THZ,toxicity hazard zone

It discusses the determination of toxic hazard distance with leakage accident of liquefied chlorine cylinder as example;the fire and explosion hazard distance with the leakage of natural gas pipeline as example.

介绍了不同国家、机构确定的毒性物质、易燃易爆物质紧急暴露限值和化学品事故中危害距离的确定方法,并以液氯钢瓶泄漏事故说明毒性危害距离的确定,以天然气管线泄漏火灾、爆炸事故说明火灾爆炸事故危害距离的确定。