2.廠外大眾個人成員的風險基準，其上限是5 × 10^- 5／年，其下限是5 × 10^- 6年／年。
3.社會風險基準係由下式所具有的關係決定 f ( n ≧ N／A ) ＝ f (A) × P ( n ≧ N／A ) ≦ f ( n ≧ X／A ) 基準。 The criteria proposed are to apply to high risk industries, mainly inclusive of chemical and petro-chemical, and oil refinery processes, The methodology developed here, however, could also be applicable to nuclear power stations. These criteria could be used in the risk assessment for those industries whish intrinsically exist major hazards that possibly lead to massive release of toxic gasses and/or serious fire and explosion. The public-focused accidents often result in casualties of on-site employees and off-site members of the public. To reduce major hazards, it is essential for industry to develop quantitative risk criteria with which the responsible decision-making on risks can be made.
Risk criteria for employees and the public rooted from our experience (historical fatal accidents) and world wide date are introduced. Criteria for overall hazards which include major hazards and threaten only employees is also considered.
Unlike requirements for quantified risk assessments by law in other nations, setting a target or criterion is not mandated in Taiwan. The criteria proposed here hopefully would motivate process industries to reach higher level of safety standands.