the tare weight
5. Significance and Use
ofaclean,dry,flat-bottom,extractorflaskcontainingaRaschig
5.1 The methanol extract test is most commonly employed
ring.
with paste- or dispersion-type vinyl resins intended for orga-
nosol or plastisol applications. The test result is a quantitative
Corning Glass Co. No. 3840, Fisher Scientific Co. No. 9-556 (Size B), or
This test method is under the jurisdiction ofASTM Committee D20 on Plastics equivalent have been found satisfactory for this purpose.
and is the direct responsibility of Subcommittee D20.15 onThermoplastic Materials Fisher Scientific Co. No. 9-655, or equivalent, has been found satisfactory for
(Section D20.15.08). this purpose.
Current edition approved May 1, 2004. Published June 2004. Originally Reagent Chemicals, American Chemical Society Speci
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