DIN EN 15721:2013-12 汽油調(diào)合組分乙醇.高級(jí)醇、甲醇和其他雜質(zhì)的測(cè)定.氣相色譜法德文版 EN 15721:2013
Ethanol as a blending component for petrol - Determination of higher alcohols, methanol and other impurities - Gas chromatographic method; German version EN 15721:2013