NY/T 4429-2023
HG/T 5859-2021
Determination of component content for 2-biphenylyl diphenyl phosphate (BDP) used in triacetyl cellulose (TAC) film
GB/T 6730.30-2017(\u82f1\u6587\u7248)
铁矿石 铬含量的测定 二苯基碳酰二肼分光光度法
GB/T 6730.34-2017(\u82f1\u6587\u7248)
铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法
GB/T 4333.6-2019
Ferrosilicon—Determination of chromium content—Diphenylcarbazide spectrophotometric method
GB/T 38216.1-2019
Steel slag—Determination content of chromic oxide—Diphenyl carbazide spectrophotometry method
GB/T 6730.30-2017e
Iron ores—Determination of chromium content—Diphenyl carbazide spectrophotometric method
GB/T 6730.30-2017
Iron ores—Determination of chromium content—Diphenyl carbazide spectrophotometric method
GB/T 23843-2009
Inorganic chemical products - General method for the determination of total phosphorus(V)oride content
GB/T 1871.1-1995
Phosphate rock and concentrate--Determination of phosphrous pentoxide content--Quinoline phosphomolybdate gravimetric and volumetric methods
GB/T 10209.2-2010
Determination of monoammonium phosphate and diammonium phoshpate - Part 2: Phosphorus content
DB23/T 3327-2022
YB/T 4219-2010
Vanadium pentoxide-Determination of phosphorus content-The molybdobismuthylphosphoric blue spectrophotometric method
GB/T 6609.8-2004
Chemical analysis methods and determination of physical performance of alumina--Determination of chromium sesquioxide content--Diphenyl carbazide photometric method
YS/T 445.12-2019
Methods for chemical analysis of silver concentrates-Part 12:Determination of chromiunl content-Diphenylcarbazide spectrophotometry
SN/T 3808-2014
Determination of total phosphorus content in diammonium phosphate - X-ray fluorescence spectrometry
DB53/T 477-2013
GB/T 1876-1995
Phosphate rock and concentrate--Determination of carbon dioxide content--Gasometric method
YS/T 520.9-2007
Chemical analysis of gallium—Part 9:Determination of germanium content—The phenylfluorone-polyethylene glycol octyl phenyl ether extraction spectrophotometric method
YB/T 5331-2009