Physical tests

Moisture content, loss on ignition – Particle size distribution – open porosity – Water absorption – Bulk density / Grain volume weight – Bulk density DIN 51081:2002-12 - Testing of oxidic raw materials and materials - Determination of mass change during annealing. DIN EN ISO 26845:2008-06 - Chemical analysis of refractory products - General requirements for wet chemical analysis, atomic absorption spectrometry (AAS) methods, atomic emission spectrometry with excitation by an inductively coupled plasma (ICP-AES). DIN EN 993-18:2002-11 - Test methods for dense shaped refractory products - Part 18: Determination of apparent density of granular materials by the water displacement method under vacuum.