Browse Standards

化学试剂 砷测定通用方法

Chemical reagent - General method for the determination of arsenic

化学试剂 蒸发残渣测定通用方法

Chemical reagent - General method for the determination of dry residue after evaporation

化学试剂 易炭化物质测定通则

Chemical reagent - General rules for the determination of readily carbonizable substances

化学试剂 酸度和碱度测定通用方法

Chemical reagent - General method for the determination of acidity and alkalinity

化学试剂 重金属测定通用方法

Chemical reagent - General method for the determination of heavy metals

化学试剂 羰基化合物测定通用方法

Chemical reagent - General method for the determination of carbonyl compounds

化学试剂 三水合六氰铁(Ⅱ)酸钾(亚铁氰化钾)

Chemical reagent - Potassium hexacyanoferrate(Ⅱ)trihydrate

化学试剂 二水合草酸(草酸)

Chemical reagent - Oxalic acid dihydrate

化学试剂 正丁醇

Chemical reagent - n-Butanol

化学试剂 高锰酸钾

Chemical reagent - Potassium permanganate

化学试剂 L(+)-酒石酸

Chemical reagent - L(+)-Tartaric acid

化学试剂 无水碳酸钠

Chemical reagent - Sodium carbonate anhydrous

化学试剂 无砷锌粒

Chemical reagent - Zinc granular free from arsenic

化学试剂 十二水合硫酸铁(Ⅲ)铵

Chemical reagent - Ammonium iron（III）sulfate dodecahydrate

化学试剂 氢氧化钾

Chemical reagent - Potassium hydroxide

化学试剂 十水合四硼酸钠(四硼酸钠)

Chemical reagent - Disodium tetraborate decahydrate

化学试剂 苯

Chemical reagent - Benzene

化学试剂 丙酮

Chemical reagent - Acetone

气体分析 校准混合气组成的测定和校验 比较法

Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures

气体中一氧化碳、二氧化碳和碳氢化合物的测定 气相色谱法

Determination of carbon monoxide,carbon dioxide and hydrocarbon in gases - Gas chromatographic method