Ordinance No. 19593 - Laserfiche WebLink

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walls, floor and roof that is designed to withstand the rapid re- lease of energy in an explosion. Barricades may be fully confined, partially vented or f ul 1 y vented . Ceil~'ng limit is the maximum concentration of an airborne con- taminant to which one may be exposed. The ceiling limits utilized are to be those published in 29 CFR 1910 Subpart Z. Container is any vessel of 60 U.S. gallons or less capacity used for transporting or storing hazardous materials. Continuous gas detecti,_on system is a gas detection system where the analytical ~~~nstrument is maintained in continuous opera- tion and sampling is performed without interruption. Analysis may be performed on a cyclical basis at a frequency not to exceed 30 minutes. The detection system shall be coupled to an alert or alarm system which is activated when a pre-set concentration limit is exceeded. Control area is space within a building where the exempt amounts specified in Division III may be stored or the exempted amounts specified in Division Iv may be dispensed, used or handled. Cinder is a vessel designed to withstand pressures higher than 40 pounds per square inch absolute and having a circular cross-section. It does not include a portable tank, multiunit tank car tank, cargo tank or tank car. Excess flow control is a fail safe system designed to shut off flow due to a rupture in pressurized piping systems. Excess flow valve is a valve inserted into a compressed gas cylinder, portable yr stationary tank that is designed to posi- tively shut off the flow of gas in the event that its pre-determined flow is exceeded, Health hazard is a classification of a chemical for which there is statistically significant evidence based on at least one study conducted in accordance with established scientific principles that acute or chronic health effects may occur in exposed persons. The term "health hazard" includes chemicals which are carcinogens, toxic or highly toxic agents, reproductive toxins, irritants, cor- rosives, sensitizers, hepatotaxins, nephrotoxins, neurotaxins, agents which act an the hematopoetic system, and agents which damage the lungs, skin, eyes, or mucuaus membranes. See Appendix VI-A} H~ hl volatile li uid is a liquid with a bailing point of less than 68 degrees F. IDLH Immediatel Dan Brous to Life and Health is a concen- tration of airborne contaminant, normally expressed in parts per million ~ppm} ar milligrams per cubic meter, which represents the maximum level from which one could escape within 30 minutes without any escape-impairing symptoms or irreversible health effects. This level is established by the National Institute of Occupational Safety and Health ~NIOSH}. If adequate data does not exist for precise establishment of IDLH data, an independent certified Indus- trial Hygienist, Industrial Toxicologist, or appropriate regulatory agency shall make such determination. Permissible ex osure limit PEL is the maximum permitted 8-hour time weighted average concentration of an airborne contami- nant. The maximum permitted time weighted average exposures to be utilized are those published in 29 CFR 1910 Subpart Z. Ordinance - 20