GB/T 6730.37-2017
Iron ores—Determination of cobalt content—4-[(5-chloro-2-pyridyl)azo]-1,3-diamino-benzene spectrophotometric method
YS/T 1288.4-2018
Methods for chemical analysis of high purity zinc-Part 4: Determination of trace impurity elements content-Glow discharge mass spectrometry
GB/T 13748.4-2013
Chemical analysis methods of magnesium and magnesium alloys - Part 4:Determination of manganese content - Periodate spectrophotometric method
YS/T 229.4-2013
Chemical analysis methods for high purity lead—Part 4:Determination of trace impurity elements content—Glow discharge mass spectrometry
HB/Z 5218.4-2004
Methods for chemical analysis of aluminium alloys-Part 4:Determination of manganese content by potassium periodate spectrophotometric method
YS/T 520.2-2007
Chemical analysis of gallium—Part 2:Determination of lead content—The 4-(2-pyridy lazo)-resorcinol spectrophotometric method
YS/T 244.4-2008
Chemical analysis methods of high purity aluminum—Part 4:Determination of gallium content by butylrhodamine B photometric method
YS/T 1345.4-2020
Methods for chemical analysis of bismuth-rich lead-Part 4:Determination of antimony content-The flame atomic absorption spectrometry and cerium sulfate titration
SH/T 1499.5-1997
Pure adipic acid--Determination of content of iron--2,2'-Bipyridyl spectrophotometric method
GB/T 9984.6-2004
Sodium tripolyphosphate for industrial use—-Determination of iron content—-2,2'-bipyridyl spectrophotometric method
KS M ISO 2992-2017(2022)
Ammonium sulphate for industrial use — Determination of iron content — 2,2'-bipyridyl photometric method
KS M ISO 2992-2017
Ammonium sulphate for industrial use — Determination of iron content — 2,2'-bipyridyl photometric method
\u0413\u041e\u0421\u0422 32468-2013
Urea for industrial use. Determination of iron content. Photometric method with use of 2,2'-bipyridyl
GB/T 9984.6-1988
Determination of iron content in industrial sodium tripolyphosphate--2,2'-Bipyridyl spectrophotometric method
\u0413\u041e\u0421\u0422 30582-98
Hydrochloric acid for industrial use. Determination of iron content 2,2'-bipyridyl spectrophotometric method
KS M 1981-2002(2007)
Acetaldehyde for industrial usedetermination of iron content-2,2′-bipyridyl photometric method
KS M 1925-2002(2007)
Urea for industrial use-Determination of iron content-2,2′-bipyridyl photometric method
KS M ISO 909-2002(2007)
Hydrochloric acid for industial use-Determination of iron content -2, 2′-bipyridyl spectrophotometric method
\u0413\u041e\u0421\u0422 \u0420 \u0418\u0421\u041e 1390/6-93
Maleic anhydride for industrial use. Methods of test. Part 6. Determination of iron content 2,2'-bipyridyl photometric method
KS M 1919-2002(2007)
Maleic anhydride for industrial use-Methods of test-Determination of iron content-2,2′-bipyridyl photometric method