IS 1340 : 1977 Code of practice for chromate conversion coating on zinc and cadmium coated articles and zinc base alloys

1 Scope

1.1 This code lays down the Procedure for providing protectivecoating, on zinc and cadmium coated articles and zinc base alloysintended primarily to prevent or reduce their corrosion under humidconditions.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 245 : 1970Specification for trichloroethylene, technical

IS 573 : 1973Specification for trisodium phosphate

IS 8602 : 1977Methods of tests for chromate conversion coatings on zincand cadmium surfaces