JB/T 6237.9-2008
Test methods for chemical analysis of silver powder for electric contact material. Part 9: Determination of nitrate content (English Version)

Standard No.

JB/T 6237.9-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

Professional Standard - Machinery

Latest

JB/T 6237.9-2008

Replace

JB/T 6237.11-1992

Scope

This part of JB/T 6237 specifies the method for determination of nitrate content in silver powder for electrical contact materials. This section applies to the determination of nitrate content in silver powder used as electrical contact materials. Measuring range:

JB/T 6237.9-2008 history

• 2008 JB/T 6237.7-2008 Test methods for chemical analysis of silver powder for electric contact material. Part 7: Determination of moisture level
• 1992 JB/T 6237.9-1992 Silver powder chemical analysis method gravimetric method for determination of water content in electrical contacts

JB/T 6237.9-2008 Test methods for chemical analysis of silver powder for electric contact material. Part 9: Determination of nitrate content has been changed from JB/T 6237.11-1992 Silver powder chemical analysis method for electrical contacts Determination of nitrate content by benzidine visual colorimetry.