JB/T 7948.9-1999
Methods for chemical analysis of melted welding fluxes.The flame photometric method for determination of sodium oxide and potassium oxide content (English Version)
- Standard No.
- JB/T 7948.9-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- Professional Standard - Machinery
- Status
- 2018-04
- Replace By
- JB/T 7948.7-2017
- JB/T 7948.9-2017
- Latest
- JB/T 7948.7-2017
- JB/T 7948.9-2017
- Replace
- JB/T 7948.9-1995
- Scope
- This standard is applicable to the determination of the amount of sodium oxide and potassium oxide in smelting flux. Measuring range: 0.20% ~ 3.00%. This standard complies with GB/T 1467-1978 "General Provisions and General Provisions of Standards for Chemical Analysis Methods of Metallurgical Products".
JB/T 7948.9-1999 history
- 2017 JB/T 7948.7-2017 Flux chemical analysis methods Part 7: Determination of sodium oxide and potassium oxide content
- 1999 JB/T 7948.9-1999 Methods for chemical analysis of melted welding fluxes.The flame photometric method for determination of sodium oxide and potassium oxide content
- 1970 JB/T 7948.9-1995 Soldering Flux Chemical Analysis Methods Part 9: Determination of Calcium Oxide and Magnesium Oxide
JB/T 7948.9-1999 Methods for chemical analysis of melted welding fluxes.The flame photometric method for determination of sodium oxide and potassium oxide content was changed to JB/T 7948.7-2017 Flux chemical analysis methods Part 7: Determination of sodium oxide and potassium oxide content.
