AS 1856-1991

1 - AS 1856-1991 ELECTROPLATED COATINGS - SILVER
4 - PREFACE
4 - CONTENTS
5 - FOREWORD
6 - 1 SCOPE
6 - 2 REFERENCED DOCUMENTS
6 - 3 DEFINITIONS
6 - 3.1 Finished state
6 - 3.2 Significant surface
6 - 3.3 Silver, electroplated
6 - 3.4 Strike
6 - 3.5 Undercoat
6 - 4 DESIGNATION
7 - 5 CONDITION OF ITEMS BEFORE COATING
7 - 5.1 Surface finish
7 - 5.2 Preplating condition
7 - 6 REQUIREMENTS FOR UNDERCOATS
7 - 7 REQUIREMENTS FOR THE SILVER COATING
7 - 7.1 General
7 - 7.2 Appearance
8 - 7.3 Thickness of coating
8 - 7.4 Silver content
8 - 7.5 Adhesion
8 - 7.6 Electrical properties
8 - 7.7 Hardness
8 - 7.8 Corrosion tests
9 - 8 TEST SPECIMENS
9 - 9 POST-PLATING HEAT TREATMENT
9 - 10 MARKING
10 - APPENDIX A - PURCHASING GUIDELINES
10 - A1 GENERAL
10 - A2 INFORMATION TO BE SUPPLIED BY THE PURCHASER
11 - APPENDIX B - TYPICAL APPLICATIONS FOR ELECTROPLATED COATINGS OF SILVER
11 - B1 SCOPE
11 - B2 TYPICAL APPLICATIONS
11 - B2. 1 Decorative applications
11 - B2. 2 Engineering applications

Specifies requirements for the thickness, quality and testing of electroplated coatings of silver on metallic and non-metallic materials for decorative, protective, electrical, electronic and other general engineering applications.

This Standard specifies requirements for the thickness, quality and testing of electroplated coatings of silver on metallic and non-metallic materials for decorative, protective, electrical, electronic and other general engineering applications. It does not apply to coatings on screw threads or coatings applied to sheet, strip and wire in the unfabricated form.NOTES:1 This Standard permits the subsequent machining of silver coatings where necessary.2 Advice and recommendations on information to be supplied by the purchaser at the time of enquiry and order are contained in the purchasing guidelines set out in Appendix A.3 Typical applications for electroplated coatings of silver are given in Appendix B.

first published in part as AS K161-1966.
AS CK12 first published 1966.
AS K161-1966 and AS CK12-1966 revised, amalgamated and redesignated AS 1856-1976.
AS 1857 first published 1976.
AS 1856-1976 and AS 1857-1976 revised and amalgamated as AS 1856-1991.