ASTM-C538 › Historical Revision Information
Standard Test Method for Color Retention of Red, Orange, and Yellow Porcelain Enamels
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Scope
1.1 This test method covers only porcelain enamels containing the cadmium-sulfide or cadmium sulfo-selenide types of pigments. The purpose of the test is to detect those red, yellow, orange, and some green porcelain enamels that are likely to experience appreciable color changes upon exposure to atmospheric corrosion.
Significance and Use
Correlation between results of this test and outdoor exposure tests of porcelain enamels colored with cadmium sulfo-selenide pigment shows that the cupric sulfate test is an effective indicator of the tendency for such coatings to experience appreciable color changes during weathering. The cupric sulfate test is considered useful for specification acceptance, quality control, and research and development purposes.
Keywords
Color-permanence; Porcelain enamel products; color retention of red/orange/yellow porcelain enamels, test; ICS Number Code 25.220.50 (Enamels)
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02.05 (Metallic and Inorganic Coatings; Metal Powders and Metal Powder Products)
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Document Number
ASTM-C538-83(2004)e1
Revision Level
1983 R04(E1) EDITION
Status
Superseded
Modification Type
Reapproval with Ed Change
Publication Date
Sept. 1, 2004
Document Type
Test Method
Page Count
2 pages
Committee Number
B08.12