GB/T 24583.1-2019(\u82f1\u6587\u7248)
钒氮合金 钒含量的测定 硫酸亚铁铵滴定法
GB/T 6730.38-2017(\u82f1\u6587\u7248)
铁矿石 钴含量的测定 亚硝基-R盐分光光度法
GB/T 6730.8-2016(\u82f1\u6587\u7248)
铁矿石 亚铁含量的测定 重铬酸钾滴定法
GB/T 6730.7-2016(\u82f1\u6587\u7248)
铁矿石 金属铁含量的测定 磺基水杨酸分光光度法
HG/T 4673-2014
Nitrosyl sulfuric acid for industrial use
GB/T 6730.38-2017e
]Iron ores—Determination of cobalt content—Nitroso-R salt spectrophotometric method
GB/T 6730.38-2017
Iron ores—Determination of cobalt content—Nltroso-R salt spectrophotometric method
GB/T 23834.1-2009
Chemical analysis method for stannous sulfate - Part 1: Determination of stannous sulfate content - Volumetric method of potassium dichromate
T/ZZB Q038-2021
T/ZACA 038-2021
GB/T 23834.4-2009
Chemical analysis method for stannous sulfate - Part 4: Determination of lead and copper content - Flame atomic absorption spectrometry
GB/T 23834.6-2009
Chemical analysis method for stannous sulfate - Part 6: Determination of iron content - 1,10-phenanthroline spectrophotometry
HB 5220.26-2008
Methods for chemical analysis of superalloys-Part 26:Determination of cobalt content by nitroso-R-salt photometric method
HB/Z 5094.1-2004
Methods for analysis of acid plating tin solutions-Part 1:Determination of tin(Ⅱ) sulfate content by potentiometric titrimetric method
GB/T 23834.5-2009
Chemical analysis method for stannous sulfate - Part 5: Determination of arsenic content - Silver diethyldithiocarbamate spectrophotometry
HB 5422.14-1989
HB 20056.3-2011
Methods for analysis of Sn-Bi alloy plating and plating Sn-Bi alloy solutions-Part 3:Determination of stannous sulfate content by oxidation-reduction method
HB 20056.4-2011
Methods for analysis of Sn-Bi alloy plating and plating Sn-Bi alloy solutions-Part 4:Determination of stannous sulfate content by potentiometric titrimetric method
GB/T 24153-2009
Rubber and elastomer materials - Determination of N-nitrosamines
GB/T 5195.18-2018
Fluorspar—Determination of barium sulfate content—Gravimetric method