JB/T 4107.4-2014
Chemical analyse method for electrical contact materials.Part 4: Determination of silver content in the silver-tungsten (English Version)

Standard No.

JB/T 4107.4-2014

Language

Chinese, Available in English version

Release Date

2014

Published By

Professional Standard - Machinery

Latest

JB/T 4107.4-2014

Replace

JB/T 4107.4-1999

Scope

This part of JB/T 4107 specifies the method for determining the silver content in silver-tungsten electrical contact materials using the iodometric method. This section applies to the determination of silver content in silver-tungsten electrical contact materials. Determined mass fraction range: 25.00%~75.00%.

JB/T 4107.4-2014 history

• 2014 JB/T 4107.4-2014 Chemical analyse method for electrical contact materials.Part 4: Determination of silver content in the silver-tungsten
• 1999 JB/T 4107.4-1999 Chemical analyse method for electrical contact materials.Determination of silver content in the silver - tungsten ( iodimetry)