共找到 150 條與 氣相色譜用對照品 甲醇 相關的標準,共 10 頁
1含量(CH3OH), 2密度(20℃), 3與水混合試驗 合格 4蒸發(fā)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(fā)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
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(fā)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(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(fā)殘渣,w/% ≤ 0.002 5酸度(以 H+計),b/(mmol/g
Chemical reagent — Reference material for gas chromatography — Dichloromethane
Schválení ST SEV 2104-80 doporu?ilo federální ministerstvo paliv a energetiky. Zpracovatel a oborové normaliza?ní st?edisko: ?stav pro v?zkum a vyu
Natural gas. Determination of methanol by gas 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(fā)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
Reagents. Methanol. Determination of methanol content. Gaschromatographic method
Methanol poison, technical. Gas chromatographic method of ethyl alcohol determination
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(fā)殘渣,w/% ≤ 0.002 5苯(C6H6),w/% 
Chemical reagent — Reference material for gas chromatography — Cyclohexane
COSMETIC RAW MATERIALS. ETHANOL. DETERMINATION OF METHANOL CONTENT. GAS CROMATOGRAPHIC METHOD.
W/D NO S/S
Cosmetic raw materials. Ethyl alcohol. Determination of methanol content. Gas chromatography method.
本標準規(guī)定了化妝品中游離甲醇的氣相色譜測定方法。 本標準適用于膏霜類、水劑類、香波類、發(fā)膠類化妝品中游離甲醇的測定。 本標準對于甲醇的檢出限為6.0 mg/kg,定量限為20.0 mg/kg
Determination of free methanol in cosmetics—Gas chromatography
Determination of Methanol Purge Gas Components by Gas Chromatography
本標準適用于地表水、地下水、飲用水、廢水中甲醇的測定
Determination of Methanol in Water by Headspace Gas Chromatography
Determination of Methanol in Imported and Exported Cosmetics Multidimensional Gas Chromatography-Mass Spectrometry
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