BS EN ISO 1456 specifies the requirements for decorative nickel, nickel plus chromium, copper plus nickel and copper plus nickel plus chromium coatings that are applied to iron, steel, zinc alloys, copper and copper alloys, and to aluminium and aluminium alloys, to provide an attractive appearance and enhanced corrosion resistance.
Coating designations are specified that differ in thickness and type, and guidance is given on selecting the coating designation appropriate for the service conditions to which the coated product will be exposed.
BS EN ISO 1456 does not specify the surface condition required by the basis metal prior to the coating process, and is not applicable to coatings on sheet, strip or wire in the non-fabricated form nor to threaded fasteners or coil springs.
Requirements for decorative, electroplated copper plus nickel plus chromium coatings on plastic materials are specified in ISO 4525. ISO 4526 and ISO 6158 specify requirements for coatings of nickel and chromium, respectively, for engineering purposes.
Contents of BS EN ISO 1456 include:
Scope
Normative references
Terms and definitions
Information to be supplied by the purchaser to the processor
Essential information
Additional information
Designation specifications
Service-condition number
Type of copper coating
Types of nickel coating
Types and thicknesses of chromium
Requirements
Appearance
Coating thickness
Double- and triple-layer nickel coatings
Adhesion.
Corrosion resistance in CASS, Corrodkote and salt spray tests
STEP test requirements
Ductility
Stress-relief heat treatments before coating
Hydrogen-embrittlement-relief treatment
Sampling
Determination of cracks and pores in chromium coatings
Methods of test for the determination of thickness
Ductility test
Determination of the sulfur content of electrodeposited nickel
Step test method
Bibliography
BS EN ISO 1456 may not be compliant with some countries’ health and safety legislations. It calls for the use of substances and/or procedures that may be injurious to health if adequate safety measures are not taken.
BS EN ISO 1456 does not address any health hazards, safety or environmental matters and legislations associated with its use. It is the responsibility of the user of the standard to establish appropriate health, safety and environmentally acceptable practices, and take suitable actions to comply with any national and international regulations.
Compliance with this BS EN ISO 1456 does not automatically confer immunity from legal obligations.
