1.1 This standard covers the methods of chemical analysis of different grades of printing metal and the methods deal with the determination of tin, antimony, iron copper, arsenic, nickel, aluminium and zinc as specified in *IS : 1357-1959. Lead is determined by difference.
1.2 The following is the index to the methods of analysis of the elements covered under the scope of this standard:
Item No.
9
a) Aluminium — by the Aluminon ( Photometric ) Method .. 9
b) Antimony — by the Potassium Bromate Method ... ... 5
c) Arsenic — by the Distillation (Iodimetric ) Method ... 7
d) Iron and Copper — by the Photometric Method ... ... 6
e) N ickel— by the Dimethylglyoxime ( Photometric ) Method ... 8
f) Tin—by the Iodimetric Method ... ... ... ... 4
g) Zinc — by the Polarographic ( Referee) Method ... ... 10
h) Zinc — by the Photometric (Alternate) Method ... ... 11
IS 1345-1960 history
1960IS 1345-1960 Chemical analysis methods for printed metals