GB/T 12687.2-2010
Chemical analysis methods of rare earth nitrate for growth regulator plant.Part 2: Determination of chlorine content (English Version)
- Standard No.
- GB/T 12687.2-2010
- Language
- Chinese, Available in English version
- Release Date
- 2011
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2012-12
- Latest
- GB/T 12687.2-2010
- Replace By
- SAE AS 20708/39B-2011
- Replace
- GB/T 12687.2-1990
- Scope
- This part of GB/T 12687 specifies the method for the determination of chlorine in rare earth nitrate plant growth regulators. This section applies to the determination of the total chlorine content of rare earth nitrate plant growth regulators. Measuring range of method 1: 0.005 0% to 0.50%; Measuring range of method 2: >0.50% to 10.00%.
GB/T 12687.2-2010 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 12687.2-2010 -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