SEARCH Articles Figures Tables Average Exposure Limit Average content limits Average limiting current density Average limiting viscosity number Average quality limit Current, average limiting Exposure limits time weighted average Gases threshold limit averages Threshold Limit Value-Time Weighted Average Threshold Limit Values time weighted average exposures Threshold limit averages Threshold limit value-time weighted average concentration exposure Threshold limit value-time-weighted average TLV-TWA) Time-Weighted Average-Permissible Exposure Limit Time-Weighted Average-Permissible Exposure Limit TWA-PEL)