Advanced technical ceramics - Methods of test for ceramic powders - Part 4: Determination of oxygen content in aluminium nitride by XRF analysis; German version EN 725-4:2006— 11 стр.
Advanced technical ceramics - Methods of test for ceramic powders - Part 5: Determination of the particle size distribution; German version EN 725-5:2007— 16 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.
