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ASTM D6442-06

(Test Method)

Standard Test Method for Determination of Copper Release Rate From Antifouling Coatings in Substitute Ocean Water

Standard Test Method for Determination of Copper Release Rate From Antifouling Coatings in Substitute Ocean Water

SCOPE
1.1 This test method covers the laboratory determination of the rate at which copper is released from an antifouling (AF) coating in substitute ocean water. The practical limits for quantifying copper release rates by this method are from 1.8 to 500 g cm-2d -1. This range may be extended to 0.2 to 500 g cm-2d -1  if the analytical procedure described in is followed.Note 1
The term "substitute ocean water" is used throughout this standard to refer to artificial or synthetic seawater prepared in accordance with Practice D 1141.
1.2 The procedure contains the preparation steps for the release rate determination of copper from antifouling paints including apparatus, reagents, holding tank conditions, and sampling point details. Analysis for the concentration of copper in substitute ocean water requires the accurate determination of copper at the low parts g L-1 (parts per billion, ppb) level. To detect and correct for reagent impurities, acceptable analytical precision standards are necessary. Therefore, the limit of quantitation (LOQ) for copper in substitute ocean water for the analytical method shall be 10 g L-1 (10 ppb) or less. The procedure for determining the LOQ for copper in substitute ocean water for the analytical method is found in .
1.3 A suitable method is described in (graphite furnace atomic absorption spectroscopy, GF-AAS). Other analytical methods may be utilized with relevant procedural changes, as needed, to accommodate selected specific methods. Such methods must meet the limit of quantitation for copper in substitute ocean water of 10 g L-1(10 ppb) or less. See .
1.4 This results of this test method do not reflect environmental copper release rates for antifouling products, and are not suitable for direct use in the process of generating environmental risk assessments, environmental loading estimates, or for establishing release rate limits for regulatory purposes. See also Section 4 on Significance and Use.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 practices and to determine the applicability of regulatory limits prior to use. For specific hazard statements, see Section 7.

General Information

Status
Historical
Publication Date
31-May-2006
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

Relations

Replaces
ASTM D6442-05 - Standard Test Method for Determination of Copper Release Rate From Antifouling Coatings in Substitute Ocean Water
Effective Date
01-Jun-2006
Replaced By
ASTM D6442-06(2012) - Standard Test Method for Determination of Copper Release Rate From Antifouling Coatings in Substitute Ocean Water
Effective Date
01-Jun-2012
Referred By
ASTM D6903-07(2020) - Standard Test Method for Determination of Organic Biocide Release Rate From Antifouling Coatings in Substitute Ocean Water
Effective Date
01-Jun-2006

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ASTM D6442-06 - Standard Test Method for Determination of Copper Release Rate From Antifouling Coatings in Substitute Ocean WaterASTM D6442-06 - Standard Test Method for Determination of Copper Release Rate From Antifouling Coatings in Substitute Ocean Water
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ASTM D6442-06 - Standard Test Method for Determination of Copper Release Rate From Antifouling Coatings in Substitute Ocean Water
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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: D6442 − 06
StandardTest Method for
Determination of Copper Release Rate From Antifouling
1
Coatings in Substitute Ocean Water
This standard is issued under the fixed designation D6442; 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* 1.5 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
1.1 This test method covers the laboratory determination of
only.
the rate at which copper is released from an antifouling (AF)
1.6 This standard does not purport to address all of the
coating in substitute ocean water. The practical limits for
safety concerns, if any, associated with its use. It is the
quantifying copper release rates by this method are from 1.8 to
-2 -1
responsibility of the user of this standard to establish appro-
500 µg cm d . This range may be extended to 0.2 to 500 µg
-2 -1
priate safety practices and to determine the applicability of
cm d iftheanalyticalproceduredescribedinAppendixX1is
regulatory limits prior to use. For specific hazard statements,
followed.
see Section 7.
NOTE 1—The term “substitute ocean water” is used throughout this
standard to refer to artificial or synthetic seawater prepared in accordance
2. Referenced Documents
with Practice D1141.
2
2.1 ASTM Standards:
1.2 The procedure contains the preparation steps for the
D1005 Test Method for Measurement of Dry-Film Thick-
release rate determination of copper from antifouling paints
ness of Organic Coatings Using Micrometers
including apparatus, reagents, holding tank conditions, and
D1141 Practice for the Preparation of Substitute Ocean
samplingpointdetails.Analysisfortheconcentrationofcopper
Water
insubstituteoceanwaterrequirestheaccuratedeterminationof
-1
D1193 Specification for Reagent Water
copper at the low parts µg L (parts per billion, ppb) level. To
detect and correct for reagent impurities, acceptable analytical
3. Summary of Test Method
precision standards are necessary. Therefore, the limit of
3.1 The candidate paint is applied to cylindrical test speci-
quantitation (LOQ) for copper in substitute ocean water for the
-1
mens. The coated specimens are placed in a tank of substitute
analytical method shall be 10 µg L (10 ppb) or less. The
-1
ocean water where the copper levels are kept below 100 µg L
procedure for determining the LOQ for copper in substitute
by circulating the substitute ocean water through a suitable
ocean water for the analytical method is found in Annex A2.
filtration system (see 5.3). At specified intervals, each speci-
1.3 Asuitable method is described in Appendix X1 (graph-
men is placed in 1500 mL of substitute ocean water (see
ite furnace atomic absorption spectroscopy, GF-AAS). Other
Section 9 for details) and rotated at 60 revolutions per minute
analytical methods may be utilized with relevant procedural
(rpm) for 1 h (or less, see 9.8 for further explanation and
changes,asneeded,toaccommodateselectedspecificmethods.
instruction). The rate of copper release from the paint is
Such methods must meet the limit of quantitation for copper in
determined by measuring copper concentrations of the substi-
-1
substitute ocean water of 10 µg L (10 ppb) or less. See 1.2.
tute ocean water in the individual measuring containers.
1.4 This results of this test method do not reflect environ-
3.2 Appendix X1 provides an analytical procedure for
mental copper release rates for antifouling products, and are
measuring copper concentrations in substitute ocean water.
not suitable for direct use in the process of generating
environmental risk assessments, environmental loading esti-
4. Significance and Use
mates, or for establishing release rate limits for regulatory
4.1 This test method is designed to provide a laboratory
purposes. See also Section 4 on Significance and Use.
procedure to quantify and characterize the release rates of
copperfromantifoulingcoatingsinsubstituteoceanwaterover
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
2
Subcommittee D01.45 on Marine Coatings. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 1, 2006. Published August 2006. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1999. Last previous edition approved in 2005 as D6442 - 05. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D6442-06. the ASTM website.
*A Summary of Changes section appears at th
...

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