German Institute for Standardization, din+en+228+din+en+iso
DIN EN 228 Berichtigung 1:2006 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
DIN EN ISO 228-1 Supplement 1:2003 Pipe threads where pressure-tight joints are not made on the threads-part 1:dimensions,tolerances and designation-limits of size; English version of DIN EN ISO 228-1 Supplement 1:2003-05
DIN EN 228:2014 Automotive fuels - Unleaded petrol - Requirements and test methods; German version EN 228:2012
DIN EN 228:2013 Automotive fuels.Unleaded petrol.Requirements and test methods; German version EN 228:2012