GB/T 5070.12-2002
Chemical analysis of magnesia chromite refractories--Part 12: Determination of potassium oxide and sodium oxide--Atomic absorption spectrophotometric method (English Version)
- Standard No.
- GB/T 5070.12-2002
- Language
- Chinese, Available in English version
- Release Date
- 2002
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2007-10
- Replace By
- GB/T 5070-2007
- Latest
- GB/T 5070-2015
- Scope
- This part of GB/T 5070 specifies the method for the determination of potassium oxide and sodium oxide by flame atomic absorption spectrometry. This part applies to the determination of potassium oxide and sodium oxide in magnesia-chrome refractories. The measurement range (mass fraction) is 0.01% to 0.50%.
GB/T 5070.12-2002 history
- 2015 GB/T 5070-2015 Chemical analysis of refractories containing chrome
- 2007 GB/T 5070-2007 Chemical analysis of refractories containing chrome
- 2002 GB/T 5070.12-2002 Chemical analysis of magnesia chromite refractories--Part 12: Determination of potassium oxide and sodium oxide--Atomic absorption spectrophotometric method
GB/T 5070.12-2002 Chemical analysis of magnesia chromite refractories--Part 12: Determination of potassium oxide and sodium oxide--Atomic absorption spectrophotometric method was changed to GB/T 5070-2007 Chemical analysis of refractories containing chrome.
GB/T 5070.12-2002 -All Parts
GB/T 5070.1-2002 Chemical analysis of magnesia chromite refractories--Part 1: Determination of loss on ignition--Gravimetric method
GB/T 5070.10-2002 Chemical analysis of magnesia chromite refractories--Part 10: Determination of chromium oxide--Ammonium ferrous sulfate volumetric method
GB/T 5070.11-2002 Chemical analysis of magnesia chromite refractories--Part 11: Determination of manganese oxide--Atomic absorption spectrophotometric method
GB/T 5070.12-2002 Chemical analysis of magnesia chromite refractories--Part 12: Determination of potassium oxide and sodium oxide--Atomic absorption spectrophotometric method
GB/T 5070.2-2002 Chemical analysis of magnesia chromite refractories--Part 2: Determination of silicon dioxide--Molybdenum blue photometric method
GB/T 5070.3-2002 Chemical analysis of magnesia chromite refractories--Part 3: Determination of iron oxide--O-phenanthroline photometric method
GB/T 5070.4-2002 Chemical analysis of magnesia chromite refractories--Part 4: Determination of aluminium oxide--EDTA volumetric method
GB/T 5070.5-2002 Chemical analysis of magnesia chromite refractories--Part 5: Determination of titanium dioxide--Diantipylmethane photometric method
GB/T 5070.6-2002 Chemical analysis of magnesia chromite refractories--Part 6: Determination of calcium oxide--EGTA volumetric method
GB/T 5070.7-2002 Chemical analysis of magnesia chromite refractories--Part 7: Determination of calcium oxide--EDTA volumetric method
GB/T 5070.8-2002 Chemical analysis of magnesia chromite refractories--Part 8: Determination of magnesium oxide--CyDTA volumetric method
GB/T 5070.9-2002 Chemical analysis of magnesia chromite refractories--Part 9: Determination of magnesium oxide--EDTA volumetric method