1、Designation: F2649 08aF2649 14 An American National StandardStandard Specification forCorrugated High Density Polyethylene (HDPE) GreaseInterceptor Tanks1This standard is issued under the fixed designation F2649; the number immediately following the designation indicates the year oforiginal adoption
2、 or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope Scope*1.1 This specification covers material, design, structural performance, a
3、nd manufacturing practice requirements for monolithicor sectional corrugated polyethylene grease interceptor tanks with volumes equal to or greater than 333 gal (1,260 L).1.2 The corrugated high density polyethylene (HDPE) grease interceptor tanks are placed between commercial food service(kitchen)
4、drains and sanitary sewer interceptors to minimize the impact of commercial food service effluent containing grease, oils,soap scum and other typical commercial food service wastes on the sanitary sewer system. Typical sources of commercial kitcheneffluent are scullery sinks, pot and pan sinks, dish
5、washers, soup kettles and floor drains where grease containing materials mayexist.1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1
6、.4 This specification covers pipe and fittings for horizontally laid corrugated HDPE grease interceptor tanks as illustrated inFig. 1.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to est
7、ablish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D543 Practices for Evaluating the Resistance of Plastics to Chemical ReagentsD1600 Terminology for Abbreviated Terms Relating to PlasticsD32
8、12 Specification for Joints for Drain and Sewer Plastic Pipes Using Flexible Elastomeric SealsD3350 Specification for Polyethylene Plastics Pipe and Fittings MaterialsF412 Terminology Relating to Plastic Piping SystemsF477 Specification for Elastomeric Seals (Gaskets) for Joining Plastic PipeF667 Sp
9、ecification for 3 through 24 in. Corrugated Polyethylene Pipe and FittingsF714 Specification for Polyethylene (PE) Plastic Pipe (DR-PR) Based on Outside DiameterF2306/F2306M Specification for 12 to 60 in. 300 to 1500 mm Annular Corrugated Profile-Wall Polyethylene (PE) Pipe andFittings for Gravity-F
10、low Storm Sewer and Subsurface Drainage Applications2.2 IAPMO Document:3Uniform Plumbing CodeIAPMO/ANSI Z1001 Prefabricated Gravity Grease Interceptors2.3 American Society of Civil Engineers4ASCE No.60 Gravity Sanitary Sewer Design and Construction1 This specification is under the jurisdiction of AS
11、TM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.26 on Olefin BasedPipe.Current edition approved June 15, 2008Sept. 1, 2014. Published June 2008September 2014. Originally approved in 2008. Last previous edition approved in 2008 asF264908.08a. DOI: 10.15
12、20/F2649-08A.10.1520/F2649-14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from International
13、Association of Plumbing and Mechanical Officials, 5001 E. Philadelphia St., Ontario, CA 91761, http:/www.iapmo.org.4 Available from American Society of Civil Engineers (ASCE), 1801 Alexander Bell Dr., Reston, VA 20191, http:/www.asce.org.This document is not an ASTM standard and is intended only to
14、provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof
15、the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12.4 Plastic Pipe Institute5PPI TR-4 PE34082.5
16、 AASHTO Document6:AASHTO LRFD Bridge Design Specifications3. Terminology3.1 For definitions of terms relating to plastics, see Terminology F412 and abbreviations are in accordance with TerminologyD1600, unless otherwise specified.3.2 Definitions of Terms Specific to This Standard:3.2.1 access openin
17、g, na hole in the top or crown of the tank used to gain access to the inside of the tank for the purpose ofcleaning and removing grease, floating scum and sludge without a person actually having to enter the tank.3.2.2 air scum volume, nthe number of cubic in. (cm) in the space between the liquid su
18、rface and the underside of the topslab.3.2.2 baffle, na partition across the width of the tank that extends partially between the top and bottom intended to deflectinfluent downward and increase the length of the flow path of the liquid as it travels through the tank.3.2.3 grease interceptor tank sy
19、stem, na single tank or series of tanks in which wastes from a kitchen or food service industrycontaining no sanitary discharges is received and retained, and from which the liquid effluent, which is comparatively free fromsettleable and floating solids, is then discharged to a public sewer, septic
20、system, or approved treatment system.3.2.4 inspection opening, na hole in the top or crown of the tank used for the purpose of observing conditions inside the tank.3.2.5 joint, na physical separation where two pieces of the tank or pipe-tank interface are in contact.3.2.6 monolithic corrugated high
21、density polyethylene grease interceptor tank, na single extruded piece of pipe with nointernal joints other that end caps that serves as the principal tank structure.3.2.8 non-sealed joint, na joint where a machined fit will minimize the movement of liquid from one side of a wall to theopposite side
22、.3.2.7 owner, nis by definition end user, customer, or purchaser.3.2.10 sealed joint, na joint that is sealed to prevent liquid passing from one side of a wall to the opposite side.3.2.8 sectional corrugated high density polyethylene grease interceptor tank, na group or two or more extruded pieces o
23、f pipeconnected with joints that when combined serve as the principal tank structure.4. Ordering Information4.1 The owner shall include the following information in bidding documents and on the purchase order, as applicable to the unitsbeing ordered:4.1.1 Reference to this specification, and date of
24、 issue,4.1.2 Quantity or number of units ordered,4.1.3 Capacity of tank in gal or L, based on owners requirements,4.1.4 Application conditions such as effluent and temperature of discharge,4.1.5 Acceptance will be based on a review of the calculations or on proof tests,5 Available from Plastics Pipe
25、 Institute (PPI), 105 Decker Court, Suite 825, Irving, TX 75062, http:/www.plasticpipe.org.6 Available from American Association of State Highway and Transportation Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001,http:/www.transportation.org.FIG. 1 Standard Corrugated HDP
26、E Grease InterceptorF2649 1424.1.6 Design requirements based on owner specified site conditions, such as depth of earth cover, live load applied at thesurface, and ground water level, and4.1.7 Testing for water leakage shall not be required at the job site unless specifically required by the owner a
27、t the time ofordering.5. Materials and Manufacture5.1 Basic MaterialsMaterials utilized for the fabrication of a corrugated polyethylene grease interceptor tank shall beevaluated for temperature extremes and effluent constituents in accordance with Practice D543.5.1.1 Tank and RisersThe tank and ris
28、ers shall be fabricated from pipe and fittings meeting the requirements of SpecificationF2306/F2306M.5.1.2 Inlet and Outlet TeesInlet and outlet tees shall be fabricated from pipe and fittings meeting the requirements ofSpecification F2306/F2306M or F714.5.1.3 Vent pipes and internal tank piping Ven
29、t pipe and internal piping within the grease interceptor shall be fabricated frompipe and fittings meeting the requirements of Specification F2306/F2306M for dual wall pipe and Specification F667 for singlewall pipe.5.1.4 Baffles and End CapsBaffles and end caps shall be fabricated from either flat
30、plates meeting the requirements of PPITR-4 PE3408 material or blow molded fittings, rotationally molded fittings or injection molded fittings meeting the requirementsof Specification material.F2306/F2306M.5.1.5 Welding RodWelding rod shall be of medium or high density polyethylene, meeting the prope
31、rties of the tank as requiredunder Specification F2306/F2306M with the exception that the tensile strength at yield shall not be less than 5000 psi (3.5 MKg/m2).5.2 Pipe Connections Pipe-to-tank connections shall employ flexible connectors conforming to the requirements ofSpecification F477. Materia
32、ls for the connectors shall have demonstrated resistance to the effects of fats, oils, grease, and fluidtemperatures specified under Section 4.6. Structural Design Requirements6.1 Structural design of grease interceptor tanks shall be by calculation.6.1.1 Design by calculation shall be completed usi
33、ng the AASHTO LRFD Bridge Design Specifications, Section 12, “BuriedStructures and Tunnel Liners”.6.1.2 Tanks shall be designed so that they will not collapse or rupture when subjected to anticipated earth and hydrostaticpressures when the tanks are either full or empty. Design of end caps must cons
34、ider the lateral load of both external water and earthloading including consideration of strength and deflection of the end cap, and how the load is transferred to and carried by thebarrel of the tank.6.1.3 After installation conditions are established, loads fromAASHTO LRFD Bridge Design Specificat
35、ions, Section 3, “Loadsand Load Factors”, shall be used for design. Unless heavier live loads are expected, the minimum live load at the surface for designshall be an AASHTO H20 truck load.6.2 OpeningsThe structural design shall take into consideration the number, placement, and size of all openings
36、.7. Physical Design Requirements7.1 CapacitySizes are generally specified by local regulations and they shall supersede the following guidelines. When localregulations are not available, minimum grease interceptor capacity shall meet the performance requirements of IAPMO/ANSIZ1001 or ASCE No. 60 and
37、 be determined by use of one of the two sizing options below:7.1.1 Option 1: The tank shall be sized in accordance with flow figures and factors listed in the Uniform Plumbing Code.7.1.2 Option 2: The tank shall be sized by using the actual average daily-metered water use figures from the facility m
38、ultipliedby a safety factor of 1.5.7.2 Compartments:7.2.1 Grease interceptor tank systems that utilize multiple compartments shall have the dividing walls welded to the tank body.7.2.1.1 Welding of the dividing wall shall be done by continuous extrusion welding on both sides of the wall.7.2.1.2 Weld
39、ing rod shall be of medium or high density polyethylene meeting the properties for the tank as required underSpecification F2306/F2306M with the exception that the tensile strength at yield shall not be less than 5000 psi (3.5 M Kg/m2).7.2.2 Multiple units installed in series are acceptable.7.2.3 Ea
40、ch compartment shall have a riser access for clean-out and maintenance.7.3 Influent and Effluent Pipes:7.3.1 The influent pipe shall be no less than 4 in. (100 mm) in diameter.7.3.2 The difference between the invert of the influent pipe and the invert of the effluent pipe shall be a minimum of 2 in.
41、 (50mm).F2649 1437.3.3 Inlet and outlet pipes shall be connected to the tank with a sealed flexible connector conforming to F477 to accommodatetank movement.7.4 Outlet Devices:7.4.1 If tees or outlet filters are added, they shall be made of noncorrosive materials and be permanently connected withnon
42、corrosive fasteners to either the inside of the tank or the outlet pipe.7.4.2 Outlet filter device, if specified, shall be installed in accordance with manufacturers recommendations or requirementsof regulating agencies, or both.7.4.3 Specifications for tees and outlet filters shall be in accordance
43、 with normal, low-flow conditions. High-flow conditions,created when liquid is pumped from another tank, will require consideration for other dimensions. Design by a registeredprofessional engineer is required for these cases.7.5 Openings in Tank Top:7.5.1 An access opening shall be located over the
44、 influent tee and the effluent tee. Where an opening has any dimension greaterthan 12 in. (300 mm) the cover shall weigh a minimum of 59 lb (27 kg.) or be provided with a lock system to prevent unauthorizedentrance.7.5.2 An access opening or openings inspection opening shall be provided to permit pu
45、mping of all compartments.7.5.3 All openings, risers, and covers shall be sealed with resilient watertight seals meeting F477.7.6 End Plates:7.6.1 End plates shall be welded to the ends of the pipe sections to form the completed tank.7.6.1.1 Welding of the end plates shall be done by continuous extr
46、usion welding on both sides of the wall.7.6.1.2 Welding rod shall be of medium or high density polyethylene meeting the properties for the tank as required underSpecification F2306/F2306M with the exception that the tensile strength at yield shall not be less than 5000 psi (3.5 M Kg/m2).7.6.2 End pl
47、atescaps shall be made of virgin PE plastic compound fabricated from flat plates meeting the requirements of cellclassification 445434C as defined in Specification PPI TR-4 PE3408 material. D3350, except that carbon black content shall notexceed 4 %. Compounds that have a higher cell classification
48、in one or more properties shall be permitted provided all otherproduct requirements are met.8. Quality Control and Sampling8.1 The manufacturer shall certify that the product meets three criteria: (1) water tightness, (2) physical dimensions, and (3)strength of grease interceptor tank.8.2 Installati
49、on shall be in accordance with manufacturers instructions.9. Performance Test Methods9.1 Testing for leakage of the tank shall be performed using either vacuum testing or water-pressure testing. This testing is onlyto confirm the integrity of the welds and homogenous quality of the wall. Pressure testing of the joints and any similar connectionsshall be in accordance with 9.2.9.1.1 Vacuum TestingSeal the empty tank and apply a vacuum to 100 mm (4 in.) of mercury. The tank is approved if thevacuum is held for 2 min.9.1.2 Water-Pressure TestingSeal
