QB 1131-2005
Jewellery-the provision of gold coatings tickness (English Version)

Standard No.

QB 1131-2005

Language

Chinese, Available in English version

Release Date

2005

Published By

Professional Standard - Light Industry

Latest

QB 1131-2005

Replace

QB 1131-1991

Scope

This standard specifies the terms and definitions, requirements, inspection methods and identification of gold covering thickness of jewelry products. This standard applies to jewelry products with non-gold base.

QB 1131-2005 Referenced Document

• GB/T 17722 Gold-plated thickness measurement by SEM
• QB/T 1133 Spectroscopic method for determination of gold coating thickness in jewelry*， 2017-07-01 Update
• QB/T 1135 Jewellery Measurement of gold and silver coating tickness X-ray fluorescence spectrometric methods*， 2006-08-19 Update

QB 1131-2005 history

• 2005 QB 1131-2005 Jewellery-the provision of gold coatings tickness
• 1991 QB 1131-1991 Regulations on the thickness of the gold covering layer of jewellery.