GB/T 24583.1-2019(\u82f1\u6587\u7248)
钒氮合金 钒含量的测定 硫酸亚铁铵滴定法
GB/T 20433-2006
Photography―Processing chemicals―Specifications for ammonium thiosulfate solution
GB/T 6730.42-2017(\u82f1\u6587\u7248)
铁矿石 铅含量的测定 双硫腙分光光度法
GB/T 32784-2016
Pig iron contenting nickel—Determination of chromium content—Ammonium per sulfate-ammonium ferrous sulfate titration method
GB/T 6276.7-2010
Determination of ammonium hydrogen carbonate for industrial use—Part 7:Arsenic content—Silver diethyl dithiocarbamate photometric method
YB/T 4908.1-2021
Vanadium-aluminum alloy-Determination of vanadium content-Ammonium persulfate oxidation-ammonium ferrous sulfate titrimetric method
GB/T 6276.7-1986
Ammonium hydrogen carbonate for industrial use—Determination of arsenic content—Silver diethyl dithiocarbamate photometric method
DB37/T 2735-2015
YB/T 4218-2010
Vanadium pentoxide-Determination of vanadium pentoxide content-The ammonium persulfate oxidation titrimetric method
SN/T 3810-2014
Determination of nitrogen content in urea and ammonium sulphate - X-ray fluorescence spectrometry
GB/T 4699.2-2008
Ferrochromium and ferrosilicochromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method
KS M ISO 3619-2019
Photography — Processing chemicals — Specifications for ammonium thiosulfate solution
DB51/T 2037-2015
SN/T 4376-2015
HB 5220.15-2008
Methods for chemical analysis of superalloys-Part 15:Determination of chromium content by ammonium persulfate oxidation-ammonium iron (Ⅱ) volumetric method
HB/Z 5107.8-2004
Methods for analysis of chemical oxidation solution for magnesium alloy-Part 8:Determination of ammonia sulfate contentin glacial acetic acid oxidation solution by barium sulfate gravimetric method
ISO 5786:1978
Ammonium sulphate for industrial use — Determination of arsenic content — Silver diethyldithiocarbamate photometric method
BS ISO 3619:1994
Photography. Processing chemicals. Specification for ammonium thiosulfate solution
ISO 3619:1994
Photography — Processing chemicals — Specifications for ammonium thiosulfate solution
HB/Z 5107.14-2004
Methods for analysis of chemical oxidation solution for magnesium alloy-Part 14:Determination of ammonia sulfate content in potassium bichromate and magnesium sulfate oxidation solution by potentiometric method