DIN 51457:2023-11 陶瓷原材料和陶瓷材料的测试 通过电感耦合等离子体 (ICP OES) 和电热发射光谱法直接测定粉末、颗粒和块状石墨中微量杂

DIN 51457:2023-11 陶瓷原材料和陶瓷材料的测试 通过电感耦合等离子体 (ICP OES) 和电热发射光谱法直接测定粉末、颗粒和块状石墨中微量杂质的质量分数Testing of ceramic raw materials and ceramic materials - Direct determination of mass fractions of trace impurities in powders, granules and lumps of graphite by optical emission spectroscopy by inductively coupled plasma (ICP OES) and by electrotherma...