GB/T 8574-2010
Determination of potassium content for compound fertilizers potassium tetraphenylborate gravimetric method
GB/T 8574-2002
Determination of potassium content for compound fertilizers—Potassium tetraphenylborate gravimetric method
GB/T 8574-1988
Determination of potassium content for compound fertilizers potassium tetraphenylborate gravimetric method
BS ISO 17319:2015
Fertilizers and soil conditioners. Determination of water-soluble potassium content. Potassium tetraphenylborate gravimetric method
ISO 17319:2015
Fertilizers and soil conditioners — Determination of water-soluble potassium content — Potassium tetraphenylborate gravimetric method
DB63/T 1423-2015
GB/T 6730.8-2016(\u82f1\u6587\u7248)
铁矿石 亚铁含量的测定 重铬酸钾滴定法
KS M ISO 5318-2007
Fertilizers-Determination of potassium content-Potassium tetraphenylborate gravimetric method(reference method)
GB/T 22661.3-2008
Chemical analysis methods of potassium fluoborade - Part 3: Determination of potassium fluoborade content - Distillation-sodium hydrogen oxidizes titration volumetric method
BS 5551-4.3.3:1984
Fertilizers. Chemical analysis. Determination of potassium-Method for determination of water-soluble potassium content (potassium tetraphenylborate gravimetric method: reference method)
GB/T 22661.8-2008
Chemical analysis methods of potassium fluoborade - Part 8: Determination of free borade content - Distillation-sodium hydrogen oxidizes titration volumetric method
GB/T 22661.2-2008
Chemical analysis methods of potassium fluoborade - Part 2: Determination of moisture content - By gravimetric method
GB/T 22661.9-2008
Chemical analysis methods of potassium fluoborade - Part 9: Determination of chloride content - Distillation mercury nitration volumetric method
ISO 5318:1983
Fertilizers — Determination of potassium content — Potassium tetraphenylborate gravimetric method (Reference method)
GB/T 22661.5-2008
Chemical analysis methods of potassium fluoborade - Part 5: Determiantion of calcium content - Flame atomic absorption spectrometric method
GB/T 22661.7-2008
Chemical analysis methods of potassium fluoborade - Part 7: Determiantion of sodium content - Flame atomic absorption spectrometric method
GB/T 22661.4-2008
Chemical analysis methods of potassium fluoborade - Part 4: Determiantion of magnesium content - Flame atomic absorption spectrometric method
GB/T 22661.6-2008
Chemical analysis methods of potassium fluoborade - Part 6: Determination of silica content - Molybdenum blue photometric method
ISO 2051:1976
Potassium chloride for industrial use — Determination of potassium content — Potassium tetraphenylborate gravimetric method
GB/T 22661.10-2008
Chemical analysis methods of potassium fluoborade - Part 10: Determination of phosphorus pentoxide content - Molybdenum blue photometric method