GB/T 40461-2021
Determination of sodium content for fertilizers
SN/T 0838.5-1999
SN/T 0838.1-1999
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
SN/T 0838.3-2015
Determination of nickel in boric acid and borax for import and export - Flame atomic absorption spectrometry
SN/T 0838.4-2015
Determination of manganese in boric acid and borax for import and export - Flame atomic absorption spectrometry
SN/T 0838.2-2015
Determination of cobalt in boric acid and borax for import and export - Flame atomic absorption spectrometry
SN/T 0838.1-2015
Determination of chromium in boric and borax for import and export - Flame atomic absorption spectrometry
SN/T 0838.5-2015
Determination of copper in boric acid and borax for import and export - Flame atomic absorption spectrometry
NY/T 1972-2010
GB/T 23835.8-2009
Lithium perchlorate anhydrous - Part 8: Determination of potassium and sodium content
SN/T 0838.2-1999
SN/T 0838.3-1999
SN/T 0838.4-1999