Testing of liquid petroleum hydrocarbons - Analysis by gas chromatography - Part 9: Determination of total aromatics and benzene by column switching procedure— 10 стр.
Petroleum products - Determination and application of precision data in relation to methods of test (ISO 4259:1992 + Cor 1:1993); German version EN ISO 4259:1995— 40 стр.
Production in optical engineering - Testing of lubricating greases for precision engineering and optical instruments - Part 1: Evaporation loss— 6 стр.