GB/T 36690-2018
Method of determination for 26 elements(copper,nickel,lead,zinc,cadmium,chrome etc.) content in the sludge from industrial waste liquid treatment
GB/T 12684.10-1990
Boric acid for industrial use—Determination of chromium content
HB/Z 5109.6-2001
GB/T 14849.2-2007
Methods for chemical analysis of silicon metal - Part 2:Determination of aluminum content - Chrome azurol S spectrophotometric method
T/HNSXHJJYJH T/HCER001-2019
GB/T 14849.11-2016
Methods for chemical analysis of silicon metal—Part 11:Determination of chromium content—1,5-Diphenylcarbohydrazide spectrophotometric method
DL 422.4-1991
GB/T 12687.5-1990
Chemical analysis of nitrate of rare earth for agriculture—Determination of chrome content-sys—Diphenyl carbazide spectrophotometric method
\u0413\u041e\u0421\u0422 \u0420 50706.4-94
Nitric acid for industrial use. Determination of chloride ions content. Potentiometric method
T/CNIA 0119-2021
SH/T 1145-1992
KS M ISO 3199-2015(2020)
Sodium chlorate for industrial use-Determination of chlorate content-Dichromate titrimetric method
DL 425.6-1991
T/CNIA 0120-2021
DB63/T 1430-2015
DB63/T 1431-2015
KS M ISO 3360-2017(2022)
Phosphoric acid and sodium phosphates for industrial use(including foodstuffs) — Determination of fluorine content — Alizarin complexone and lanthanum nitrate photometric method
\u0413\u041e\u0421\u0422 29304-92
Ammonium nitrate for industrial use. Method for determination of ammoniacal nitrogen content (titrimetric) after distillation
\u0413\u041e\u0421\u0422 29302-92
Ammonium nitrate for industrial use. Method for determination of total nitrogen content (titrimetric) after distillation
DB63/T 1432-2015