ASTM D2193-06

Standard Test Method for Hydroquinone in Vinyl Acetate

SIGNIFICANCE AND USE
This test method provides a measurement of inhibitor level in vinyl acetate. The results of these measurements can be used for specification acceptance.
SCOPE
1.1 This test method covers the determination of hydroquinone in the range from 1 to 20 ppm in refined, commercially available, vinyl acetate.
1.2 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with Practice E 29.
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 and health practices and determine the applicability of regulatory limitations prior to use.
1.5 For hazard information and guidance, see the supplier's Material Safety Data Sheet.

General Information

• Status: Historical
• Publication Date: 31-May-2006
• ICS: 71.080.99 - Other organic chemicals
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.35 - Solvents, Plasticizers, and Chemical Intermediates

Relations

• Replaces: ASTM D2193-97(2001) - Standard Test Method for Hydroquinone in Vinyl Acetate
• Effective Date: 01-Jun-2006
• Referred By: ASTM D2190-07(2021) - Standard Specification for Vinyl Acetate
• Effective Date: 01-Jun-2006

Standards Content (Sample)

Designation: D2193 − 06
Standard Test Method for
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Hydroquinone in Vinyl Acetate
This standard is issued under the fixed designation D2193; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 4. Significance and Use
1.1 This test method covers the determination of hydroqui- 4.1 This test method provides a measurement of inhibitor
none in the range from 1 to 20 ppm in refined, commercially levelinvinylacetate.Theresultsofthesemeasurementscanbe
available, vinyl acetate.
used for specification acceptance.
1.2 For purposes of determining conformance of an ob-
5. Apparatus
served or a calculated value using this test method to relevant
specifications, test result(s) shall be rounded off “to the nearest
5.1 Buret, 25-mL, graduated in 0.1-mL subdivisions.
unit” in the last right-hand digit used in expressing the
5.2 Beakers, 50 and 600-mL capacity.
specification limit, in accordance with Practice E29.
5.3 Volumetric Flask, 1000-mL capacity.
1.3 The values stated in SI units are to be regarded as
5.4 Erlenmeyer Flasks, 100 and 250-mL capacity.
standard. No other units of measurement are included in this
standard.
5.5 Nitrogen Cylinder, or source of clean air.
1.4 This standard does not purport to address all of the
5.6 Pipets, 10 and 50-mL capacity.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6. Reagents
priate safety and health practices and determine the applica-
6.1 Purity of Reagents—Reagent grade chemicals shall be
bility of regulatory limitations prior to use.
used in all tests. Unless otherwise indicated, it is intended that
1.5 For hazard information and guidance, see the supplier’s
all reagents shall conform to the specifications of the Commit-
Material Safety Data Sheet.
tee onAnalytical Reagents of theAmerican Chemical Society,
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2. Referenced Documents where such specifications are available. Other grades may be
used provided it is first ascertained that the reagent is of
2
2.1 ASTM Standards:
sufficiently high purity to permit its use without lessening the
D1193Specification for Reagent Water
accuracy of the determination.
E29Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications 6.2 Purity of Water—Unless otherwise indicated, references
towatershallbeunderstoodtomeanreagentwaterconforming
3. Summary of Test Method to Type IV of Specification D1193.
3.1 Thevinylacetateisevaporatedatroomtemperatureina 6.3 Ceric Acid Sulfate, Standard Solution (0.002 N)—
stream of inert gas or clean air to minimize the loss of
Dissolve 1.096 g of ceric ammonium nitrate ((NH ) -
4 2
hydroquinone by evaporation. The hydroquinone is dissolved Ce(NO ) )in28.0mLofconcentratedsulfuricacid(H SO,sp
3 6 2 4
in water and titrated with dilute standardized ceric acid sulfate gr 1.84) contained in a 50-mL beaker. Slowly pour the ceric
using diphenylamine as indicator. solution, while stirring, into 200 mL of water contained in a
600-mL beaker. When solution is complete, transfer this
mixture to a 1000-mL volumetric flask and dilute to the mark
with water.
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This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.35 on Solvents, Plasticizers, and Chemical Intermediates .
Current edition approved June 1, 2006. Published June 2006. Originally
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approved in 1963. Last previous edition approved in 2001 as D2193–97(2001). Reagent Chemicals, American Chemical Society Specifications , American
DOI: 10.1520/D2193-06. Chemical Society, Washington, DC. For suggestions on the testing of reagents not
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or listed by the American Chemical Society, see Analar Standards for Laboratory
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Standards volume information, refer to the standard’s Document Summary page on and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
the ASTM website. MD.
*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
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D2193 − 06
6.4 Diphenylamine Indicator Solution—Dissolve 0.1 g of 9. Calculation
diphenylamine in 100 mLof H SO (sp gr 1.84) and store this
2 4
9.1 Calculate the parts per million of hydroquinone, H,in
solution in a brown glass bottle.
the sample as follows:
6.5 Hydroquinone Standard—Dissolve 200.0 mg of hydro-
H 5 V 3 F /S 31000 (1)
@~ ! #
quinone, weighed to the
...