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共找到 150 條與 氣相色譜用對照品 無水乙醇 相關的標準,共 10

1含量(C2H5OH),w/% ≥ 99.9 2密度(20℃),ρ/(g/mL) 0.789~0.791 3與水混合試驗 合格 4蒸發殘渣,ω/% ≤ 0.0005 5酸度(以 H+計),b/(mmol/g) 

Chemical reagent — Reference material for gas chromatography — Ethanol

1含量(CH3OH), 2密度(20℃), 3與水混合試驗 合格 4蒸發殘渣, 5水分(H2O), 6酸度(以 H+計), 7堿度(以 OH-計), 8易炭化物質 合格 9羰基化合物(以 CO 計), 10還原高錳酸鉀物質

Chemical reagent — Reference material for gas chromatography — Methanol

1含量(C3H8O),w /% ≥ 99.90 2密度(20℃),ρ/(g/mL) 0.784~0.786 3蒸發殘渣,w /% ≤ 0.001 4與水混合試驗 合格 5酸度(以 H+計),b

Chemical reagent — Reference material for gas chromatography — Isopropanol

本標準規定了化學試劑  高效液相色譜用試劑  乙醇(無水乙醇)的性狀、規格、試驗、檢驗規則和包裝及標志。 本標準適用于化學試劑  高效液相色譜用試劑  乙醇(無水乙醇)的檢驗

Chemical reagent— Ethanol for high performance liquid chromatography

含量(C4H8O),w/% 色度/黑曾單位 密度(20℃),ρ/(g/ml) 折光率() 與水混合試驗 蒸發殘渣,w/% 水分(H2O),w/% 酸度(以H+計),b/(mmol/g) 還原高錳酸鉀物質(以O計),w/% 易炭化物質 丙酮(CH3COCH3),w/% 甲醇

Chemical reagent — Reference material for gas chromatography — 2-Butanone

Schválení ST SEV 2969-81 doporu?ilo ministerstvo pr?myslu ?SSR, Praha. Zpracovatel: Chemopetrol, k. p., Chemické závody ?SSP Litvínov -Luděk Laurich

Determination of ethanol by gas chroma- tography

1含量(C6H12),w/% ≥ 99.90 2密度范圍(20℃),ρ/(g/mL) 0.778~0.779 3結晶點,t/℃ ≥ 6.0 4蒸發殘渣,w/% ≤ 0.002 5苯(C6H6),w/% 

Chemical reagent — Reference material for gas chromatography — Cyclohexane

This International Standard specifies a gas liquid chromatographic reference method for the determination of the sterol composition of anhydrous milk

Anhydrous milk fat -- Determination of sterol composition by gas liquid chromatography (Reference method)

Gas chromatography analysis of special dehydrated ethanol SD-3A method

Methanol poison, technical. Gas chromatographic method of ethyl alcohol determination

1含量(CH2Cl2),w/% ≥ 99.90 2色度/黑曾單位 ≤ 10 3密度(20℃),ρ/(g/mL) 1.320~1.330 4蒸發殘渣,w/% ≤ 0.002 5酸度(以 H+計),b/(mmol/g

Chemical reagent — Reference material for gas chromatography — Dichloromethane

COSMETIC RAW MATERIALS. ETHANOL. DETERMINATION OF METHANOL CONTENT. GAS CROMATOGRAPHIC METHOD.

本文件描述了化妝品中二乙二醇單乙醚的氣相色譜-質譜測定方法的原理、試劑和材料、儀器設備、試驗步驟、試驗數據處理、回收率、精密度等內容。 本文件適用于水劑類、乳液類、膏霜類和噴霧類化妝品中二乙二醇單乙醚的測定。 本文件的方法檢出限為0.25 mg/kg,定量限為0

Determination of diethylene glycol monoethyl ether in cosmetics—Gas chromatography mass spectrometry

W/D NO S/S

Cosmetic raw materials. Ethyl alcohol. Determination of methanol content. Gas chromatography method.

Ethanol fuel. Determination of ethanol content by method of gas chromatography




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