This standard covers the test procedure for the chemical analysis of various grades of brazing solder (see IS: 24-1956 ) having composition within the following range:
Percent
Copper 40 to 85
Lead 0·5 to·1
Cadmium 0·5 to 1·5
Tin 0·01 to 1·5
Iron, Max 0·15
Arsenic, Max 0·05
Antimony, Max 0·05
Bismuth, Max 0·05
Zinc Remainder
1.2 The analytical procedures appear in the following order:
Clause No.
a) Copper and Lead—by the
Electrolytic Method " 4
Clause No.
b) Cadmium by the Sulphide Separation ( Gravimetric ) Method 5
c) Iron — by the Photometric Method 6
d) Zinc — by the Ferrocvanide Method 7
e) Tin — bv the lodimetric Method 8
i) Arsenic and Antimony — by the Distillation ( lodimetric ) Method 9
g) Bismuth — by the Iodine ( Co-
lorimetric ) Method 10
IS 999-1959 history
1959IS 999-1959 Chemical analysis methods of solder