JB/T 7948.10-1995 Methods for chemical analysis of melted welding fluxes.The direct combustion-coulomb method for determination of total carbon content (English Version)
2018JB/T 7948.8-2017 Soldering Flux Chemical Analysis Methods Part 8: Determination of Carbon and Sulfur Content
1999JB/T 7948.10-1999 Methods for chemical analysis of melted welding fluxes.The direct combustion-coulomb method for determination of total carbon content
1970JB/T 7948.10-1995 Methods for chemical analysis of melted welding fluxes.The direct combustion-coulomb method for determination of total carbon content