. . "maximum allowable concentration"@en . . "M03762" . . . . . . "maximum allowable concentration"@en . "N06.850.460.350.600.615" . . . "N06.850.460.350.210" . "C0024971" . . "maximum exposure to a biologically active physical or chemical agent that is allowed during an 8-hour period in a population of workers, or during a 24-hour period in the general population"@en . . "D008452" . . . "maximum allowable concentration"@en .