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
\u0413\u041e\u0421\u0422 4465-2016
Reagents. Nickel (II) sulphate, 7-aqueous. Specifications
\u0413\u041e\u0421\u0422 4465-74
Reagents. Nickel (II) sulphate, 7-aqueous. Specifications
GB/T 32784-2016
Pig iron contenting nickel—Determination of chromium content—Ammonium per sulfate-ammonium ferrous sulfate titration method
GB/T 21932-2008
Nickel and ferronickel - Determination of sulphur content - Barium sulfate gravimctric method after alumina chromatographic separation
GB/T 4702.1-2016
Chromium metal—Determination of chromium content—The ammonium ferrous sulfate titrimetric method
HB/Z 5088.1-1999
GB/T 43753.3-2024
Methods for chemical analysis of precious metals alloys electroplating wastewater—Part 3:Determination of sulfate content—Barium sulphate gravimetric method
HB/Z 5089.3-2004
Methods for analysis of plating black nickel solutions-Part 3:Continual determination of nickel sulfate and zinc sulfate content by EDTA compleximetric method
HB/Z 5089.2-2004
Methods for analysis of plating black nickel solutions-Part 2:Continual determination of nickel sulfate and zinc sulfate content by magnesium sulfate back titrimetric EDTA volumetric method
HG/T 3535-2011
GB/T 11064.9-2023
Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride—Part 9: Determination of sulfate content—Barium sulfate turbidity method
HB/Z 5089.1-2004
Methods for analysis of plating black nickel solutions-Part 1:Determination of ammonium nickel sulfate content by ion selective electrode method
GB/T 12690.21-2024
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 21:Determination of sulfate radical content in rare earth oxides—Barium sulfate turbidimetry
HB/Z 5088.2-1999
YS/T 1569.4-2022
HB 7064.4-1994
GB/T 11064.16-2023
Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride—Part 16: Determination of calcium, magnesium, copper, lead, zinc, nickel, manenases, cadmium, aluminum, iron and sulfate contents—Inductively coupled plasma atomic emission spectrometry
HB/Z 5089.4-2004
Methods for analysis of plating black nickel solutions-Part 4:Determination of sodium sulfate content by precipitation titrimetric method
HB/Z 5087.5-2004
Methods for analysis of acid plating copper solutions part 5:Determination of nickel sulfate content by atomic absorption spectrometric method