GB/T 10209.2-2010
Determination of monoammonium phosphate and diammonium phoshpate - Part 2: Phosphorus content
GB/T 32784-2016
Pig iron contenting nickel—Determination of chromium content—Ammonium per sulfate-ammonium ferrous sulfate titration method
GB/T 42333-2023
Soil and stream sediment—Determination of iodine content—Pressurized ammonia extraction inductively coupled plasma mass spectrometry
GB/T 10209.1-2008
Determination of monoammonium phosphate and diammonium phoshpate - Part 1: Total nitrogen content
GB/T 39701-2020
Limit and test method of ammonium ion content in fly ash
DB43/T 1655-2019
GB/T 4702.1-2016
Chromium metal—Determination of chromium content—The ammonium ferrous sulfate titrimetric method
DB34/T 2373-2015
GB/T 24583.1-2019
Vanadium-nitrogen—Determination of vanadium content—Ammonium ferrous sulfate titration method
GB/T 4701.1-2009
Ferrotitanium - Determination of titanium content - The ammonium ferric sulfate titration method
GB/T 6730.32-2013
Iron ores - Determination of vanadium content - The ammonium ferrous sulfate titrimetric method
GB/T 7731.1-2021
Ferrotungsten—Determination of tungsten content—Cinchonine gravimetric method and ammonium nitrate gravimetric method
YB/T 4908.1-2021
Vanadium-aluminum alloy-Determination of vanadium content-Ammonium persulfate oxidation-ammonium ferrous sulfate titrimetric method
GB/T 6730.23-2006
Iron ores - Determination of titanium content - The ferric ammonium sulfate titrimetric method
DB37/T 2735-2015
GB/T 30931-2014
Determination of Benzalkonium Chloride in cosmetics―High performance liquid chromatography
GB/T 2947-2002
Determination of free water in urea and ammonium nitrate by karl fischer method
GB/T 8704.5-2020
Ferrovanadium—Determination of vanadium content—The ammonium ferrous sulfate titrimetric method and the potentiometric titrimetric method
GB/T 10209.2-2001
Determination of available phosphous content for monoammonium phosphate and diammonium phosphate
GB/T 1506-2016
Manganese ores—Determination of manganese content—Potentiometric method and ammonium iron(Ⅱ) sulphate titrimetric method