论文部分内容阅读
文章介绍用比色法测定含有磷酸雾气车间的磷酸含量。测定装置按美国职业安全与卫生研究所推荐的方法设计，可简便、准确地直接测定。
The article introduces the determination of phosphoric acid content in phosphoric acid mist workshop by colorimetry. The measuring device is designed according to the method recommended by the Institute of Occupational Safety and Health of the United States and can be directly and simply measured.