1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULMarch 30, 20121UL 2447OUTLINE OF INVESTIGATIONFORCONTAINMENT SUMPS, FITTINGS AND ACCESSORIES FOR FUELSISSUE NO: 1MARCH 30, 2012Summary of Topics:This First Issue of Subject 2447, Outline of Inves
2、tigation for ContainmentSumps, Fittings and Accessories for Fuels, covers requirements for:Containment Sumps Tank, Dispenser, Transition and Fill/Vent types.Sump Fittings Penetration, Termination, Internal and Test/Monitortypes.Sump Accessories Covers, Lids, Frames, Brackets and Chase Pipe.The initi
3、al draft is based on a combination of existing requirements,internal guidelines and parallel Standards. The proposed requirements areintended to reflect general updates in design and technology, regulatorycompliance, industry needs, and also to address scope of use, biofuels,compatibility and functi
4、onal safety issues with respect to generallyexpected assembly, use and environmental conditions over the productsaverage service life.These requirements are not intended to specifically address each andevery stakeholders needs or concerns, and every conceivable operatingcondition or weather extreme.
5、 As with all standards, the requirementsreflect a minimum level of safety, are not warrantees or guarantees, andrely upon external stakeholders to ensure proper installation, use, andperiodic inspection with maintenance or replacement as appropriate forcontinued safety.This issue becomes effective J
6、une 30, 2015.COPYRIGHT 2012 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULMARCH 30, 2012UL 24472No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSI
7、ON FROM ULCONTENTSINTRODUCTION1 Scope .52 General 72.1 Units of measurement .72.2 Undated references .73 Glossary .7CONSTRUCTION4 General 9PERFORMANCE5 General .126 Material Properties Tests .156.1 General 156.2 Elastomers .166.3 Thermoplastics 166.4 Thermosets .166.5 Coated or plated metals 166.6 C
8、omposites .177 Abuse Tests .177.1 General 177.2 Drop test .187.3 Impact test .198 Fitting Assembly, Installation and Use Tests 198.1 General 198.2 Torque tests 208.3 Bending tests .218.4 Push pull test .229 Accessory Assembly, Installation and Use Tests .229.1 General 229.2 Frame and bracket strengt
9、h tests 239.3 Cover and lid strength tests .249.4 Chase pipe strength tests 2410 Leakage Tests .2510.1 General .2510.2 Sump leakage .2510.3 Fitting leakage .2610.4 Cover and lid leakage .2610.5 Chase leakage .2611 Interstitial Communication Test .2712 Short Term Compatibility Tests .2712.1 General .
10、2712.2 UV exposure test .2812.3 Metallic stress crack test 2812.4 Nonmetallic stress crack test 2913 Long Term Compatibility Test 29MARCH 30, 2012 UL 2447 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULMANUFACTURING AND PRODUCTION TESTS14 Ma
11、nufacturing and Production Tests 3314.1 General .3314.2 Dimensional measurements .3314.3 Leakage test .33MARKINGS AND INSTRUCTIONS15 Markings .3316 Instructions 35Appendix A - Test Fuel FormulationsA1 Representative Aggressive Combustible Test Fuel Mixtures and UL-B100 .37A2 Representative Aggressiv
12、e Flammable Test Fuels and Mixtures 38MARCH 30, 2012UL 24474UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover containment sumps, and associated sump fittings and accessories(products) intended for
13、below or at grade use as an enclosure for housing of, and access to, undergroundpiping, connector piping, and other fueling system components (such as pumps, valves, sensors, wiring,etc.) in addition to temporary containment of typical liquid fuels as identified in this Outline. These productsare in
14、tended for use in commercial (public) or private (fleet) automotive fueling station applications. Somefittings or accessory products may be optionally evaluated for repair or replacement applications in sumpsthat have been in service.1.2 Containment sumps may be either primary or secondary construct
15、ions of metallic, nonmetallic orcomposite materials. Typical containment sump types intended for use in the following automotive fuelingstation applications are:a) Tank Sumps Sumps intended for installation above underground flammable liquid storagetanks;b) Dispenser Sumps Sumps intended for install
16、ation below flammable liquid dispensingequipment;c) Transition Sumps Sumps intended for access to liquid or vapor piping run manifolds,fittings and valves in a fueling system; andd) Fill/Vent Sumps Sumps intended for housing of fill and/or vent pipe ends, drain valves,gauges or monitors connected to
17、 the tank.1.2.1 Containment sump fittings may be included as either an integral part of the containment sump, oras a field installed kit, and may include but are not limited to the following sump applications:a) Penetration Fittings Fittings intended for sealing pipe penetrations through the sump wa
18、ll;b) Termination Fittings Fittings intended for connecting pipe terminations at the sump wall;c) Internal Fittings Fittings intended for connection of working components inside the sump;andd) Test and Monitor Fittings Fittings intended for periodic testing or continuous monitoring ofthe sump and/or
19、 pipe.1.2.2 Containment sump accessories may be included as either an integral part of the containment sump,or as a field installed kit, and may include but are not limited to the following sump applications:a) Sump Covers and Sump Lids Covers or Lids intended to limit access to the sump withstructu
20、ral and leak resistance features;b) Sump Frames Frames intended to provide structural support of the sump walls and/orcomponents above or in the sump;c) Sump Brackets Brackets intended to provide structural attachment points for componentsinside the sump; andMARCH 30, 2012 UL 2447 5UL COPYRIGHTED MA
21、TERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULd) Chase Pipe Soil pipe intended to provide a structural conduit for routing undergroundcarrier pipe to and from the sump.1.3 Containment sumps, fittings and accessories are intended for containment of automotive
22、 fuels andexposure to soil fluids that have similar chemical, physical and material compatibility properties asrepresented by the test liquids in these requirements based on fuels formulated in accordance with 40CFR Part 80, Regulation of Fuels and Fuel Additives, and meeting the following ASTM Fuel
23、 Specificationsand blend limitations:a) ASTM D975, Standard Specification for Diesel Fuel Oils, with biodiesel blends up to amaximum of 5 percent (B5);b) ASTM D7467, Standard Specification for Diesel Fuel Oil and Biodiesel Blends (B6 to B20),with low biodiesel blends from 6 to 20 percent (B6 to B20)
24、;c) ASTM D4814Standard Specification for Automotive Spark-Ignition Engine Fuel, gasoline oroxygenated gasoline, with limited ethanol blends up to a maximum of 10 percent (E10);d) ASTM D5798, Standard Specification for Ethanol Fuel Blends for Flexible-Fuel AutomotiveSpark-Ignition Engines, with high
25、gasoline/ethanol blends from 51 to 83 percent (E51 E83);ande) Mid Range Ethanol Blends (E11 to E50) using variable mixtures of ASTM D4814, Low BlendEthanol and ASTM D5798, High Blend Ethanol.1.4 Products covered by this Outline are intended to be installed and used in accordance with one ormore of t
26、he following:a) NFPA 30, Flammable and Combustible Liquids Code;b) NFPA 30A, Code for Motor Fuel Dispensing Facilities and Garages;c) NFPA 1, Uniform Fire Code;d) International Fire Code published by the International Fire Council; ore) Other Applicable Federal and State regulations for the specific
27、 product or application it isbeing utilized in.1.5 These products are factory manufactured and intended for on-site field assembly, inspection and leaktesting for the specified applications and use conditions by qualified persons in accordance with themanufacturers instructions and local requirement
28、s.1.6 These products are intended to be periodically inspected and maintained for continued service, ortaken out of service if necessary by qualified persons in accordance with industry recommended practicesand/or the manufacturers instructions.MARCH 30, 2012UL 24476UL COPYRIGHTED MATERIAL NOT AUTHO
29、RIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL1.7 These products have not been evaluated for use after natural disasters, fires or exposures tochemicals not representative of the test liquids or excessive physical damage beyond the expectedassembly, installation and uses as
30、 identified in these requirements.1.8 These products have not been evaluated for special use applications where exposed to heavy orcontinuous physical abuses, excessive mechanical stresses; or environments that operate outside of theexpected atmospheric conditions and ambient use temperature range.1
31、.9 These requirements do not cover underground piping products, which are found in either theStandard for Nonmetallic Underground Piping for Flammable Liquids, UL 971 or the Outline for MetallicUnderground Piping for Flammable Liquids, SU 971A.1.10 These requirements do not cover connector piping pr
32、oducts, which are found in the Outline forFlexible Connector Piping for Fuels, SU 2039, or tank accessories, which are found in the Outline for FuelTank Accessories, SU 2583.2 General2.1 Units of measurement2.1.1 Values stated without parentheses are the requirement. Values in parentheses are explan
33、atory orapproximate information.2.2 Undated references2.2.1 Any undated reference to a code or standard appearing in the requirements of this standard shallbe interpreted as referring to the latest edition of that code or standard.3 Glossary3.1 For the purpose of this outline, the following definiti
34、ons apply.3.2 Containment Sumps Primary and/or secondary atmospheric enclosure of various types (see3.2.1 to 3.2.4) for burial below or at grade. Sumps are intended to provide a connection interface forunderground piping, wiring, and accessible housing for fueling system components, and the temporar
35、ycontainment of these liquids in the event of spills or leaks.3.2.1 Tank Sump A containment sump design with or without a bottom, and with a lid. Intended forattachment to a manway ring, collar, or connecting pipe above an underground tank.3.2.2 Dispenser Sumps A containment sump design with a botto
36、m and partially open top or lid.Intended for attachment to a frame under a liquid dispensing device at a fueling island.3.2.3 Transition Sumps A containment sump design with bottom, lid, and some above grade parts.Intended to house liquid or vapor piping manifolds, fittings, valves and other fueling
37、 components.3.2.4 Fill Sumps or Vent Sumps (aka Spill Buckets or Vapor Recovery) A containment sump designwith bottom opening and lid. Intended to interface with tank fuel fill or vapor recovery connecting pipeand house adapters/caps, drain valves, gauges or monitors.MARCH 30, 2012 UL 2447 7UL COPYR
38、IGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3.3 Sump Fittings Primary and/or secondary connections of various types (see 3.3.1 to 3.3.4) anddesigns (threaded, clamped, fused), intended for liquid tight joining or sealing of internal or externalpip
39、ing or other fueling system components to or through sump wall(s). Fittings are typically for newconstructions, but may be additionally designed for repair/replacement of in service sumps.3.3.1 Penetration Fittings Fittings intended to provide a liquid tight seal and securement of primary orsecondar
40、y piping passing into or through one or more containment sump wall(s).3.3.2 Termination Fittings Fittings intended to provide a liquid tight seal and securement of primary,secondary or chase piping ending at the inner or outer containment sump wall.3.3.3 Internal Fittings Fittings intended to provid
41、e a liquid tight seal and securment of various fuelingsystem components inside the containment sump, such as interstitial access ports, leak detection tubes,plugs.3.3.4 Test or Monitor Fittings Fittings intended to provide a means to conduct periodic testing orcontinuous monitoring of primary and/or
42、 secondary piping from inside the sump.3.4 Sump Accessories Various types (see 3.4.1 to 3.4.4) and designs (bolted, clamped, fused) ofmechanical hardware or parts intended to provide structural support of sump walls, fueling systemcomponents within sumps, fueling system equipment outside sumps, or l
43、oads above the sump.Accessories are typically for new constructions, but may be additionally designed for repair/replacementof in service sumps.3.4.1 Sump Covers b) ASTM D5798, Standard Specification for Ethanol Fuel Blends for Flexible-Fuel AutomotiveSpark-Ignition Engines, with high gasoline/ethan
44、ol blends from 51 to 83 percent (E51 E83);c) Mid Range Ethanol Blends (E11 to E50) using variable mixtures of ASTM D4814, Low BlendEthanol and ASTM D5798, High Blend Ethanol.d) ASTM D975, Standard Specification for Diesel Fuel Oils, aka on- road diesel, or low blendbiodiesel (max B5); ande) ASTM D74
45、67, Standard Specification for Diesel Fuel Oil and Biodiesel Blends (B6 to B20),with low biodiesel blends from 6 to 20 percent (B6 to B20);3.9 Qualified Person A worker specifically trained by the manufacturer to perform proper fieldinstallations of its sumps and accessories in accordance with the s
46、pecified instructions. The qualifiedperson is not required to be an employee of the manufacturer.3.10 Swivel Joint A connection or joint designed to allow frequent rotational movement of the pipeduring normal functional use.3.11 Union Joint A connection or joint designed to allow rotational movement
47、 of the pipe only duringassembly, installation or maintenance.CONSTRUCTION4 General4.1 Containment Sumps shall be primary or secondary design types for below grade use with thecapability for at grade access, and are permitted to be constructed of any material combinations. Sumpsare permitted to be c
48、onstructed in any shape, and of multiple pieces for field assembly with manufacturersupplied installation kits (hardware, seals, etc.). In addition:a) Only fittings or accessories described in the sump manufacturers instructions are permittedto be factory or field installed on or through the sump. T
49、he recommended sump, fitting andaccessory combinations may be specific model(s) and/or generic material(s)/type(s); andb) Any parts of the sump wall that are also part of an underground pipe, and functions as aliquid or vapor containing part of the pirping system shall additionally comply with UL 971 or SU971A as applicable.MARCH 30, 2012 UL 2447 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL4.1.1 Tank sumps shall not exceed a total height/depth of 12.0 ft.
