JB/T 7948.10-1999 Melting flux chemical analysis method - combustion-coulomb method for carbon determination

JB/T 7948.1-1999 Methods for chemical analysis of melted welding fluxes The gravimetric method for determination of silicon dioxide content JB/T 7948.2-1999 JB/T 7948.2-1999 Melted flux chemical analysis methods Electrochemical potentiometry method for determining manganese oxide content JB/T 7948.3-1999 Methods for chemical analysis of melted welding fluxes The permanganate photome tric method for determination of manganese 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 JB/T 7948.5-1999 Methods for chemical analysis of melted welding fluxes The sulfosalicylic acid photometric method for determination of iron oxide content JB/T 7948.6-1999 Methods for chemical analysis of melted welding fluxes The pyrolytic method for determination of calcium fluoride content JB/T 7948.7-1999 Methods for chemical analysis of melted welding fluxes The lead chlorofluoride-EDTA volumetric method for determination of calcium fluoride content JB/T 7948.8-1999 Methods for chemical analysis melted welding fluxes The "molybdenum blue"photometric method for determination of phosphorus content JB/T 7948.9-1999 Furnace graphite fusion method for chemical analysis of the determination of Na2O and K2O by flame photometry JB/T 7948.11-1999 Methods for chemical analysis of melted welding fluxes The direct combustion-iodimetric method for determination of sulfur content JB/T 7948.12-1999 Methods for chemical analysis of melted welding fluxes The EDTA volumatric method for determination of calcium oxide and magnesium oxide content

JB/T 7948.10-1995