GB/T 14640-2017
Determination of potassium and sodium in water for industrial circulating cooling system and boiler
GB/T 14949.7-2024
Manganese ores—Determination of sodium and potassium content—Flame atomic absorption spectrometric method
GB/T 23835.8-2009
Lithium perchlorate anhydrous - Part 8: Determination of potassium and sodium content
GB/T 4333.1-2019
Ferrosilicon—Determination of silicon content—Perchloric acid dehydration gravimetric method and potassium fluosilicate volumetric method
SN/T 3809-2014
Determination of potassium content in potassium chloride and potassium sulphate - X-ray fluorescence spectrometry
GB/T 13748.17-2005
Chemical analysis methods of magnesium and magnesium alloys Determination of kalium content and natrium content Flame atomic absorption spectrophotometric method
JC/T 2336-2015
Determination of silicon,potassium,sodium,calcium,magnesium and iron content in carbon fiber
YB/T 4726.13-2022
HG/T 2957.7-2004
SJ/T 11556-2015
Determination of Ag、Au、Ca、Cu、Fe、K、Na concentration of nitric acid by AAS
SN/T 2725-2010
Determination of sodium,potassium and iron content in coal tar oil and anthracene oil-Atomic absorption spectrometric method
GB/T 12658-1990
Paper, board and pulp—Determination of potassium and sodium content
GB/T 23835.8-2009\
DB37/T 1302-2009
20242692-T-607
Leather and fur—Chemical tests—Determination of phthalate content
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
DB22/T 1691-2012
BS ISO 9231:2008
Milk and milk products. Determination of the benzoic and sorbic acid contents
ISO 9231:2008
Milk and milk products — Determination of the benzoic and sorbic acid contents