UNI 5969-1967 Methods for chemical analysis of ferrous metal materials. Among wear-resistant white metals, lead alloy and tin are used for printing. Determination of zinc in lead soldering alloys. Polarography
The method is applicable to the alloys considered in this unification having a zinc content less than or equal to 0.05%.
UNI 5969-1967 history
1967UNI 5969-1967 Methods for chemical analysis of ferrous metal materials. Among wear-resistant white metals, lead alloy and tin are used for printing. Determination of zinc in lead soldering alloys. Polarography