ASTM D964-03(2020)

Standard Specification for Metallic Copper Powder for Use in Antifouling Paints

ABSTRACT
This specification covers metallic copper powder for use in antifouling paints. The pigment shall consist essentially of finely divided copper metal. The copper, and coarse particle shall be tested to meet the requirements prescribed.
SCOPE
1.1 This specification covers copper powder for use in antifouling paints.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-May-2020
• ICS: 87.060.99 - Other paint ingredients
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.31 - Pigment Specifications

Relations

• Replaces: ASTM D964-03(2014) - Standard Specification for Metallic Copper Powder for Use in Antifouling Paints
• Effective Date: 01-Jun-2020
• Refers: ASTM D283-13(2019) - Standard Test Methods for Chemical Analysis of Cuprous Oxide and Copper Pigments
• Effective Date: 01-Jun-2019
• Refers: ASTM D283-13 - Standard Test Methods for Chemical Analysis of Cuprous Oxide and Copper Pigments
• Effective Date: 01-Nov-2013
• Refers: ASTM D185-07 - Standard Test Methods for Coarse Particles in Pigments
• Effective Date: 01-Jul-2007
• Refers: ASTM D185-84(1999) - Standard Test Methods for Coarse Particles in Pigments, Pastes, and Paints
• Effective Date: 10-May-1999
• Refers: ASTM D283-84(1999) - Standard Test Methods for Chemical Analysis of Cuprous Oxide and Copper Pigments (Withdrawn 2008)
• Effective Date: 10-May-1999

Overview

ASTM D964-03(2020) is the internationally recognized standard specification for metallic copper powder intended for use in antifouling paints. Developed by ASTM International, this standard outlines the quality and testing requirements to ensure copper powder used in marine coatings meets stringent performance criteria. Metallic copper powder is a vital pigment in antifouling paints, offering essential protection against marine organism growth on ship hulls and other submerged surfaces.

This specification defines the acceptable chemical composition and particle size distribution for copper powder, ensuring consistent quality and efficacy in antifouling applications. The standard provides a framework for manufacturers, suppliers, and end-users to verify that copper powder meets the necessary requirements for optimal performance in marine environments.

Key Topics

• Scope and Purpose

  • Applies to metallic copper powder for antifouling paint formulations
  • Explicit values provided in inch-pound units, with SI units for reference

• Composition Requirements

  • Copper content must be a minimum of 99 percent
  • Coarse particles (325 mesh) limited to a maximum of 1.0 percent

• Sampling and Quality Control

  • Sampling methods ensure representative analysis of production lots or shipments
  • Composite sampling options are available based on customer requirements

• Test Methods

  • Copper content determined per ASTM D283
  • Coarse particles measured using ASTM D185

• International Compliance

  • Developed in accordance with World Trade Organization (WTO) principles for international standardization

Applications

ASTM D964-03(2020) copper powder is primarily used as a pigment in antifouling paints designed to prevent biofouling on marine vessels and submerged structures. The stringent requirements for particle size and copper purity are critical for:

• Marine Industries: Used on ship hulls, underwater pipelines, and offshore platforms to inhibit the growth of barnacles, algae, and other marine organisms.
• Paint and Coatings Manufacturers: Ensures the consistent performance of antifouling formulations.
• Quality Assurance: Provides guidance for suppliers and purchasers to verify that copper pigments meet established purity and granularity specifications.
• Environmental Protection: By ensuring effective antifouling performance, this standard contributes to improved fuel efficiency and reduced emissions in marine transportation.

Related Standards

Reference to other ASTM standards helps provide a comprehensive quality management approach for pigment production and testing:

• ASTM D185 - Test Methods for Coarse Particles in Pigments: Essential for measuring the fraction of coarse particles in copper powder.
• ASTM D283 - Test Methods for Chemical Analysis of Cuprous Oxide and Copper Pigments: Used for verifying copper content in the powder.

Other relevant areas include:

• ISO and international standards on marine coatings and related materials
• WTO principles for international standards development

Summary

Complying with ASTM D964-03(2020) is essential for suppliers, manufacturers, and users of metallic copper powder in antifouling paints, ensuring products meet established chemical and physical requirements. This standard enhances the durability and effectiveness of marine coatings, supporting industry best practices and international trade. For more details and official documentation, visit the ASTM International website.

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D964 −03 (Reapproved 2020)
Standard Specification for
Metallic Copper Powder for Use in Antifouling Paints
This standard is issued under the fixed designation D964; 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 3. Composition
1.1 This specification covers copper powder for use in 3.1 The pigment shall consist essentially of finely divided
antifouling paints. copper metal and shall conform to the following requirements:
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
Copper, min, (Percent) 99
Coarse particles, 325 Mesh, max, (Percent) 1.0
and are not considered standard.
1.3 This international standard was developed in accor-
4. Sampling
dance with internationally recognized principles on standard-
4.1 Two samples shall be taken at random from different
ization established in the Decision on Principles for the
packages from each lot, batch, day’s pack, or other unit of
Development of International Standards, Guides and Recom-
production in a shipment. When no markings distinguishing
mendations issued by the World Trade Organization Technical
between units of production appear, samples shall be taken
Barriers to Trade (TBT) Committee.
from different packages in the ratio of two samples for each 10
2. Referenced Documents
000 lb (5000 kg), except that for shipments of less than 10 000
lb two samples shall be taken. At the option of the purchaser,
2.1 ASTM Standards:
the samples may be tested separately or after blending in equal
D185 Test Methods for Coarse Particles in Pigments
quantities the samples from the same production unit to form a
D283 Test Methods for Chemical Analysis of Cuprous
composite sample.
Oxide and Copper Pigments
5. Test Methods
This specification is under the jurisdiction of ASTM C
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