JB/T 7948.4-1999
Methods for chemical analysis of melted welding fluxes.The EDTA volumetric method for determination of aluminium oxide content (English Version)
- Standard No.
- JB/T 7948.4-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- Professional Standard - Machinery
- Status
- 2018-04
- Replace By
- JB/T 7948.3-2017
- JB/T 7948.4-2017
- Latest
- JB/T 7948.3-2017
- JB/T 7948.4-2017
- Replace
- JB/T 7948.4-1995
- Scope
- This standard is applicable to the determination of alumina content in smelting flux. Measuring range: 1.00%~40.0%. This standard complies with GB/T 1467-1978 "General Provisions and General Provisions of Standards for Chemical Analysis Methods of Metallurgical Products".
JB/T 7948.4-1999 history
- 2017 JB/T 7948.3-2017 Methods for chemical analysis of fluxes Part 3: Determination of aluminum oxide content
- 1999 JB/T 7948.4-1999 Methods for chemical analysis of melted welding fluxes.The EDTA volumetric method for determination of aluminium oxide content
- 1970 JB/T 7948.4-1995 Methods of Chemical Analysis of Soldering Fluxes Part 4: Determination of Iron Oxide Content
JB/T 7948.4-1999 Methods for chemical analysis of melted welding fluxes.The EDTA volumetric method for determination of aluminium oxide content was changed to JB/T 7948.3-2017 Methods for chemical analysis of fluxes Part 3: Determination of aluminum oxide content.
