YS/T 1686.1-2024
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
HB/Z 5107.5-2004
Methods for analysis of chemical oxidation solution for magnesium alloy-Part 5:Determination of glacial acetic acid content in aluminum potassium sulfate oxidation solution by potentiometric method
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
NY/T 889-2004
Determination of exchangeable potassium and non-exchangeable potassium content in soil
HG/T 4007~4008-2008
NY/T 2540-2014
Fertilizers - Determination of potassium content
NY/T 2273-2012
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
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'
MT/T 1074-2007
GB/T 5195.5-2017
Fluorspar—Determination of total sulfur content—Pipe furnace combustion iodic acid potassium titration method
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
T/GRM 027-2021
NY/T 2420-2013
Determination of total potassium in plant-Flame photometry method
GB/T 17767.3-2010
Determination of organic-inorganic compound fertilizers - Part 3: Total potassium content