Building hardware - Corrosion resistance - Requirements and test methods; German version EN 1670:2007, Corrigendum to DIN EN 1670:2007-06; German version EN 1670:2007/AC:2008— 2 стр.
General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025:2005); German and English version EN ISO/IEC 17025:2005, Corrigenda to DIN EN ISO/IEC 17025:2005-08; German and English version EN ISO/IEC 17025:2005/AC:2006— 4 стр.