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GB/T 30712-2014 Active
GB/T 30712-2014 Provision of permissible errors for measurement of polished diamond mass
Abstract
This standard specifies the requirements for the allowable deviations in the quality measurement of polished diamonds, the test methods, and the marking requirements.
This standard applies to the trade and quality supervision of polished diamonds settled by quality.
This standard applies to single polished diamonds with a weight of 0.040 g (0.20 ct) or more; single polished diamonds with a weight of less than 0.040 g (0.20 ct) and polished diamonds in group settings or bulk settlements may refer to this standard for implementation.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 30712-2014 |
| CCS | Other non-metallic minerals |
| ICS | Jewelry |
| Implement Date | 2014-10-01 |
Price
$ 28.00
Subtotal
$ 28.00
Tax
$ 0.00
Order Total (incl. tax)
$ 28.00