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SJ 1277-1977

Search Result of Chinese Standard: 'SJ 1277-1977'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusRelated Standard
SJ 1277-1977English179 Add to Cart Days<=2 Quality inspection rules for the acceptance of metallic coatings and chemically treated layers Obsolete SJ 1277-1977

   
Detail Information of SJ 1277-1977; SJ1277-1977
Description (Translated English): Quality inspection rules for the acceptance of metallic coatings and chemically treated layers
Sector / Industry: Electronics Industry Standard
Classification of Chinese Standard: L10
Word Count Estimation: 3,000
Date of Issue: 1/3/1978
Date of Implementation: 1/3/1978
Older Standard (superseded by this standard): SJ 43-1964
Regulation (derived from): Industry-Science (2010) No.77
Summary: This standard applies to the appearance of the metal plating and chemical treatment layer, the metal coating hardness, with the polarity of the metal coating porosity, adhesion of the coating and substrate metal, metal plating and chemical treatment layer of corrosion, metal plating and chemical treatment layer The thickness of aluminum and aluminum alloys as well as acceptance of electrical insulation properties.

Related standard:   SJ/Z 9022.1-1987  SJ 2420-1983
   
 
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