BS EN 1217-1998 与食物接触的材料和器具.陶瓷器具的吸水性试验方法

标准号：BS EN 1217-1998
中文标准名称：与食物接触的材料和器具.陶瓷器具的吸水性试验方法
英文标准名称：Materials and articles in contact with foodstuffs - Test methods for water absorption of ceramic articles
标准类型：Y78
发布日期：1998/4/15 12:00:00
实施日期：1998/4/15 12:00:00
中国标准分类号：Y78
国际标准分类号：67.250;81.060.20
适用范围：This European Standard 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, which requires test specimens with not more than one glazed surface; - test method B, based on the same principle and general procedure as method A 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 to assist water penetration, followed by immersion in water and boiling; the test specimens may be glazed on both surfaces and are taken from different parts of a ceramic article to include possible inhomogeneities of the article. NOTE Values of very low water absorption should preferably be determined by test method C.