IS 6516 : 1972 Methods for chemical analysis of tin and lead in secondary tin

1 Scope

1.1 This standard prescribes the methods for determination oftin (96 to 99 percent) and lead (0.9 to 3.5 percent) respectivelyin secondary tin (see IS 4280 : 1967).

2 References

IS 2 :1960 Rules for roundingoff numerical values

IS 265 :1962 Specification for hydrochloricacid

IS 266 :1961 Specification for sulphuricacid

IS 1070 : 1961Specification for water, distilled quality

IS 1817 : 1961Methods of sampling non-ferrous metals for chemicalanalysis

IS 1940 : 1967Methods of chemical analysis of tin ingot

IS 4280 : 1967Specification for refined secondary tin