DIN EN ISO 4521:2009-01

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
National Annex NA (informative) Bibliography

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