DB53/T 918-2019
GB/T 7043.2-2001
Rubber--Determination of copper content--Zinc diethyldithiocarbamate photometric method
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
DB22/T 1693-2012
DB37/T 1203-2009
GB/T 43012-2023
Pulp—Determination of cellulose nanocrystal sulfur and sulfate half-ester content
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
HB/Z 5109.7-2001
GB/T 2463-2008
Pyrites and concentrate - Determination of total iron content - Cerium sulfate volumetric and potassium dichromate volumetric methods
HG/T 2957.4-2004
GB/T 2468-2008
Pyrites and concentrate - Determination of zinc content - Flame atomic absorption spectrometric and spectrphotometric methods
GB/T 15057.8-1994
Limestonefor chemical industry--Determination of sulfur content--Gravimetric and combustion-iodate titrimetric methods
NB/SH/T 0822-2010
Standard test method for determination of phosphorus,sulfur,calcium,and zinc in lubrication oils by energy dispersive X-ray fluorescence spectroscopy
DB45/T 2107-2019
GB/T 666-2011
Chemical reagent - Zinc sulfate heptahydrate
NB/SH/T 0880-2014
Standard test method for determination of calcium,chlorine,copper,magnesium,phosphorus,sulfur,and zinc in unused lubricating oils and additives by wavelength dispersive X-ray fluorescence spectrometry (mathematical correction procedure)
GB/T 2463.1-1996
Pyrites and concentrate—Determination of total iron content—Part 1:Cerium sulfate volumetric method
GB/T 35871-2018
Inspection of grain and oils—Determination of calcium, potassium,magnesium, sodium, iron, phosphorus, zinc, copper, manganese, boron, barium, molybdenum, cobalt, chromium, lithium, strontium, nickel, sulfur, vanadium, selenium, rubidium contents in cereals and derived products—Inductively coupled plasma optical emission spectrometric method
GB/T 2468.2-1996
Pyrites and concentrate—Determination of zinc content—Part 2:Oscilloscopic polarography method