IS 2790 : 1999 Guidelines for Manufacture of 23, 22, 21, 18, 14 and 9 Carat Gold Alloys

1 Scope

This standard covers guidelines for manufacture of 23, 22, 21,18, 14 and 9 carat gold in the form of ingot, bar, plate, sheet,rod, wire and granules.

2 References

IS 191 : Part 6 : 1980 Copper :Part 6 Fire refined high conductivity copper(FRHC)

IS 209 :1992Zinc ingot

IS 1417 :1999Gold and gold alloys, jewellery/artefacts -Fineness and marking - Specification

IS 1418 :1999Assaying of gold in gold bullion, gold alloys andgold jewellery - Cupellation (fire assay) method

IS 2112 :1981Grades of silver and silver alloys

IS 2782 :1964Primary nickel

IS 3096 :1965Fine grade palladium