1.1 This standard prescribes the methods of chemical analysis of antifriction bearing alloys having chemical composition within the following limits:
Percent
Lead (0.1. to 80.00
Tin 4.50 ? 93.00
Antimony 7.00 ? 16.00
Copper 0.10 ? 6.00
Arsenic 0.10 ? 0.25
Bismuth 0.05 ? 0.1
Iron 0.08 ? 0.1
Cadmium 0.05 ? 0.1
Zinc 0.008,, 0.01
Aluminium 0.005, Max
1.2 The analytical procedures appear in the following order:
Item
Mo.
a) Tin — by the lodimetric Method 4
b) Arsenic — by the Distillation (lodimetric) Method 5
c) Antimony — by the Potassium Bromate Method 6
d) Lead and Copper — by the Hydrobromic Acid Separation 7 Method
e) Copper — by the Rapid Electrolytic Method 8
f) Bismuth — by the Thiourea (Photometric) Method 9
g) Iron — by the Photometric Method 10 h) Cadmium — by the Sulphide Separation (Gravimetric) 11
Method j) Zinc—by the Dithizone (Colorimetric) Method 12
k) Aluminium — by the Aluminon (Photometric) Method 13
IS 1409-1959 history
1960IS 1409-1959 Chemical analysis methods for antifriction bearing alloys