I.S. EN ISO 4521:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Information to be supplied by the
  purchaser to the electroplater
  4.1 Essential information
  4.2 Additional information
5 Designation
  5.1 General
  5.2 Designation specifications
  5.3 Designation of the basis material
  5.4 Designation of heat treatment requirements
  5.5 Examples of designations
6 Requirements
  6.1 General
  6.2 Appearance
  6.3 Thickness
  6.4 Porosity
  6.5 Accelerated corrosion testing
  6.6 Composition
  6.7 Stress-relief heat treatment prior to
       electroplating
  6.8 Hydrogen-embrittlement-relief heat
       treatment after electroplating
  6.9 Adhesion
  6.10 Electrical properties
  6.11 Microhardness
  6.12 Solderability
  6.13 Wear resistance
  6.14 Ductility
  6.15 Undercoats
  6.16 Freedom from contamination
  6.17 Anti-tarnish treatments
7 Sampling
Annex A (normative) - Requirements for undercoats
Annex B (normative) - Methods of measuring the thickness of
                      electroplated silver and silver alloy
                      coatings
Annex C (normative) - Adhesion tests
Annex D (normative) - Determination of the presence of
                      residual salts
Bibliography

Describes requirements for electroplated silver and silver alloy coatings for electrical, electronic and other engineering applications, including test methods.