Ethanol as a blending component for petrol - Determination of dry residue (involatile material) - Gravimetric method; German version EN 15691:2009— 9 стр.
Petroleum products - Determination and application of precision data in relation to methods of test (ISO 4259:2006); German version EN ISO 4259:2006, Corrigenda to DIN EN ISO 4259:2006-10— 2 стр.