7、项且急性毒性为类别的毒性气体有毒气体：危险性属于项的其他毒性气体易燃液体极易燃液体：沸点且闪点的液体；或保存温度一直在其沸点以上的易燃液体易燃液体高度易燃液体：闪点的液体（不包括极易燃液体）；液态退敏爆炸品易燃液体：闪点的液体易燃固体危险性属于项且包装为类的物质易于自燃的物质危险性属于项且包装为或类的物质遇水放出易燃气体的物质危险性属于项且包装为或的物质氧化性物质危险性属于项且包装为类的物质危险性属于项且包装为或类的物质有机过氧化物危险性属于项的物质毒性物质危险性属于项且急性毒性为类别的物质危险性属于项且急性毒性为类别的物质注：以上危险化学品危险性类别及包装类别依据确定 ， 急性毒性类别依据确定 。
。

8、重大危险源的辨识指标单元内存在危险化学品的数量等于或超过表、表规定的临界量 ， 即被定为重大危险源 。
单元内存在的危险化学品的数量根据处理危险化学品种类的多少区分为以下两种情况：单元内存在的危险化学品为单一品种 ， 则该危险化学品的数量即为单元内危险化学品的总量 ， 若等于或超过相应的临界量 ， 则定为重大危险源 。
单元内存在的危险化学品为多品种时 ， 则按式（）计算 ， 若满足式（） ， 则定为重大危险源：q1/Q1+q2/Q2+qn/Qn1（）式中：q1 ， q2 ， qn每种危险化学品实际存在量 ， 单位为吨（）；Q1 ， Q ， Qn与各危险化学品相对应的临界量 ， 单位为吨（） 。
AcknowledgementsMy deepest gra 。

【危险化学品重大危险源辨识|《危险化学品重大危险源辨识》(GB18218)】9、titude goes first and foremost to Professor aaa , my supervisor, for her constant encouragement and guidance. She has walked me through all the stages of the writing of this thesis. Without her consistent and illuminating instruction, this thesis could not havereached its present form.Second, I woul 。

10、d like to express my heartfelt gratitude to Professor aaa, who led me into the world of translation. I am also greatly indebted to the professors and teachers at the Department of English: Professor dddd, Professor ssss, who have instructed and helped me a lot in the past two years.Last my thanks wo 。

11、uld go to my beloved family for their loving considerations and great confidence in me all through these years. I also owe my sincere gratitude to my friends and my fellow classmates who gave me their help and time in listening to me and helping me work out my problems during the difficult course of 。

12、 the thesis.My deepest gratitude goes first and foremost to Professor aaa , my supervisor, for her constant encouragement and guidance. She has walked me through all the stages of the writing of this thesis. Without her consistent and illuminating instruction, this thesis could not havereached its p 。

13、resent form.Second, I would like to express my heartfelt gratitude to Professor aaa, who led me into the world of translation. I am also greatly indebted to the professors and teachers at the Department of English: Professor dddd, Professor ssss, who have instructed and helped me a lot in the past t 。

14、wo years.Last my thanks would go to my beloved family for their loving considerations and great confidence in me all through these years. I also owe my sincere gratitude to my friends and my fellow classmates who gave me their help and time in listening to me and helping me work out my problems during the difficult course of the thesis.7 。

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标题：危险化学品重大危险源辨识|《危险化学品重大危险源辨识》(GB18218)( 二 )