IS 1409-1959

标准号：IS 1409-1959
发布日期：1960/5/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This standard prescribes the methods of chemical analysis of antifriction bearing alloys having chemical composition within the following limits:PercentLead (0.1. to 80.00Tin 4.50 ? 93.00Antimony 7.00 ? 16.00Copper 0.10 ? 6.00Arsenic 0.10 ? 0.25Bismuth 0.05 ? 0.1Iron 0.08 ? 0.1Cadmium 0.05 ? 0.1Zinc 0.008,, 0.01Aluminium 0.005, Max1.2 The analytical procedures appear in the following order:ItemMo.a) Tin — by the lodimetric Method 4b) Arsenic — by the Distillation (lodimetric) Method 5c) Antimony — by the Potassium Bromate Method 6d) Lead and Copper — by the Hydrobromic Acid Separation 7 Methode) Copper — by the Rapid Electrolytic Method 8f) Bismuth — by the Thiourea (Photometric) Method 9g) Iron — by the Photometric Method 10 h) Cadmium — by the Sulphide Separation (Gravimetric) 11Method j) Zinc—by the Dithizone (Colorimetric) Method 12k) Aluminium — by the Aluminon (Photometric) Method 13