The article describes some effective factors and countermeasures of accurate degree in the half minim steam way measuring the nitrogen in the coal, according to the standard of GB/T19227-2003 and the practical operating experience of the author.

• 摘要按GB/T19227-2003标准并结合笔者的实际操作经验，浅析操作中影响半微量蒸汽法测定煤中氮准确度的若干影响因素及解决对策。