JB/T 7775.2-2008
Test methods for chemical analysis of copper-tungsten-tungsten carbide electric contact material. Part 2: Determination of carbon content (English Version)

Standard No.

JB/T 7775.2-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

Professional Standard - Machinery

Latest

JB/T 7775.2-2008

Replace

JB/T 7775.3-1995

Scope

This part of JB/T 7775 specifies the method for determination of carbon content in copper tungsten carbide vacuum contact materials. This section applies to the determination of carbon content in copper-tungsten carbide vacuum contact materials. Measuring range: 1.00%～5.00%.

JB/T 7775.2-2008 Referenced Document

• GB/T 223.69-1997 Methods for chemical analysis of iron, steel and alloy. The gas-volumetric method after combustion in the pipe furnace for the determination of carbon content

JB/T 7775.2-2008 history

• 2008 JB/T 7775.1-2008 Test methods for chemical analysis of copper-tungsten-tungsten carbide electric contact material. Part 1: Determination of copper content
• 1995 JB/T 7775.2-1995 Copper tungsten carbide tungsten carbide vacuum contact material chemical analysis method complexometric titration determination of copper content

JB/T 7775.2-2008 Test methods for chemical analysis of copper-tungsten-tungsten carbide electric contact material. Part 2: Determination of carbon content has been changed from JB/T 7775.3-1995 Copper, tungsten, tungsten carbide, vacuum contact materials, chemical analysis method, gas volumetric method, determination of carbon content.