DIN 51069-2-1972 陶磁材料的检验.高温下抗固体和液体物质侵蚀的防火材料的比较试验.坩埚法
Testing of ceramic materials; comparing test of the resistance of refractory bricks to the attack of solid and liquid materials at high temperature, crucible method
Testing of ceramic materials; comparing test of the resistance of refractory bricks to the attack of solid and liquid materials at high temperature; crucible methodEssai des matières premières et des matériaux ceramiques; méthode de détermination de la r