2008DIN EN ISO 17226-1:2008 Leather - Chemical determination of formaldehyde content - Part 1: Method using high performance liquid chromatography (ISO 17226-1:2008); German version EN ISO 17226-1:2008
2004DIN ISO/TS 17226:2004 Leather - Chemical tests - Determination of formaldehyde content (ISO/TS 17226:2003); German version CEN ISO/TS 17226:2003