man-lock definition
man-lock means any lock, other than a medical lock, used for the compression or decompression of persons entering or leaving a working chamber;
man-lock means any air lock or decompression chamber used for the compression or decompression of persons, but does not include an air lock which is only so used in emergency or a medical lock used solely for treatment purposes;
man-lock means any lock, other than a medical lock used for the compression or