QB/T 1690-2021
Regulations on tolerances for quality measurement of precious metal jewelry (English Version)

Standard No.

QB/T 1690-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

工业和信息化部

Latest

QB/T 1690-2021

Replace

QB/T 1690-2004

QB/T 1690-2021 history

• 2021 QB/T 1690-2021 Regulations on tolerances for quality measurement of precious metal jewelry
• 2004 QB/T 1690-2004 Provision of permissible errors for measurement of precious metals adornment mass
• 1993 QB/T 1690-1993 Regulations on Tolerances for Weight Measurement of Gold and Silver Jewelry