GB/T 656-2003
Chemical reagent--Ammonium dichromate
HG/T 5217-2017
Ammonium dichromate for industrial use
GB/T 6730.8-2016(\u82f1\u6587\u7248)
铁矿石 亚铁含量的测定 重铬酸钾滴定法
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
FED O-A-498B Notice 2-Validation 1
Ammonium Dichromate, Photographic, (Ammonium Bichromate)
HG/T 5214~5217-2017
GB/T 4702.1-2016
Chromium metal—Determination of chromium content—The ammonium ferrous sulfate titrimetric method
GB/T 32784-2016
Pig iron contenting nickel—Determination of chromium content—Ammonium per sulfate-ammonium ferrous sulfate titration method
GB/T 656-1977
Chemical reagents--Ammonium dichromate
DB34/T 2580-2015
GB/T 4699.2-2008
Ferrochromium and ferrosilicochromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method
GB/T 22662.3-2008
Chemical analysis methods of potassium fluotitanate - Part 3: Determination of potassium fluotitanate content - By ammonium iron sulphate dodecahydrate titration volumetric method
GB/T 42513.1-2023
Methods for chemical analysis of nickel alloys—Part 1: Determination of chromium content—Potentiometric titration method with ammonium iron(II) sulfate
SN/T 0951-2010
Determination of tungsten trioxide content in ammonium paratungstate for import and export
HB/Z 5109.1-2001
GB/T 6150.1-2023
Methods for chemical analysis of tungsten concentrates—Part 1:Determination of tungsten trioxide content—Ammonium tungstate igniting gravimetric method
YS/T 1330.2-2019
Methods for chemical analysis of cobalt-chromium ceramic alloy-Part 2: Determination of chromium content-Ammonium ferrous sulfate titration
GB/T 5059.1-2014
Ferromolybdenum―Determination of molybdenum content―Lead molybdate gravimetric method,ammonium metavanadate titration method and 8-hydroxyquinoline gravimetric method
EJ/T 1212.5-2008
Test methods for analysis of sintered gadolinium oxide-uranium dioxide pellets-Part 5:Determination of uranium content by ferrous sulfate reduction in phosphoric acid and dichromate titration method
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