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Database: 189759 (19 Oct 2025)
JB/T 7776.4-2008 English PDF
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JB/T 7776.4-2008
: Test methods for chemical analysis silver-cadmium oxide electric contact material. Part 4: Determination of tin content
Status: Valid
JB/T 7776.4: Evolution and historical versions
Standard ID
Contents [version]
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Standard Title (Description)
Status
PDF
JB/T 7776.4-2008
English
169
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Test methods for chemical analysis silver-cadmium oxide electric contact material. Part 4: Determination of tin content
Valid
JB/T 7776.4-2008
JB/T 7776.4-1995
English
199
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2 days [Need to translate]
(Silver cadmium oxide electrical contact material for chemical analysis methods - Determination of nickel content by flame atomic absorption spectrometry)
Obsolete
JB/T 7776.4-1995
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Basic data
Standard ID
JB/T 7776.4-2008 (JB/T7776.4-2008)
Description (Translated English)
Test methods for chemical analysis silver-cadmium oxide electric contact material. Part 4: Determination of tin content
Sector / Industry
Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard
K14
Classification of International Standard
29.120.20
Word Count Estimation
6,646
Date of Issue
2008-03-12
Date of Implementation
2008-09-01
Older Standard (superseded by this standard)
JB/T 7776.5-1995
Regulation (derived from)
NDRC Notice No. 25 of 2008
Issuing agency(ies)
Ministry of Industry and Information Technology
Summary
This standard specifies the electrical contact material silver cadmium oxide method for measuring the amount of tin. This standard applies to electrical contact material silver cadmium oxide of tin content. Measuring range: 0. 10% to 0. 50%.