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Database: 189759 (19 Oct 2025)
JB/T 7948.3-2017 English PDF
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JB/T 7948.3-2017
: Methods for chemical analysis of welding fluxes. Part 3: Determination of aluminium oxide content
Status: Valid
JB/T 7948.3: Evolution and historical versions
Standard ID
Contents [version]
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Standard Title (Description)
Status
PDF
JB/T 7948.3-2017
English
169
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Methods for chemical analysis of welding fluxes. Part 3: Determination of aluminium oxide content
Valid
JB/T 7948.3-2017
JB/T 7948.3-1999
English
159
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Methods for chemical analysis of melted welding fluxes. The permanganate photometric method for determination of manganese oxide content
Obsolete
JB/T 7948.3-1999
JB/T 7948.3-1995
English
RFQ
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(Chinese Industry Standard)
Obsolete
JB/T 7948.3-1995
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Basic data
Standard ID
JB/T 7948.3-2017 (JB/T7948.3-2017)
Description (Translated English)
Methods for chemical analysis of welding fluxes. Part 3: Determination of��aluminium oxide content
Sector / Industry
Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard
J33
Classification of International Standard
25.160.20
Word Count Estimation
7,778
Date of Issue
2017-11-07
Date of Implementation
2018-04-01
Older Standard (superseded by this standard)
JB/T 7948.4-1999
Quoted Standard
GB/T 6682; GB/T 12806; GB/T 12808; GB/T 12809; GB/T 12810; JB/T 7948.2-2017
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 principle of determination of alumina content in flux, reagents, instruments, samples, analysis steps, calculation of analysis results, allowable difference and so on.