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� <br /> Appendix H UNIFORM PLUMBING CODE � <br /> ;� <br /> H 105.2.5 The inlet ond outlet shall have a baffle sulfate rxpansion requirement (table 4). Ccncrete <br /> lee or similar flow device wilh a minimum cross ahnll have a maximum water/cemenling maleria:s <br /> sectional area equal to the required cross sectional ratio of Fi gal,(229 L)/sack of cement. Complying <br /> area of tlie inlet Lach ba(fle shail extend from at least with the following ASTM designations:AST�1 C 260- <br /> four (4) inches (ID2 mm) ubove lhe liquld level to 86, Specification �or Air Gn(;aining Admixtures for <br /> wilhin at least twelve (12) inches (305 mm) of the Concrete; ASTM C 33-86, Specification for Concrete <br /> inside(loor of the interrnptor. Aggregates; ASTM C 99-86, Specifirnlion for Ready <br /> H 105.2.6 Adequate parlitions or baffles of sound Mix Concrete; and ASTM C 618-85, Specifiwtion (or <br /> Jurable material shall be constructed between Ply Ash �nd Raw or Calcined Natural Pozzolan for <br /> compartments of the grcase interceptor and shnll use as a Mineral Admixture in Portland Cement <br /> exlend at least six (6) inches (152 mm) nbcve the Concrete. <br /> liquid ievel. Plow kom inlet compartment to outlet H 105.4.2 Walls slmll have a thickness of at !cast <br /> compartme�t shall be lhrough a quarter bend, or three (3) inches (76 mm), except where engineering <br /> similar device equivalent in cross sectiona! area to analysis and produclion melhods can jusHfy a lesser <br /> lhe inle[ into the interceptor,and shall exten l down thickness. <br /> to tvithin twelve Q2) inches (3U5 mm) of the inside H 105.4.3 7'he minimum area of steel reinforcement f <br /> flooc Wooden bafFles are prohibited. (in both directio:�s)of the structural elements shall be <br /> H 105.2.7 hilet,outlet and main baFtle sliall have u 0.00;5 times the gross cross-seclional area of the <br /> frce vent ama equal lo the rcquired cross sectional reinforced section,if o(bars;and nat less lhan three- <br /> area of the inlet piF�• � fourths (3/4) as much if of welded wire Fabric. All <br /> H 105.2.8 Tiie inside cover of tiie grease reinforcement shall be protected with n minimum of <br /> interceptor shall be minimum of nine (9) inches (229 one (1) inch (25.4 mm) of concrele nnd shall comply ; <br /> mm) above the liquid level over the enlire aurface �+'�����1STM A 185-55, Specification for Steel Welded <br /> area of the interceptoc The nirspace sh�ll have a W�re Pabric, Plain for Concrete Reinforcement and <br /> minimum capacity eqiml to 12-]/2"/0 oE the grease ASTM A 615, Specification for Deformed and Plain <br /> interceptors liquid volume. Dillet Steel Bars for Concrete Reinforcement Tanks <br /> H 105.3.0 Structural Requlrements shall be of stdficient slrenglh to resist sVesses caused i <br /> during handling and instnllation wilhout structural <br /> H 105.3.1 Grease interceptors shall be designed lo �racking. <br /> wilhstand all anticipated loids. <br /> H 105.3.2 Greasc inlercepters and covers ehall be H 105.4.4 [f repairs are necessary, they shall be <br /> Jesigned for an earth load of not Iess (han five �arried out in nccordance wiih the established <br /> hundrecl (5�0)pounds per square foot(24 kPa)when P�°ctices of the manufacturer in a manner lhat <br /> insures that the repaired Interceptor meets the <br /> Ihe maximum coverage does not exceed three(3)feet requirements of this appendix. <br /> (914 mm). Gach intercepter and cover shall be <br /> structurally designed to withstand all anticipated H 105.5.1 Steel. Steel grease interceptors shall <br /> earth or other IoaJs and to be inslalled level and on n comply tvith the requirements for sleel septic tanks <br /> solid bed. Wood covers are prohibited. Grense �nSection4ofPS1. <br /> interceplors for installation in traffic nreas shall be H 105.6.1 Flberglass Reln}orced Polyester. <br /> designed to withstand an AASIiTO II20-94 wheel Fiberglass reinforced polyester grease interceptors <br /> lond,an addilional three(3)foot(914 mm)earth load shall comply with the requirements for fiberglass <br /> with an assumed soil weight of one hundmd (100) reinforced pulyester septic Wnks in Section 4 of PS 1. <br /> pound per square foot (4.8 kPa), and thirty (30) H 105.6.2 Polyethylene. Pol}�ethylene grease <br /> pounds per squ�re foot (1.4 kPa) flutd equivulent 3nterceptors shall comply with the requirements for <br /> sidewall pressure. polyethylene septic tanks in Section 4 of PS l. <br /> H105.3.3 ]ndependent Inborntory tesls and H105.7.0 WalerTlghtTesting <br /> engineering calculations certifying the grease H 105.7.1 Water Testing - A sampling (rom each <br /> intercepter capacity and structunl stability shall be monufacturer's production run shall be water tested. <br /> provided. One sample shall be tested for each size intercepter <br /> H 105.4.0 Meterlsl Requlfements. manufactured. Sample inlercepters ahall be <br /> H 105.4.1 Conerete. Concrele sh�ll have a assembled per manufacturer's instruclions, set level, <br /> minimum compressive strength of fuur thousand and waler raised to fhe(low-line of lhe outlet fitting. <br /> (4U00) pounds per square inch (27579 kPa),nnd shall Intercepters shall show no leakage from section <br /> be madc wilh type 11/V low-alkali porlland cement seams,pinholes,or other imperfectiors.Any leakage <br /> con(orming to ASTM C 150, including the optional is cause for rejection. When leakage occurs <br /> 214 <br /> —.. .____. ---- <br /> ---�--- ___ -- <br /> ,�r ..�. - ,- .k _,. .�.. ._�. _ ___��:_,.r�,, <br />