 |
| English | Chinese |
| permissible exposure limit An exposure limit that is set for exposure to an hazardous substance or harmful agent and enforced by OSHA (Occupational Safety and Health Act) as a legal standard. It is based on time-weighted average concentrations for a normal 8-hour work day and 40 hour work week | 允许暴露极限 (这是由职业健康安全局(管理职业安全和健康行为)对曝光限制和有害物质所制定的法定标准。它是基于工作时间强度，如40小时/周，8个小时/天的工作时间。) |
| regulation on maximum permissible limits A body of rules or orders prescribed by a government or an international organization or treaty establishing levels of hazardous materials in the environment or in ingestible substances beyond which human exposure is deemed health-threatening | 规管最大允许限度 (由政府或国际组织或条约建立的一种规则或规定，规范在环境中或在可摄取的物质中有害物质的标准，如果超过这一标准人们会受到健康威胁。) |