- Standard No.
- GB/T 6730.13-2007
- Language
- Chinese, Available in English version
- Release Date
- 2007
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
-
GB/T 6730.13-2007
- Replace
-
GB/T 6730.15-1986
GB/T 6730.13-1986
- Scope
- This part of GB/T 6730 stipulates the determination of calcium and magnesium content by EGTA-CyDTA titration method. This part is applicable to the determination of calcium and magnesium content in natural iron ore, iron concentrate, sinter and pellet; determination range (mass fraction): calcium content: 1.5% ~ 15.0%, magnesium content: >1.0 %.
GB/T 6730.13-2007 Referenced Document
- GB/T 10322.1 Iron ore sampling and sample preparation methods*, 2023-08-06 Update
- GB/T 12806 Laboratory glassware.One-mark volumetric flasks *, 2011-12-30 Update
- GB/T 12808 Laboratory glass instrument single marked line pipette*, 2016-07-01 Update
- GB/T 6682 Water for analytical laboratory use.Specification and test methods*, 2008-05-15 Update
- GB/T 6730.1 Iron ores.Preparation of predried test samples for chemical analysis*, 2016-02-24 Update
GB/T 6730.13-2007 history
- 2007 GB/T 6730.13-2007 Iron ores.Determination of calcium and magnesium content.EGTA-CyDTA titrimetric method
- 1986 GB/T 6730.13-1986 Methods for chemical analysis of iron ores--The potassium permanganate volumetric method for the determination of calcium content
GB/T 6730.13-2007 Iron ores.Determination of calcium and magnesium content.EGTA-CyDTA titrimetric method has been changed from GB/T 6730.15-1986 Methods for chemical analysis of iron ores--The complexometric method for the determination of magnesium content.