GB/T 40461-2021
Determination of sodium content for fertilizers
GB/T 12658-2008
Paper, board and pulp - Determination of sodium content
YB/T 5325-2015
Determination of content of sodium ferrocyanide
NY/T 4077-2022
GB/T 14640-2017
Determination of potassium and sodium in water for industrial circulating cooling system and boiler
GB/T 6730.75-2017
Iron ores—Determination of sodium content—Flame atomic absorption spectrometric method
GB/T 14949.7-2024
Manganese ores—Determination of sodium and potassium content—Flame atomic absorption spectrometric method
MT/T 1074-2007
NY/T 1972-2010
GB/T 23835.8-2009
Lithium perchlorate anhydrous - Part 8: Determination of potassium and sodium content
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
GB/T 18608-2012
Determination of Nickel,Vanadium,Iron,and Sodium in Crude Oils and Residual Fuels by Flame Atomic Absorption Spectrometry
GB/T 21126-2007
Determination of sodium formaldehyde sulfoxylate in grain products
JC/T 2336-2015
Determination of silicon,potassium,sodium,calcium,magnesium and iron content in carbon fiber
YB/T 4020-2007
Determination for the cyanide content of sodium ferrocyanade
DB22/T 2362-2015
YB/T 4726.13-2022
SN/T 1732.8-2014
Pyrotechnic composition used for fireworks and firecracker - Part 8:Determination of natrium content
YB/T 4709-2018
GB/T 15402-1994
Fruits, vegetables and derived products—Determination of sodium and potassium