SN/T 0951-2010
进出口仲钨酸铵中三氧化钨含量的测定
Determination of tungsten trioxide content in ammonium paratungstate for import and export
2010-05-27
GB/T 6150.1-2023
钨精矿化学分析方法 第1部分:三氧化钨含量的测定 钨酸铵灼烧重量法
Methods for chemical analysis of tungsten concentrates—Part 1:Determination of tungsten trioxide content—Ammonium tungstate igniting gravimetric method
2023-11-27
GB/T 26019-2010
高杂质钨矿化学分析方法 三氧化钨量的测定 二次分离灼烧重量法
Methods for chemical analysis of high impurity tungsten mineral - Determination of tungsten trioxide content - Twice separation and igniting gravimetric method
2011-01-10
GB/T 7731.1-2021
钨铁 钨含量的测定 辛可宁重量法和硝酸铵重量法
Ferrotungsten—Determination of tungsten content—Cinchonine gravimetric method and ammonium nitrate gravimetric method
2021-08-20
GB/T 1819.9-2017
锡精矿化学分析方法 第9部分:三氧化钨量的测定 硫氰酸盐分光光度法
Methods for chemical analysis of tin concentrates—Part 9:Determination of tungsten trioxide content—The thiocyanate spectrophotometric method
2017-09-29
YS/T 358.4-2011
钽铁、铌铁精矿化学分析方法 第4部分:三氧化钨量的测定 硫氰酸盐分光光度法
Methods for chemical analysis of tantalite,columbite concentrate—Part 4:Determination of tungsten trioxide content—Thiocyanate spectrophotometric method
2011-12-20
SN/T 1031.3-2001
出口粗氧化锑化学分析方法 三氧化二锑含量的测定
Method for the chemical analysis of crude antimony trioxide for export -- Determination of antimony trioxide content
2001-12-30
GB/T 3253.8-2009
锑及三氧化二锑化学分析方法 三氧化二锑量的测定 碘量法
Methods for chemical analysis of antimony and antimony trioxide - Determination of antimony trioxide content - Iodine titration method
2009-04-08
YS/T 1014.1-2014
三氧化二铋化学分析方法 第1部分:三氧化二铋量的测定 Na2EDTA滴定法
Methods for chemical analysis of bismuth trioxide—Part 1:Determination of bismuth trioxide content—Na2EDTA titrimetric method
2014-10-14
SN/T 0837.1-2011
进出口三氧化二砷化学分析方法 第1部分:三氧化二砷含量的测定
Method for chemical analysis of arsenic trioxide for import and export-Part 1:Determination of arsenic trioxide content
2011-02-25
BS 4267-6-1987
Ammonium nitrate-Method for determination of water content
硝酸铵 水含量的测定方法
1987-09-30
BS 4267-8-1987
Ammonium nitrate-Methods for determination of chloride content
硝酸铵
1987-09-30
BS 4267-9-1987
Ammonium nitrate-Method for determination of sulphate content
硝酸铵
1987-09-30
BS 4267-7-1987
Ammonium nitrate-Methods for determination of nitrite content
硝酸铵
1987-09-30
GB/T 6150.14-2008
钨精矿化学分析方法 锰量的测定 硫酸亚铁铵容量法和火焰原子吸收光谱法
Methods for chemical analysis of tungsten concentrates - Determination of manganese content - The ammonium ferrous sulfate volumetric method and flame atomic absorption spectrometric method
2008-03-31
KS D 1812
철 및 강. 텅스텐 정량 방법
钢铁 - 测定钨含量的方法
2019-12-31
KS D 1812
철 및 강 — 텅스텐 정량 방법
钢铁 - 测定钨含量的方法
2024-11-28
GB/T 1880-1995
磷矿石和磷精矿中三氧化硫含量的测定 重量法
Phosphate rock and concentrate--Determination of sulfur trioxide content--Gravimetric method
1995-12-20
BS 4267-2-1988
Ammonium nitrate-Method for determination of total nitrogen content
硝酸铵
1988-07-29
BS 4267-1-1988
Ammonium nitrate-Method for determination of ammoniacal nitrogen content
硝酸铵
1988-07-29