JB/T 9220-2023 The chemical composition analysis method for the slag of iron casting furnace

JB/T 9220.1～9220.11-1999 JB/T 9220.1～9220.11-1999 JB/T 9220.3-1999 Chemical analysis methods for acid slay of cupola-Determination of ferrous oxide by volumetric method using potassium dichromate JB/T 9220.4-1999 Chemical analysis methods for acid slay of cupola-Determination of manganous oxide by volumetric method using sodium arsenite nitrite JB/T 9220.5-1999 Chemical analysis methods for acid slay of cupola-Determination of aluminium oxide by volumetric method using sodium f luoride - EDTA JB/T 9220.1～9220.11-1999 JB/T 9220.7-1999 Chemical analysis methods for acid slay of cupola-Determination of calcium oxide by volumetric method using potassium permanganate JB/T 9220.8-1999 Chemical analysis methods for acid slay of cupola-Determination of magnesium oxide by DDTC separation process and EDTA volumetric method JB/T 9220.9-1999 Chemical analysis methods for acid slay of cupola-Determination of phosphorus pentoxide by extraction molybdophosphate yellow using methlisobutyl ketone spectrophotometic method of vanadium JB/T 9220.10-1999 Casting iron furnace acidic slag chemical analysis method - determination of sulfur content using the BaSO4 weight method JB/T 9220.11-1999 Chemical analysis methods for acid slay of cupola-Determination of sulphur by volumetric method using combustion of potassium iodate