HG/T 2830-2009
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
MT/T 1074-2007
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
HG/T 2830-1997
JC/T 2336-2015
Determination of silicon,potassium,sodium,calcium,magnesium and iron content in carbon fiber
GB/T 13885-2017
Determination of the contents of calcium, copper, iron, magnesium, manganese, potassium, sodium and zinc in feeds—Method using atomic absorption 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
YB/T 4726.13-2022
SN/T 1014.1-2001
YB/T 4709-2018
GB/T 15402-1994
Fruits, vegetables and derived products—Determination of sodium and potassium
SJ/T 11556-2015
Determination of Ag、Au、Ca、Cu、Fe、K、Na concentration of nitric acid by AAS
GB/T 22661.7-2008
Chemical analysis methods of potassium fluoborade - Part 7: Determiantion of sodium content - Flame atomic absorption spectrometric method
YB/T 4726.12-2021
Ferric-containing dust and sludge—Determination of manganese oxide content-The potassium periodate (sodium) spectrophotometric method
DB63/T 1421-2015
DB13/T 2856-2018
GB/T 14640-2008
Water used in industrial circulating cooling system and boiler—Determination of potassium and sodium