Petroleum products - Precision of measurement methods and results - Part 1: Determination of precision data in relation to methods of test (ISO/DIS 4259-1:2016); German and English version prEN 4259-1:2016
Liquefied petroleum gases - Determination of dissolved residue - Gas chromatographic method using liquid, on-column injection; German version EN 16423:2013— 27 стр.