DIN EN 1217:1998-01

The document specifies test methods for the determination of the water absorption of ceramic articles. Three test methods are described: Test method A, based on the increase in mass of test specimens after immersion in boiling water under defined conditions. Test method B, based on the same principle but with a longer period of immersion in boiling water. Test method C, based on the increase in mass of test specimens after a combination of evacuation of the test specimens followed by immersion in water and boiling.