Effect of Test Condition on Decrepitation Index and Test Repeatability for Lump Iron Ore

摘要

This ISO standard provides indefinite test condition. There is no specific requirement for the type of furnaces or the geometry of test portion holders. Japanese laboratories mainly use two types of test equipment: a combination of a muffle furnace and a box type test portion holder shown in Fig. 1 and a combination of a reduction furnace and a cylindrical type test portion holder shown in Fig. 2. They conduct the testing according to their original detailed test condition.