ASTM-D478 › Historical Revision Information
Standard Specification for Zinc Yellow (Zinc Chromate) Pigments

ASTM-D478 - 2002 R19 EDITION - CURRENT
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This specification covers zinc yellow (zinc chromate) pigments used in rust-inhibiting protective coatings and metal primers for ferrous and non-ferrous metals. The two types of pigments include: Type I and Type II. The pigment shall conform to the required composition for zinc, chromium, sulfates, chlorides, alkaline slats, matter insoluble in acetic acid, moisture and other volatile matter, and coarse particles. The following tests shall be conducted: chemical analysis, coarse particles, and mass color and tinting strength.

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Scope

1.1 This specification covers the pigments commercially known as zinc yellow (zinc chromate).

1.2 Two types are included:

1.2.1 Type I—High-purity, low sulfate and chloride content.

1.2.2 Type II—Regular grade.

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.4 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.

Significance and Use

3.1 Zinc yellow is used in rust-inhibiting protective coatings and metal primers for ferrous and non-ferrous metals.

Keywords

chromatic; inhibitor metal primer; pigment; zinc chromate; zinc yellow;; ICS Number Code 87.060.10 (Pigments and extenders)

To find similar documents by ASTM Volume:

06.03 (Paint -- Pigments, Drying Oils, Polymers, Resins, Naval Stores, Cellulosic Esters, and Ink Vehicles)

To find similar documents by classification:

87.060.10 (Pigments and extenders)

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Document Number

ASTM-D478-02(2019)

Revision Level

2002 R19 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

June 11, 2019

Document Type

Specification

Page Count

2 pages

Committee Number

D01.31