Document wdOEm0agdgeaDgbEpnynEa2E

FLAMMABLE AND COMBUSTIBLE LIQUIDS and it is preferable that fueling be done out of doors Only equipment from reliable manufac turers made according to the NFPA Flam mable & Combiuhble Liquids Code should be used, and the operator should under stand and explicitly follow the instructions of the manufacturer The equipment should never be used dose to combustible materi als Others means of performing the oper ation are preferable Liquefied petroleum gases Liquefied petroleum gases include any material which is composed predominantly of any of these hydrocarbons, or mixtures of them propane, propylene, butane (nor mal butane or isoSutane), and butylenes The gases liquefy under moderate pressure, but convert into a gaseous state upon relief of the pressure LP-gas in the gaseous state presents a hazard comparable to that of any flammable natural or manufactured gas, except that since it is heavier than air, the matter of adequate ventilation requires added attention Liquefied petroleum gases are used as fuel gases, as raw materials in chemical processes, for example, in the making of hydrogen, and to form special atmospheres in heat-treating furnaces It is important that employees understand the properties of these gases and that they be thoroughly trained in safe practices for handling, dis tribution, and operation Systems should be designed and installed by experienced, reliable concerns which are thoroughly familiar with the hazards, with state and local codes, and with fire organ ization and insurance company recommen dations See National Fire Protection Associa tion, Associated Factory Mutual Fire In surance Companies, LP-Gas Association, and Factory Insurance Association refer ences on this subject m "References " References American Conference of Governmental Industrial Hygienists, 1014 Broadway, Cincinnati Threshold Limit Values (published annually) American Petroleum Institute, 1271 Avenue of the Americas, New York City Cleaning Petroleum Storage Tanks Accident Prevention Manuals Noa 1A and IB Sale Practices in Balk Plant Operations Accident Prevention Manual No 8 Sale Transportation of Petroleum Products by Tank Truck Accident Prev Manual No 11 Specifications for Welded Oil Storage Tanks Standard No 12C American Society for Testing and Materials, 1916 Race St., Philadelphia, Pa Standard Method of Test lor Vapor Pressure of Petroleum Products Standard D323-58 Standards, Part 5 "Fuels, Petroleum, Aromatic Hydrocarbons, Engine Antifreezes " American Standards Association, 10 EaBt 40th St, New York City Safety Color Code lor Marking Physical Hatarda and the Identification of Certain Equipment Z53 1 Standards lor Petroleum Products 211 Senes American Welding Society, 33 West 39th St, New York City Safe Practices lor Welding and Cutting Containers That Have Held Combustibles Associated Factory Mutual Fire Insurance, Factory Mutual Engineering Division, 1151 BostonProvidence Turnpike, Norwood, Mass Approved Equipment lor Industrial Pire Protection Manual Flammable Liquids Drum Storage Loss Prevention Bulletin 13 22 Flammable Liquid Safeguards Loss Prevention Bulletin 13 20 Liquefied Petroleum Oaa Loss Prevention Bulletin 11 45 Mete! Cleaning Loss Prevention Bulletin 11 60 Piping Systems lor Flammable Liquids Loss Prevention Bulletin 13 21 Properties of Flammable Liquids, Gas and Solids Loss Prevention Bulletin 36 10 Storage Tanks lor Flammable Liquids Loss Prevention Bulletin 13 23 Association of American Railroads, Bureau of Explosives, 63 Vesey St., New York City Handling Collisions and Derailment Involving Explosives, Gasoline and Other Dangerous Articles Pamphlet No 22 Recommended Practice lor the Prevention of Electric Sparks That May Cause Fires in Tanks or Tank Cars Containing Flammable Liquids or Flammable Compressed Oases, Due to Proximity of Wire Lines Bureau of Explosives Circular No 17-E Signal Section Manual of Recommended Practice 32-33