DIN EN 15721 E:2012 乙醇作為汽油混合成分 高級(jí)醇、甲醇和揮發(fā)性雜質(zhì)的測(cè)定 氣相色譜法 草案
Draft Document - Ethanol as a blending component for petrol - Determination of higher alcohols, methanol and volatile impurities - Gas chromatographic method; German version prEN 15721:2012