IS 2270 : 1965 Method for assaying of platinum and platinum alloys

1 Scope

1.1 This standard prescribes the methods for assaying ofplatinum in various grades of platinum as specified in IS 2275 -1963. It also prescribes methods of determination of silver, gold,copper, iridium and rhodium which are commonly found in platinumalloys.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 264 : 1950Specification for nitric acid

IS 265 : 1962Specification for hydrochloric acid

IS 266 : 1961Specification for sulphuric acid

IS 1070 : 1960Specification for water, distilled quality

IS 2275 : 1963 Gradesof platinum