GB/T 35107-2017
Determination of soluble humic acid content for mineral humic acid fertilizers
GB/T 34766-2017
Determination of total humic acid content from mineral source
GB/T 35106-2017
Determination of unbound humic acid content from mineral source
SN/T 0962-2010
Determination of sodium tungstate content in sodium tungstate for import and export
GB/T 30906-2014
Determination of sodium tripolyphosphate content of sodium tripolyphosphate―Ion chromatography
NY/T 1867-2010
Determination of humus content in soil
GB/T 13248-2008
Rubber and rubber latices - Determination of manganese content - Sodium periodate photometric methodes
GB/T 8296-2008
Raw natural rubber and rubber latices - Determination of manganese content - Sodium periodate photmetric methods
SN/T 3927-2014
Determination of sodium thiocyanate in dairy products for export
GB/T 223.63-2022
Iron, steel and alloy—Determination of manganese content—Sodium (potassium) periodate spectrophotometric method
GB/T 6730.6-2016
Iron ores—Determination of metallic iron content—Ferric chloride-sodium acetate titrimetric method
GB/T 32226-2015
Specific solid enzyme (ALD, TIM, GDH)reagent for determination of fructose diphosphate (FDP)
GB/T 4348.1-2013
Sodium hydroxide for industrial use - Determination of sodium hydroxide and sodium carbonate content
QB/T 5219-2018
Determination of sodium gualenate in toothpaste-High performance liquid chromatography
YB/T 4582.6-2017
Ferrosilicon nitride-Determination of manganese content-Sodium periodate spectrophotometric method
SN/T 4376-2015
SN/T 0962-2000
Method for the determination of sodium tungstate content in sodium tungstate for import and export
DB34/T 2372-2015
GB/T 9984.11-2004
Sodium tripolyphosphate for industrial use-Determination of I type content
HB/Z 5088.2-1999