DR 99383
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Methods of test for metallic and related coatings Method 3.4: Corrosion and related property tests - Thiacetamide anti-tarnish and porosity test
06-30-2017
07-29-1999
Proposes a method for assessing the tarnish resistance of electroplated coatings that form visible sulfides or for estimating porosity in non-tarnishing deposits on metals that form visible sulfides. The method is suitable for evaluating tarnish-preventing treatments applied to coatings of silver, brass or copper and for assessing the degree of porosity in gold alloy coatings on copper alloy basis metal.
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