QB/T 1901.2-1993
Gold alloy coatings for watch cases and accessories - Part 2: Tests for purity, thickness, corrosion resistance and bond strength (English Version)

Standard No.

QB/T 1901.2-1993

Language

Chinese, Available in English version

Release Date

1994

Published By

Professional Standard - Light Industry

Status

Be replaced 2007-05

Replace By

QB/T 1901.2-2006

Latest

QB/T 1901.2-2006

Scope

This standard specifies the test methods for the purity, thickness, corrosion resistance and bonding strength of the gold alloy covering of watch cases and accessories. This standard applies to the gold alloy covering layer of external accessories such as watch cases, crowns, and non-removable watch straps.

QB/T 1901.2-1993 history

• 2006 QB/T 1901.2-2006 Watch-cases and accessories good alloy covering Part 2: Determination of fineness, thickness, corrosion resistance and adhension
• 1994 QB/T 1901.2-1993 Gold alloy coatings for watch cases and accessories - Part 2: Tests for purity, thickness, corrosion resistance and bond strength