GB 4581.2-1984
Alunite ores--Analytical samples--The methods of the sampling and preparation
1985-06
- Standard No.
- GB 4581.2-1984
- Language
- Chinese
- Release Date
- 1984
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Lastest
- GB 4581.2-1984
- Replace By
- HG/T 2957.2-1984(1997)
- Scope
- This standard is applicable to the collection and preparation of analytical samples used in the production of alum and the quality inspection of alum ore suitable for comprehensive processing.
GB 4581.2-1984 history
- 1984 GB 4581.2-1984 Alunite ores--Analytical samples--The methods of the sampling and preparation
GB 4581.2-1984 -All Parts
GB 4581.10-1984 Alunite ores--Determination of total iron content--Sulphosalicylic acid photometric method
GB 4581.11-1984 Alunite ores--Determination of titanium content--Diantipyrylmethane photometric method
GB 4581.2-1984 Alunite ores--Analytical samples--The methods of the sampling and preparation
GB 4581.3-1984 Alunite ores--Determination of hygroscopic moisture content in analytical samples--Gravimetric method
GB 4581.4-1984 Alunite ores--Determination of sulphur content for sulphate--Barium sulphate gravimetric method
GB 4581.5-1984 Alunite ores--Determination of aluminium content--Volumetric method
GB 4581.6-1984 Alunite ores--Determination of combined water content--Gravimetric method
GB 4581.7-1984 Alunite ores--Determination of potassium and sodium contents--Potassium tetraphenylborate gravimetric method and flame emission spectrophotometric methods
GB 4581.8-1984 Alunite ores--Determination of total sulphur content--Barium sulphate gravimetric method
GB 4581.9-1984 Alunite ores--Determination of silicon content--Gravimetric method