BS EN 725-1-2007 高级工业陶瓷.陶瓷粉末的试验方法.氧化铝中杂质的测定

标准号：BS EN 725-1-2007
中文标准名称：**工业陶瓷.陶瓷粉末的试验方法.氧化铝中杂质的测定
英文标准名称：Advanced technical ceramics - Methods of test for ceramic powders - Determination of impurities in alumina
标准类型：Q32
发布日期：2007/10/31 12:00:00
实施日期：2007/10/31 12:00:00
中国标准分类号：Q32
国际标准分类号：81.060.30
引用标准：EN ISO 3696;EN ISO/IEC 17025
适用范围：This Part of EN 725 specifies one fusion and one acid dissolution method for the determination of elements ofsodium, potassium, iron, silicon, calcium and magnesium present as impurities in alumina using atomicabsorption spectroscopy (AAS) or inductively coupled plasma (ICP) spectroscopy. For each element presentas impurities, the methods are applicable to the following ranges, calculated as oxides : Sodium oxide: 20 ppm to 6000 ppm Potassium oxide: 20 ppm to 100 ppm Ferric oxide: 20 ppm to 300 ppm Silica: 50 ppm to 2000 ppm Calcium oxide: 20 ppm to 700 ppm Magnesium oxide: 5 ppm to 1000 ppm