GB/T 8574-2010
Determination of potassium content for compound fertilizers potassium tetraphenylborate gravimetric method
GB 1886.340-2021
NY/T 2273-2012
NY/T 1977-2010
GB/T 8574-2002
Determination of potassium content for compound fertilizers—Potassium tetraphenylborate gravimetric method
SN/T 3793-2014
Determination of total phosphorus,potassium content in compound fertilizers - X-ray fluorescence spectrometry
GB/T 5195.15-2017
Fluorspar—Determination of calcium,aluminum,silicon,phosphorus,sulfur,potassium,iron,barium and lead content—Wavelength dispersive X-ray fluorescence spectrometric method
GB/T 8574-1988
Determination of potassium content for compound fertilizers potassium tetraphenylborate gravimetric method
GB 25562-2010
KS M 5318-2005(2018)
Primer paint:Ready-mixed, undercoat for wood, exterior, white and light tints
HG/T 2957.7-2004
NB/T 11260-2023
Determination of silicon,aluminum,iron,calcium,magnesium,sodium,potassium,phosphorus,titanium and manganese in coal gangue—X-ray fluorescence spectrometric method
DB13/T 5589-2022
GB/T 22661.10-2008
Chemical analysis methods of potassium fluoborade - Part 10: Determination of phosphorus pentoxide content - Molybdenum blue photometric method
GB/T 38812.3-2020
Direct reduced iron—Determination of silicon, manganese, phosphorus, vanadium, titanium, copper, aluminum, arsenic, magnesium, calcium, potassium and sodium content—Inductively coupled plasma atomic emission spectrometric method
GB/T 22662.9-2008
Chemical analysis methods of potassium fluotitanate - Part 9: Determination of phosphoruo content - Molybdenum blue photometric method
DB45/T 1342-2016
DB13/T 5590-2022
GB/T 24519-2009
Manganese ores - Determination of magnesium, aluminum, silicon, phosphorus, sulfur, potassium, calcium, titanium, manganese, iron, nickel, copper, zinc, barium and lead content - Wavelength dispersive X-ray fluorescence spectrometric method
DB53/T 574-2014