DIN EN 15691-2009 作为汽油混合组分之一的乙醇.干残渣(不挥发性物质)的测定.重量法.英文版本DIN EN 15691-2009-07
Ethanol as a blending component for petrol - Determination of dry residue (involatile material) - Gravimetric method; English version of DIN EN 15691:2009-07
This European Standard specifies a procedure for the determination of dry residue in ethanol by gravimetric
(desiccation) method in the range (10 to 25) mg/100 ml.
NOTE In an interlaboratory study the method described has been tested at levels down to 3,5 mg/100 ml, but the precision appeared to be insufficient at such low levels.