Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YB/T 5328-2006 Methods for chemical analysis of vanadium pentoxide The potassium permanganate oxidation-ammonium ferrous sulfate titrimetric method for the determination of vanadium pentoxide content $184.00 via email in 1~3 business day superseded
YB/T 5329-2006 Methods for chemical analysis of vanadium pentoxide The molybdenum blue spectrophotometric method for the determination of silicon content $184.00 via email in 1~3 business day superseded
YB/T 5330-2006 Methods for chemical analysis of vanadium pentoxide The ortho-phenanthroline spectrophotometric method for the determination iron content $184.00 via email in 1~3 business day superseded
YB/T 5331-2006 Methods for chemical analysis of vanadium pentoxide The co-precipitation-extraction molybdenum blue spectrophotometric method for the determination of phosphorus content $184.00 via email in 1~3 business day superseded
YB/T 5332-2006 Methods for chemical analysis of vanadium pentoxide The barium svlphate gravimetric method for the determination of sulphur content $184.00 via email in 1~3 business day superseded
YB/T 5333-2006 Methods for chemical analysis of vanadium pentoxide The oscillopolarographic method for the determination of sulphur content $184.00 via email in 1~3 business day superseded
YB/T 5334-2006 Methods for chemical analysis of vanadium pentoxide The AgDDTC spectrophotometric method for the determination of arsenic content $184.00 via email in 1~3 business day superseded
YB/T 5335-2006 Methods for chemical analysis of vanadium pentoxide The atomic absorption spectrophotometric method for the determination of sodium oxide and potassium oxide contents $184.00 via email in 1~3 business day superseded
YS/T 525-2006 Antimony trisulfide $184.00 via email in 1~3 business day superseded
YS/T 547-2007 High-pure tantalum pentoxide $160.00 via email in 1~3 business day valid
YS/T 548-2007 High-pure niobium pentoxide $120.00 via email in 1~3 business day valid
YS/T 568.1-2006 Zirconium and hafnium oxides--Determination of zirconium(hafnium)oxide contents--Mandelic acid gravimetric method $184.00 via email in 1~3 business day superseded
YS/T 568.10-2006 Hafnium oxides--Determination of manganese oxide content--Potassium periodate photometric method $184.00 via email in 1~3 business day superseded
YS/T 568.11-2006 Zirconium oxide--Determination of nickel content--2 2-furil dioxime absorption photometric method $184.00 via email in 1~3 business day superseded
YS/T 572-2006 Technical requirements of commercial purity beryllium oxide powder $260.00 via email in 1~3 business day valid
YS/T 572-2007 Beryllium oxide $140.00 via email in 1~3 business day abolished
YS/T 633-2007 Cobaltosic Oxide $464.00 via email in 1~3 business day superseded
YS/T 639-2007 Pure molybdenum trioxide $140.00 via email in 1~3 business day superseded
* Related standard quantity: * Page quantity: * Current: * First Previous [2][3][4][5][6][7] Next End



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