- Standard No.
- JB/T 7948.3-2017
- Language
- Chinese, Available in English version
- Release Date
- 2017
- Published By
- 工业和信息化部/国家能源局
- Latest
-
JB/T 7948.3-2017
- Replace
-
JB/T 7948.4-1999
JB/T 7948.3-2017 history
- 2017 JB/T 7948.2-2017 Methods for chemical analysis of fluxes Part 2: Determination of manganese oxide content
- 1999 JB/T 7948.3-1999 Methods for chemical analysis of melted welding fluxes.The permanganate photome tric method for determination of manganese oxide content
- 1970 JB/T 7948.3-1995 Methods of Chemical Analysis of Solder Fluxes Part 3: Determination of Aluminum Oxide Content
JB/T 7948.3-2017 Methods for chemical analysis of fluxes Part 3: Determination of aluminum oxide content has been changed from JB/T 7948.4-1999 Methods for chemical analysis of melted welding fluxes.The EDTA volumetric method for determination of aluminium oxide content.