ORD 1734 - Laserfiche WebLink

Ordinance No. 1734 Page Seven (9) "Lethal Concentration" CLC50") means the median lethal concentration level, at which 50 percent of appropriate test animals die when exposed by inhalation for a scientifically appropriate specified time period. (10) "Lethal Concentration Low" CLCLo") means the lowest concentration of a chemical at which some test animals died following inhalation exposure. (11) "Lethal Dose Median" CLDM 50 ") means the dose at which 50 percent of test animals die following exposure. The lethal dose is given in milligrams per kilogram of body weight of the test animals. (12) "Lethal Dose Low" CLDLo") means the lowest dose of a chemical at which some test animals died following exposure. (13) "Material Hazard Index" CMHI") means a numeric value used for ranking of chemical substances (materials) in order to determine the level of controls necessary for regulated materials. MHI is determined by dividing the EVC of a material at 25 degrees C by the LOC for the material, as shown in the following equation: MHI = EVC (ppm) AT 25 degrees C LOC (ppm) (14) "Minimum Threshold Quantity" CMin. T.Q.") means the aggregate quantity in a control area which, due to the minimal aggregate quantifies present, need only comply with specific control requirements established in subsection 89.401(e) of this article, and not with the requirements for Class I, II, or III regulated materials. Min. T.Q. for mixtures shall be based on the aggregate weight (in pounds) of the regulated components. Min. T.Q. = 2 lbs. or less. Minimum threshold quantity controls are set forth in subsection 89.401(e) of this article. (15) "Persons" means an individual, trust, finn, joint stock company, corporation, partnership, association or other business entity, city, county, district, the state, any department or agency thereof, or the United States, to the extent authorized by law.