ORD 1734 - Laserfiche WebLink

Ordinance No. 1734 Page Six (3) "Equilibrium Vapor Concentration" CEVC") means the state of a regulated material at which vapor pressure has stabilized and is no longer rising or falling. EVC Value of a regulated material determined by multiplying vapor pressure CVP'') by 10 , and dividing by atmospheric pressure; as shown in the following equation: mm Hg; atmospheric pressure is assumed to be 760 mm at sea level. EVC (ppm) = Vapor Pressure x 106 Atmospheric Pressure 760 mm Hg Note: Vapor pressure for materials with a boiling point equal to or less than 25 degrees C shall be 760 mm Hg; materials with a boiling point greater than 25 degrees C shall use the actual vapor pressure for that material at 25 degrees C. Atmospheric pressure is assumed to be 760 mm at sea level. (4) "Facility" means any building, structure, installation, equipment, pipe, container, site, area, appurtenant structure, or surrounding land area where regulated materials are stored, used, dispensed, handled, placed or otherwise have come to be located. (5) "Fire Code" means the Uniform Fire Code CUFC"), as adopted or modified by the Pleasanton Municipal Code. (6) "Gas" means an aeriform fluid which is in a gaseous state at normal temperature and pressure. (7) "Inert Construction Materials" means materials which under reasonably foreseeable conditions will not degrade or react upon contact with the regulated materials to be contained. (8) "Level of Concem" CLOC") means the maximum concentration of a substance in air that will not cause serious health effects in the majority of the population when exposed to the substance for a relatively short period of time. For purposes of this article, the LOC is equal to O. 1 of the IDLH value, as defined in Article 80 of the Fire Code, if the particular substance has an established IDLH, or if not, an estimated LOC value based on acute toxicity values of 0.01 LC50, 0. 1 LCLo, 0.001 LD50, or 0.01 LDLo.