GB/T 8574-2010
Determination of potassium content for compound fertilizers potassium tetraphenylborate gravimetric method
GB/T 8574-2024
Determination of potassium content for compound fertilizers
GB 6857-2008
pH primary reagent - Potassium hydrogen phthalate
GB/T 1291-2008
Chemical reagent - Potassium hydrogen phthalate
GB 1257-2007
Working chemical - Potassium hydrogen phthalate
GB 10730-2008
Primary chemical - Potassium hydrogen phthalate
NY/T 889-2004
Determination of exchangeable potassium and non-exchangeable potassium content in soil
NY/T 2540-2014
Fertilizers - Determination of potassium content
GB/T 6730.49-2017
Iron ores—Determination of potassium content—Flame atomic absorption spectrometric method
GB/T 14640-2017
Determination of potassium and sodium in water for industrial circulating cooling system and boiler
NY/T 2273-2012
SN/T 3809-2014
Determination of potassium content in potassium chloride and potassium sulphate - X-ray fluorescence spectrometry
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
MT/T 1074-2008
Classification for alkali metal(potassium,sodium)content in coal'
GB/T 5195.5-2017
Fluorspar—Determination of total sulfur content—Pipe furnace combustion iodic acid potassium titration method
MT/T 1074-2007
GB/T 22662.3-2008
Chemical analysis methods of potassium fluotitanate - Part 3: Determination of potassium fluotitanate content - By ammonium iron sulphate dodecahydrate titration volumetric method
NY/T 2420-2013
Determination of total potassium in plant-Flame photometry method
NY/T 1977-2010
GB/T 8574-2002
Determination of potassium content for compound fertilizers—Potassium tetraphenylborate gravimetric method