This International Standard specifies requirements for nickel electrodeposited coatings that are applied to iron and steel, to zinc alloys, to copper or copper alloys, and to aluminium and aluminium alloys to provide an attractive appearance and corrosion resistance. Several classes of coatings are provided that differ in thickness and guidance is given in selecting the coating class appropriate to the service conditions to which the coated product will be exposed.
2 The nickel coatings without chromium topcoats that are specified in this International Standard are suitable for applications in which tarnishing is prevented by rubbing or handling in service, or by the use of topcoats other than chromium. They are also suitable for those applications where tarnishing is of no importance.
NOTE — Similar coatings that provide an attractive appearance and corrosion resistance, and that do not tarnish in service are specified in ISO 1456. Coatings of nickel used for engineering purposes are covered by ISO 4526.
3 This International Standard does not specify the surface condition required by the basis metal prior to the coating process.
4 This International Standard is not applicable to coatings on sheet strip or wire in the unfabricated form nor to threaded fasteners or coil springs.
SANS 136:1988 history
0000 SANS 136-2008
1988SANS 136:1988 Metallic coatings - Electrodeposited coatings of nickel