DIN 50961:2012-04

This document is only to be used in conjunction with DIN EN ISO 2081, which specifies requirements to be met by electroplated coatings of zinc with supplementary treatments. This standard supplements the provisions of DIN EN ISO 2081 by specifying, for various service conditions, the minimum requirements regarding corrosion resistance when the coatings are tested using a DIN 50018 KFW 2,0 S test, as well as specifying recommended coating thicknesses. Requirements regarding corrosion resistance for zinc coatings which have not been subsequently treated are specified for coatings that are tested using the DIN 50018 - KFW 2,0 S test or the neutral salt spray test (NSS) as in DIN EN ISO 9227. Cr(VI) free passivated and sealed zinc and zinc alloy coatings are defined in DIN 50979. This standard has been prepared by Working Committee NA 062-01-76 AA "Galvanische Überzüge" ("Electrodeposited coatings") at the Materials Testing Standards Committee (NMP). This standard differs from DIN 50961:2000-09 as follows: a) the normative references have been updated; b) the definition of the term "electroplated coating" has been changed to be in line with DIN EN 12508:2000-09; c) a note on chromating solutions and chromate coating types includes an indication to blue chromate coatings; d) a definition of the term "passivation of zinc coatings" has been added; e) Table 1 "Corrosion resistance of zinc plus chromate conversion coatings" has been reworked.