The analysis condition of HiN content in SiC brick (contain of St3N4)are studied by leco TN -314 chromatic thermal conductive Nitrogen content meter with the relative stardand deviation of 0. 65%,and the quick and exact analysis method set up.

• 应用TN－314色谱热导氮仪，对SiC砖（含Si3N4）中的高氮含量的分析条件进行了研究，其测量相对标准偏差为0.；65%25，建立了一个快速和准确的分析方法。