| 释义 |
DictionarySeepelpermissible exposure limit
permissible exposure limit[pər¦mis·ə·bəl ik′spō·zhər ‚lim·ət] (industrial engineering) The level of air contaminants that represents an acceptable exposure level as specified in standards set by a national government agency; generally expressed as 8-hour time-weighted average concentrations. Abbreviated PEL. permissible exposure limit
per·mis·si·ble ex·po·sure lim·itan occupational health standard to safeguard workers against dangerous contaminants in the workplace.See PEL
See PPE |