IS 1057 : 2025 Commercial Carat Weights - Specification
| ICS 01.060; 39.060 | PGD 26 |
1 SCOPE
This standard prescribes the requirements for commercial carat weights intended for use in weighing pearls, diamonds and other precious stones.
2 REFERENCES
The standards given below contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the edition indicated were valid. All standards are subject to revision, and parties to agreement based on this standard are encouraged to investigate the possibility of applying the most recent edition of these standards:
| IS No. | Title |
| IS 306 : 1983 | Specification for tin bronze ingots and castings (third revision) |
| IS 319 : 2007 | Free cutting brass bars, rods and sections - Specification (fifth revision) |
| IS 737 : 2024 | Wrought aluminium and aluminium alloy sheet and strip for general engineering purposes - Specification (fifth revision) |
| IS 2283 : 2000 | Nickel silver sheet, strip and foil - Specification (second revision) |