ASTM D2613-01

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D2613–01
Standard Test Method for Calcium or Zinc in Paint Driers by
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EDTA Method
This standard is issued under the fixed designation D 2613; 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 6. Reagents
1.1 This test method covers a titrimetric determination of 6.1 Purity of Reagents—Reagent grade chemicals shall be
calcium in liquid calcium driers and zinc in liquid zinc driers used in all tests. Unless otherwise indicated, it is intended that
that can be dissolved in a toluene-alcohol mixture and utilizes all reagents shall conform to the specifications of the Commit-
the disodium salt of ethylenediaminetetraacetic acid dihydrate tee onAnalytical Reagents of theAmerican Chemical Society,
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(EDTA). where such specifications are available. Other grades may be
1.2 This test method is not applicable to drier blends. used, provided it is first ascertained that the reagent is of
1.3 All cations that can be titrated with EDTA in alkaline sufficiently high purity to permit its use without lessening the
media interfere and must not be present in the sample. accuracy of the determination.
1.4 This standard does not purport to address all of the 6.2 Purity of Water—Unless otherwise indicated, references
safety concerns, if any, associated with its use. It is the to water shall be understood to mean reagent water conforming
responsibility of the user of this standard to establish appro- to Type II of Specification D 1193.
priate safety and health practices and determine the applica- 6.3 Buffer Solution—Add 350 mL of concentrated ammo-
bility of regulatory limitations prior to use. nium hydroxide (NH OH, sp gr 0.90) to 54 g of ammonium
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chloride (NH Cl) and dilute to 1 L with water.
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2. Referenced Documents
6.4 EDTA, Standard Solution (0.05 M)— Weigh 18.62 g of
2.1 ASTM Standards:
EDTA, dissolve in water and dilute to 1 L. Store in a
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D 600 Specification for Liquid Paint Driers polyethylene or borosilicate glass bottle.
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D 1193 Specification for Reagent Water
6.5 Indicator Mixture—Triturate 0.2 g of Eriochrome
E 180 Practice for Determining the Precision of ASTM Black-T and 100 g of sodium chloride (NaCl) and store the
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Methods forAnalysis and Testing of Industrial Chemicals
mixture in a tightly stoppered bottle. This mixture remains
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E 300 Practice for Sampling Industrial Chemicals stable for several years.
6.6 Zinc Chloride, Standard Solution (0.05 M)—Weigh
3. Summary of Test Method
3.2690 g of zinc metal to 0.5 mg and dissolve in 50 mL of
3.1 The liquid calcium or zinc drier is dissolved in toluene
dilute hydrochloric acid (14 mL of concentrated HCl (sp gr
and ethyl alcohol and treated with an excess of standard EDTA
1.42) to 36 mL of water). Warm if necessary. Dilute to 1 L in
solution. The excess is titrated with a standard zinc chloride
a volumetric flask.
solution using Eriochrome Black-T as the indicator.
7. Sampling
4. Significance and Use
7.1 Take a small sample of liquid drier from bulk using the
4.1 This test method may be used to confirm the stated
procedures in Practice E 300 appropriate for the size of the
calcium or zinc content of pure liquid calcium or zinc driers
container: Section 19 for tanks and tank cars or Section 23 for
soluble in toluene-alcohol and manufactured for use by the
drums and cans.
coatings industry.
NOTE 1—Liquid driers are normally homogeneous so that only simple
physicaltests,suchasspecificgravityorsolidscontent,ontopandbottom
5. Apparatus
samples from tanks, are required to confirm that separation has not
5.1 Centrifuge, capable of developing 1000 to 2000 g.
occurred.Agitate drums in accordance with the section on Tube Sampling
of Practice E 300.
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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
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Subcommittee D01.21 on Chemical Analysis of Paints and Paint Materials. Reagent Chemicals, American Chemical Society Specifications, American
Current edition approved Jan. 10, 2001. Published March 2001. Originally Chemical Society, Washington, DC. For suggestions on the testing of reagents not
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published as D 2613 – 67 T. Last previous edition D 2613 – 85 (1994) . listed by the American Chemical Society, see Analar Standards for Laboratory
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Annual Book of ASTM Standards, Vol 06.04. Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
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Annual Book of ASTM Standards, Vol 11.01. and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
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Annual Book of ASTM Standards, Vol 15.05. MD.
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