Odorization (Repealed)

All combustible gases transported or distributed by pipe line shall have a distinctive odor of sufficient intensity so that a concentration of one-half of one per cent of the gas in the air is readily perceptible to the normal or average olfactory senses of a person coming from fresh uncontaminated air into a closed room containing one part of the gas in one hundred ninety-nine parts of air. Whenever necessary to maintain this level of intensity, a suitable odorant shall be added in accordance with the following specifications: (1) The odorant shall be harmless to humans, nontoxic and noncorrosive to steel, iron, brass, copper and leather. It shall not be soluble in water to an extent greater than two and one-half parts by weight of the odorant to one hundred parts by weight of water; (2) The products of combustion from the odorant shall be nontoxic to a person breathing air containing these products of combustion and shall not be corrosive or harmful to materials which normally would be exposed to such products of combustion; (3) Equipment for introduction of the odorant into the gas shall be so designed and so built as to avoid wide variation in the level of odor in the gas. The equipment and facilities for handling the odorant shall be located where the escape of odorant would not be a nuisance. Every company shall keep the commission informed of the type of odorant used, the ratio of odorant to gas and the location of the odorization stations.