Natural gas - Natural gas for use as a compressed fuel for vehicles - Part 1: Designation of the quality (ISO 15403-1:2006); German version EN ISO 15403-1:2008— 32 стр.
Natural gas - Designation of the quality of natural gas for use as a compressed fuel for vehicles (ISO 15403:2000); German version EN ISO 15403:2005— 28 стр.
Reciprocating internal combustion engines - Exhaust emission measurement - Part 6: Report of measuring results and test (ISO 8178-6:2000); German version EN ISO 8178-6:2000— 19 стр.
Automotive fuels - Unleaded petrol - Requirements and test methods; German version EN 228:2004, Corrigenda to DIN EN 228:2004-03; German version EN 228:2004/AC:2005— 3 стр.