B.O.D. "B.O.D." stands for biochemical oxygen demand, which is the quantity of oxygen utilized, according to laboratory test, in the biochemical oxidation of the organic matter in effluent during a specified period, which for the purposes of these regulations is three days, and at a specified temperature, which for the purposes of these regulations is 30 degrees Centigrade; PU(A)342/1977 - ENVIRONMENTAL QUALITY (PRESCRIBED PREMISES) (CRUDE PALM-OIL) REGULATIONS, 1977 2. Interpretation.