HG/T 5357-2018
Phosphorus pentoxide for industrial use
GB/T 23843-2009
Inorganic chemical products - General method for the determination of total phosphorus(V)oride content
GB/T 2305-2000
Chemical reagent--Phosphorus(V) oxide
GB/T 1871.1-1995
Phosphate rock and concentrate--Determination of phosphrous pentoxide content--Quinoline phosphomolybdate gravimetric and volumetric methods
DB23/T 3327-2022
YB/T 4219-2010
Vanadium pentoxide-Determination of phosphorus content-The molybdobismuthylphosphoric blue spectrophotometric method
GBZ/T 300.45-2017
Determination of toxic substances in workplace air-Part 45: Phosphorus pentoxide and phosphorus pentasulfide
YB/T 6285-2024
YB/T 5331-2009
YB/T 4248-2011
DB53/T 477-2013
GB/T 6609.17-2004
Chemical analysis methods and determination of physical performance of alumina--Determination of phosphorus pentoxide content--Molybdenum blue spectrophotometric method
YB/T 5328-2009
DB53/T 566-2014
YB/T 4583.1-2017
Mulite-Determination of silicon,ferrous,calsium,magnesium,mengnese and phosphorous content-Inductively coupled plasma atomic emission spectrometry
DB51/T 2045-2015
YB/T 4218-2010
Vanadium pentoxide-Determination of vanadium pentoxide content-The ammonium persulfate oxidation titrimetric method
HG/T 5356\uff5e5358-2018
HS/Z 53-2016
Determination of V(2)O(5)content in residues containing vanadium-X-ray fluorescence spectrometry method
HS/T 53-2016