The explosive range of benzene is 1.4% to 8% by volume in air. If you sample an empty tank that had contained benzene and obtained a reading of 50% L.E.L. on a combustible gas indicator, then the __________.
The explosive range of benzene is 1.4% to 8% by volume in air. If you sample an empty tank that had contained benzene and obtained a reading of 50% L.E.L. on a combustible gas indicator, then the __________.