Definitions for "TLV-TWA"
The allowable Time-Weighted Average concentration for a normal 8-hour workday or 40-hour workweek.
Threshold limit value-time-weighted average. Usually timed over an 8 hour work day or 40 hour work week.
Threshold Limit Value - Time-Weighted Average: The time-weighted average concentration for a normal 8 hour work day and a 40 hour work week, to which nearly all workers may be repeatedly exposed, day after day, without adverse effect.