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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: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JB/T 7520.4-2017English139 Add to Cart 3 days [Need to translate] Methods for chemical analysis of copper base brazing皿er metals - Part 4: Determination of stibonium content Valid JB/T 7520.4-2017
JB/T 7520.4-1994English159 Add to Cart 2 days [Need to translate] Chemical analysis method for phosphorus copper brazing filler metal Determination of antimony content with potassium iodide photometric method Obsolete JB/T 7520.4-1994

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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Older Standard (superseded by this standard) JB/T 7520.4-1994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.