UL142A STANDARD FOR SAFETY Special Purpose Aboveground Tank forSpecific Flammable or Combustible Liquids
1.1 These requirements cover special purpose steel aboveground tanks for specific fuels or liquidsand/or use applications as indicated for each special purpose tank type, which are intends to address thespecific designs, features， limitations, use factors and other unique characteristics of each type. Theserequirements are not covered by UL 142 for general purpose steel aboveground tanks for flammable andcombustible liquids, as each special purpose tank deviates from them by construction, performance andormarkings for the intended use.The basic types of different special purpose tanks covered by this Standardare:
a)Generator base tanks are designed for combined combustible fuel storage and structuralsupport for diesel or turbine engine power generators，and are intended to be installed inaccordance with the Standard for the Installation and Use of Stationary Combustion Engines andGas Turbines，NFPA 37, or Standard for Emergency and Standby Power Systems，NFPA 110.Generator base tanks are limited to Combustible Class ll or lll fuels,such as diesel, kerosene,turbine oils or heavy oils. Covered options may include fire resistance, damage resistance and/ortank support evaluations.
b) Work top tanks are designed for combined combustible liquid storage and structural workingsurface,and are intended to be installed in accordance with NFPA 30,Code for Flammable andCombustible Liquids,NFPA 30A,Code for Motor Fuel Dispensing Facilities and Repair Garages, orNFPA 31，Standard for Installation of Oil-Burning Equipment. Work top tanks are limited toCombustible Class l liquids, such as heavy fuel oils, new/used lube oils， hydraulic/transmissionoils,or similar working fluids.Covered options may include racks,shelves and/or tank supportevaluations.
c)Lube oil tanks are designed for storage of unused lubricating oils and similar combustible liquids,and are intended to be installed in accordance with NFPA 30，Code for Flammable andCombustible Liquids,NFPA 30A, Code for Motor Fuel Dispensing Facilities and Repair Garages, orNFPA 31，Installation of Oil-Burning Equipment. Lube oil tanks are limited to Combustible ClassB oils, such as motor crankcase oils, hydraulic/transmission oils, machine/cutting oils, or similarfluids.Covered options may include dispensing equipment and/or tank support evaluations.
d) Used oil tanks are designed for storage of used lubricating oils and similar combustible liquids,and are intended to be installed in accordance with NFPA 30，Code for Flammable andCombustible Liquids,NFPA 30A, Code for Motor Fuel Dispensing Facilities and Repair Garages, orNFPA 31，Installation of Oil-Burning Equipment. Used oil tanks are limited to Combustible ClasslB oils, such as motor crankcase oils, hydraulic/transmission oils, machine/cutting oils, or similarfluids.Covered options may include recycling equipment andlor tank support evaluations.
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