JB/T 7778.2-2008 English PDF

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JB/T 7778.2-2008: Test methods for chemical analysis of silver-tungsten carbide electric contact material. Part 2: Determintion of nickel content

JB/T 7778.2: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JB/T 7778.2-2008	209	Add to Cart	3 days	Test methods for chemical analysis of silver-tungsten carbide electric contact material. Part 2: Determintion of nickel content
JB/T 7778.2-1995	199	Add to Cart	2 days	(Silver tungsten electrical contact material for chemical analysis methods. Spectrophotometric determination of nickel dimethylglyoxime luminous)	Obsolete

Similar standards

GB/T 38090   JB/T 8987   GB/T 3217   JB/T 7778.4   JB/T 7774.1   JB/T 7778.1   

Basic data

Standard ID: JB/T 7778.2-2008 (JB/T7778.2-2008)
Description (Translated English): Test methods for chemical analysis of silver-tungsten carbide electric contact material. Part 2: Determintion of nickel content
Sector / Industry: Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard: K14
Classification of International Standard: 29.120.20
Word Count Estimation: 6,671
Date of Issue: 2008-02-01
Date of Implementation: 2008-07-01
Older Standard (superseded by this standard): JB/T 7778.2-1995
Regulation (derived from): ?National Development & Reform Commission Announcement 2008 No.11
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the method for the determination of silver tungsten electrical contact material nickel content. This section applies to the determination of silver nickel tungsten contact material mass fraction. Measuring range: 0. 50% to 2. 00%.

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