GB/T 6730.49-1986 Methods for chemical analysis of iron ores--The flame atomic absorption spectrophotometric method for the determination of sodium and potassium content (English Version)
This standard applies to the determination of sodium and potassium in iron ore, iron concentrate, sinter and pellets. Measuring range: 0.005 to 1.50%.
GB/T 6730.49-1986 history
2017GB/T 6730.49-2017 Iron ores.Determination of potassium content.Flame atomic absorption spectrometric method
1986GB/T 6730.49-1986 Methods for chemical analysis of iron ores--The flame atomic absorption spectrophotometric method for the determination of sodium and potassium content
GB/T 6730.49-1986 Methods for chemical analysis of iron ores--The flame atomic absorption spectrophotometric method for the determination of sodium and potassium content was changed to GB/T 6730.75-2017 Iron ores.Determination of sodium content.Flame atomic absorption spectrometric method.
GB/T 6730.49-1986 Methods for chemical analysis of iron ores--The flame atomic absorption spectrophotometric method for the determination of sodium and potassium content was changed to GB/T 6730.75-2017 Iron ores.Determination of sodium content.Flame atomic absorption spectrometric method.