2003 APRIL - Laserfiche WebLink

20.24.240 ARTICLE 89 -TOXIC GASES DIVISION I GENERAL PROVISIONS (b) Limited Applications. For the pur- pose of this azticle, certain terms and words aze defined as follows: SEC 89.101 Scope (a) This article applies to all new and existing facilities where regulated materials subject to this article aze present in concentrations, which ex- ceed the Level of Concern as deter- mined in accordance with this article. (b) It is intended that this article supple- ment, and be used in conjunction with, other sections of this chapter and with the Uniform Building Code, 2000 Edition. (c) In the event of conflicting or overlap- ping regulatory provisions within the Pleasanton Fire Code and this article, the more stringent requirement shall prevail. (d) In the event of conflicting or overlap- ping regulatory provisions with a federal law or state law or regulation, unless the application of this article is expressly preempted by an Act of Congress or enactment of the state legislature, the more stringent re- quirement shall be deemed to apply. SEC 89.102 Definitions (a) General. Unless the context otherwise requires, the words and phrases in this article shall have the meanings set forth in this section and shall govern the construction of this azti- cle. For words and phrases not de- fined in this chapter, the definitions set forth in other articles of the Fire Code shall control. (1) "Controls" are a means to regulate materials so as to prevent unautho- rized discharges. (2) "Controls Area" means a space within a building where regulated materials may be stored, handled, dispensed or used. A control area is an area formed by one or more of the follow- ing: a. An occupancy separation with a minimum one-hour fire resistive rat- ing, or, b. The exterior wall, roof or founda- tion of the building. A maximum of four control azeas shall be permitted within a building except buildings or portions of build- ings used for retail sales, which shall have a maximum of two control ar- eas. (3) "Equilibrium Vapor Concentration" ("EVC") means the state of a regulat- ed 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 ("VP") 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 mmHg 710-51 (Pleasanton April 2003)