IS 2270 : 2024 : Assaying of Platinum and Platinum Alloys - Methods
1 SCOPE
This standard prescribes the methods for assaying of platinum in various grades of platinum as specified in IS 2275. It also prescribes methods of determination of silver, gold, copper, iridium and rhodium which are commonly found in platinum alloys.
2 REFERENCES
The standards given below contain provisions which through reference in this text, constitute provision of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of these standards:
| IS No. | Title |
| IS 264 : 2005 | Nitric acid - Specification (third revision) |
| IS 265 : 2021 | Hydrochloric acid - Specification (fifth revision) |
| IS 266 : 1993 | Sulphuric acid - Specification (third revision) |
| IS 1070 : 2023 | Reagent grade water - Specification (fourth revision) |
| IS 2275 : 1984 | Grades of platinum (first revision) |
| IS 15940 : 2021/ISO 11494 : 2019 | Jewellery and precious metals - Determination of platinum in platinum alloys - ICP-OES method using an internal standard element (first revision) |