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ASTM D6632-01

(Test Method)

Standard Test Method for Total Copper in Antifouling Paints (Withdrawn 2010)

Standard Test Method for Total Copper in Antifouling Paints (Withdrawn 2010)

SIGNIFICANCE AND USE
This test method allows the accurate determination of copper content in formulated paints as a means of verifying composition (see Test Methods D 283).
SCOPE
1.1 This test method is for the analytical determination of copper in liquid samples of antifouling coatings. The procedure outlines in detail equipment, reagents, and necessary steps to satisfactorily determine the concentration of copper in paint. Conversion to specific copper compounds can be made by appropriate gravimetric factors.
1.2 The values stated in SI units are to be regarded as standard. The inch-pound units given in parenthesis are for information only.
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.
WITHDRAWN RATIONALE
This test method is for the analytical determination of copper in liquid samples of antifouling coatings. The procedure outlines in detail equipment, reagents, and necessary steps to satisfactorily determine the concentration of copper in paint. Conversion to specific copper compounds can be made by appropriate gravimetric factors.
Formerly under the jurisdiction of Committee D01 on Paint and Related Coatings, Materials, and Applications, this test method was withdrawn in January 2010 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

Status
Withdrawn
Publication Date
09-Feb-2001
Withdrawal Date
30-Jan-2010
ICS
87.040 - Paints and varnishes
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.45 - Marine Coatings
Current Stage
Ref Project

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ASTM D6632-01 - Standard Test Method for Total Copper in Antifouling Paints (Withdrawn 2010)ASTM D6632-01 - Standard Test Method for Total Copper in Antifouling Paints (Withdrawn 2010)
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ASTM D6632-01 - Standard Test Method for Total Copper in Antifouling Paints (Withdrawn 2010)
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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:D6632–01
Standard Test Method for
Total Copper in Antifouling Paints
This standard is issued under the fixed designation D6632; 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 5. Apparatus
1.1 This test method is for the analytical determination of 5.1 Pyrex Beakers, tall-form, 400-mL with spout.
copperinliquidsamplesofantifoulingcoatings.Theprocedure 5.2 Magnetic Stirrer and TFE-fluorocarbon-coated stirring
outlines in detail equipment, reagents, and necessary steps to bar.
satisfactorily determine the concentration of copper in paint. 5.3 D.C. Power Supply to deliver approximately 3 V and
Conversion to specific copper compounds can be made by approximately 2 A.
appropriate gravimetric factors. 5.4 Two Electrode Holders.
1.2 The values stated in SI units are to be regarded as 5.5 Platinum Gauze Electrodes, cathode and anode.
standard. The inch-pound units given in parenthesis are for 5.6 Glass Filter Funnels.
information only. 5.7 Hot Plate.
1.3 This standard does not purport to address all of the 5.8 Analytical Balance.
safety concerns, if any, associated with its use. It is the 5.9 Graduated Cylinders.
responsibility of the user of this standard to establish appro-
6. Reagents and Materials
priate safety and health practices and determine the applica-
6.1 Concentrated Nitric Acid (HNO ), reagent-grade.
bility of regulatory limitations prior to use.
6.2 Perchloric Acid (HClO ), 69 to 72 %, reagent-grade.
2. Referenced Documents
6.3 Deionized or Distilled Water.
2.1 ASTM Standards: 6.4 Alcohol or Acetone.
D283 Test Methods for Chemical Analysis of Cuprous 6.5 Ammonium Sulfate.
Oxide and Copper Pigments 6.6 Filter Paper, Glass Fiber, approximately 1.5 µm, of
suitable diameter to fit funnel.
3. Summary of Test Method
7. Procedure
3.1 Samples of the paint are weighed into beakers and
solvent is allowed to evaporate. Dry ashing is done at 600°C to 7.1 Thoroughly mix the paint and place a U-shaped stirrer
destroy organic materials, followed by acid digestion. Solu- into the container and while stirring, transfer and accurately
tions are diluted, filtered to remove insolubles and electrolyzed weight approximately 1 g into each of two tared 400-mL
todepositthecopperontoplatinumgauze.Recoveredcopperis beakers.
determined as percentage of sample weight and calculated to 7.2 Allow samples to dry overnight, vaporizing solvent.
original compound. 7.3 Placebeakersintoamufflefurnaceanddryashat600°C
overnight to remove acid resistant organic matter.
4. Significance and Use
7.4 In a laboratory hood, add 10 mL of concentrated nitric
4.1 This test method allows the accurate determination of
acid to each beaker to dissolve the copper-based ingredient,
copper content in formulated paints as a means of verifying heating on a hot plate to dissolve sample. Boil for several
composition (see Test Methods D283).
minutes with watch glass in place to reflux acid.
7.5 Remove from hot plate and add 10 mL of perchloric
acid, fume, and reflux on hot plate for 15 min. If insolubles
This test method is under the jurisdiction of ASTM Committee D01 on Paint
remain, dilute to approximately 100 mL with water and filter
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.45 on Marine Coatings. through a glass fiber filter having approximately 1.5–µm
Current edition approved Feb. 10, 2001. Published April 2001. DOI: 10.1520/
particle retention into a 400-mL tall-form beaker. If no in-
D6632-01.
solubles are present, dilute directly to approximately 200 mL
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and continue as in 7.7.
contact ASTM Customer Service at
...

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SCOPE
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FIG. 1 Alignment of Panels for Scrubbing
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1.1 This test method covers an accelerated procedure for determining the resistance of paints to erosion caused by scrubbing. (Note: The term wet abrasion is sometimes used for scrubbing, and wet abrasion resistance or scrubbability for scrub resistance.) Although scrub resistance tests are intended primarily for interior coatings, they are sometimes used with exterior coatings as an additional measure of film performance.  
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SCOPE
1.1 This test method covers a procedure for rapidly deforming by impact a coating film and its substrate and for evaluating the effect of such deformation.  
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