GB/T 12687.2-1990
Chemical analysis of nitrate of rare earth for agriculture--Determination of chlorine content--Mercurimetric method (English Version)
- Standard No.
- GB/T 12687.2-1990
- Language
- Chinese, Available in English version
- Release Date
- 1990
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2011-11
- Replace By
- GB/T 12687.2-2010
- Latest
- GB/T 12687.2-2010
- Scope
- This standard specifies the determination method of chlorine content in agricultural rare earth nitrate. This standard is applicable to the determination of chlorine content in agricultural rare earth nitrate, the determination range: 0.1% to 5%.
GB/T 12687.2-1990 history
- 2011 GB/T 12687.2-2010 Chemical analysis methods of rare earth nitrate for growth regulator plant.Part 2: Determination of chlorine content
- 1990 GB/T 12687.2-1990 Chemical analysis of nitrate of rare earth for agriculture--Determination of chlorine content--Mercurimetric method
GB/T 12687.2-1990 -All Parts
GB/T 12687.1-2010 Chemical analysis methods of rare earth nitrate for growth regulator for plant.Part 1:Determination of arsenic,mercury,lead,cadmium and chromium contents.Inductively coupled plasma mass spectrometry method
GB/T 12687.2-2010 Chemical analysis methods of rare earth nitrate for growth regulator plant.Part 2: Determination of chlorine content
GB/T 12687.3-2010 Chemical analysis methods of rare earth nitrate for growth regulator for plant.Part 3: Determination of the water insoluble matter content.Gravimetry
GB/T 12687.4-1990 Chemical analysis of nitrate of rare earth for agriculture--Determination of mercury content--Flame atomic absorption spectrophotometric method
GB/T 12687.5-1990 Chemical analysis of nitrate of rare earth for agriculture--Determination of chrome content-sys--Diphenyl carbazide spectrophotometric method
GB/T 12687.6-1990 Chemical analysis of nitrate of rare earth for agriculture--Determination of lead and cadmium content--Flame atomic absorption spectrophotometric method
GB/T 12687.7-1990 Chemical analysis of nitrate of rare earth for agriculture--Determination of thorum content--Spectrometric method with CL-TBP levextred resin separation
GB/T 12687.8-1990 Chemical analysis of nitrate of rare earth for agriculture--Determination for the water insoluble matter content--Gravimetric method