JB/T 7948.5-2017
Methods for chemical analysis of fluxes Part 5: Determination of calcium fluoride content (English Version)

Standard No.

JB/T 7948.5-2017

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 7948.5-2017

Replace

JB/T 7948.6-1999 JB/T 7948.7-1999

JB/T 7948.5-2017 history

• 2017 JB/T 7948.4-2017 Methods for chemical analysis of fluxes Part 4: Determination of iron oxide content
• 1999 JB/T 7948.5-1999 Methods for chemical analysis of melted welding fluxes.The sulfosalicylic acid photometric method for determination of iron oxide content
• 1970 JB/T 7948.5-1995 Methods of chemical analysis of fluxes - Part 5: Determination of calcium fluoride content

JB/T 7948.5-2017 Methods for chemical analysis of fluxes Part 5: Determination of calcium fluoride content has been changed from JB/T 7948.6-1999 Methods for chemical analysis of melted welding fluxes.The pyrolytic method for determination of calcium fluoride content.

JB/T 7948.5-2017 Methods for chemical analysis of fluxes Part 5: Determination of calcium fluoride content has been changed from JB/T 7948.7-1999 Methods for chemical analysis of melted welding fluxes.The lead chlorofluoride-EDTA volumetric method for determination of calcium fluoride content.