JB/T 7520.4-2017 English PDF

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JB/T 7520.4-2017: Methods for chemical analysis of copper base brazing皿er metals - Part 4: Determination of stibonium content
Status: Valid

JB/T 7520.4: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JB/T 7520.4-2017	139	Add to Cart	3 days	Methods for chemical analysis of copper base brazing皿er metals - Part 4: Determination of stibonium content	Valid
JB/T 7520.4-1994	159	Add to Cart	2 days	Chemical analysis method for phosphorus copper brazing filler metal Determination of antimony content with potassium iodide photometric method	Obsolete

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GB/T 8110   JB/T 5000.3   GB/T 6417.1   JB/T 7520.2   JB/T 7520.3   JB/T 7520.1   

Basic data

Standard ID: JB/T 7520.4-2017 (JB/T7520.4-2017)
Description (Translated English): Methods for chemical analysis of copper base brazing��er metals - Part 4: Determination of stibonium content
Sector / Industry: Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard: J33
Classification of International Standard: 25.160.20
Word Count Estimation: 6,656
Date of Issue: 2017-11-07
Date of Implementation: 2018-04-01
Older Standard (superseded by this standard): JB/T 7520.4-1994
Quoted Standard: GB/T 6682; GB/T 12806; GB/T 12808; GB/T 12809; GB/T 12810
Regulation (derived from): Announcement No. 48 of 2017 by the Ministry of Industry and Information Technology; No. 2 of 2018 (General No. 218)
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the scope of the determination of the amount of bismuth in the copper-based solder, normative references, general rules, principles, reagents, equipment, test procedures, test results processing, tolerance and other content.

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