NS-EN 15721:2013由SCC 发布于 2013-11-01。
NS-EN 15721:2013 汽油调合组分乙醇 高级醇、甲醇及其他杂质的测定 气相色谱法的最新版本是哪一版?
最新版本是 NS-EN 15721:2013 。
Full Description ADOPTED_FROM:EN 15721:2013 This European Standard specifies a gas chromatographic method for ethanol, in which higher alcohols (propan-1-ol, butan-1-ol, butan-2-ol, 2-methylpropan-1-ol (isobutanol), 2 methylbutan 1 ol, and 3 methylbutan 1 ol) from 0,1 % up to 2,5 % (m/m), methanol from 0,1 % up to 3 % (m/m) and other impurities, in the range from 0,1 % up to 2 % (m/m) are determined. Impurities are all the compounds not attributed to the groups of higher alcohols or methanol. Due to possible interferences, the method is not applicable to denatured ethanol samples. Water, if present in the sample, is not included in this analysis, because a signal for water is not visible in the chromatogram. Therefore, if \"alcohol content\" is called up in a specification, water needs to be considered separately in the calculations. NOTE For the purposes of this European Standard, the term “% (m/m)” is used to represent the mass fraction (ω).
本文参考《SH/T 1550-2012工业用甲基叔丁基醚(MTBE)纯度及杂质的测定 气相色谱法》,采用双FID中心切割气相色谱法对MTBE中的主要杂质进行分析测定。...
(七)蒸馏酒及配制酒卫生标准的气相色谱分析:采用氢焰离子化检测器,GDX-102填充柱或FFAP大口径毛细管柱,外标法(峰面积)定量,分析白酒中的甲醇和杂醇油。分析结果完全符合国标GB/T.5009.48-2003。 (八)食品用酒精:采用PEG-20M毛细管柱,采用FID检测器,内标法完成对食用酒精中甲醇、杂醇油等微量组分的检测。分析结果完全符合国标GB10343-2002的要求。 ...
粗甲醇的全分析一般采用毛细管柱气相色谱法分析;中间控制分析一般采用填充柱对含量一般不能忽略的化合物杂质:甲酸、乙酸、乙醇、异丙醇、、二甲醚和甲酸甲酯进行直接分析可以忽略或者说不影响甲醇产品质量的化合物杂质则不必分析,以满足化工生产中间控制分析的标准。...
特别适用于车用和航空汽油以及含乙醇的汽油中有关醇、醚的分析。参见部级标准SH/T0663-1998。 (七) 蒸馏酒及配制酒卫生标准的气相色谱分析: 采用氢焰离子化检测器,GDX-102填充柱或FFAP大口径毛细管柱,外标法(峰面积)定量,分析白酒中的甲醇和杂醇油。分析结果完全符合国标GB/T.5009.48-2003。 ...
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