二乙基羟胺含量测定检测标准

铁矿石 铬含量的测定 二苯基碳酰二肼分光光度法

铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法

贵金属合金化学分析方法 钯、银合金中钯量的测定 二甲基乙二醛肟重量法

Fluorspar—Determination of arsenic content—Silver diethyldithiocarbamate spectrometric method

Chemical analysis methods and determination of physical performance of alumina--Determination of vanadic oxide content--N-benzoyl-N-phenylhydroxylamine extraction photometric method

Rubber--Determination of copper content--Zinc diethyldithiocarbamate photometric method

Determination of N,N-bis(2-hydroxyethyl)-p-phenylenediamine,N,N-dimethyl-p-phenylenediamine,N,N-diethyl-p-phenylenediamine,N-phenyl-p-phenylenediamine and their salts in oxidative hair dyes for export-High performance liquid chromatography

Method for the determination of di(2-ethylhexyl) adipate and di-n-octyl adipate in polyvinyl chloride film

Water quality--Determination of free chlorine and total chlorine--Titrimetric method using N，N-diethyl-1，4-phenylenediamine

Water quality--Determination of free chlorine and total chlorine--Spectrophotometric method using N，N-diethyl-1，4-phenylenediamine

Determination of ethylenediamine tetraacetic acid disodium (EDTA) and copper content in chemical copper plating effluent

Chromium metal - Determination of iron content - EDTA titrimetric method and flame atomic absorption spectrometric method

Chromium metal - Determination of aluminium content - EDTA titrimetric method and flame atomic absorption spectrometric method

Aromatics—Determination of carbonyl value and carbonyl compounds content—Free hydroxylamine method