UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

SNV - SN EN 15721

Ethanol as a blending component for petrol - Determination of higher alcohols, methanol and other impurities - Gas chromatographic method

active, Most Current
Organization: SNV
Publication Date: 1 October 2013
Status: active
Page Count: 23
ICS Code (Liquid fuels): 75.160.20
scope:

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.

NOTE 1 The European ethanol blending component specification[1] sets a limit for the combined result of ethanol + higher alcohols, not the ethanol content itself.

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 2 For the purposes of this European Standard, the term "% (m/m)" is used to represent the mass fraction (ω).

Document History

SN EN 15721
October 1, 2013
Ethanol as a blending component for petrol - Determination of higher alcohols, methanol and other impurities - Gas chromatographic method
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...
August 1, 2009
Ethanol as a blending component for petrol - Determination of higher alcohols, methanol and volatile impurities - Gas chromatographic method
A description is not available for this item.

References

Advertisement