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[{"$nulls":28},"EGC / EG 5 1/2in Egg Crate Return "]
[{"$nulls":8},"Input Data",{"$nulls":12},"Nominal Duct","Core Area","H & W",null,null," "," "]
[null,"Enter Duct Width in inches =",{"$nulls":6},20,"Inches",{"$nulls":11},"Area ( ft2 )","( ft2 )","border",null,null," Free area & Core Area Ratio",null,"Ak/Ac",1,null,null," - ",null," "]
[null,"Enter Duct Height in inches =",{"$nulls":6},20,"Inches",{"$nulls":11},2.7777777777777777,2.5733506944444446,0.75,{"$nulls":8},"\"",null,"Based on Titus lab data egc50x50 sound"]
[null,"Enter Minimum Air Flow (must be greater than 0)=",{"$nulls":6},1000,"CFM",{"$nulls":22}," ",null,"Modified 6/6/06 to agree with latest Titus data"]
[null,"Enter Maximum Air Flow =",{"$nulls":6},2300,"CFM"]
[{"$nulls":26},"Pressure Constants",null,null,null," "]
[{"$nulls":27},"m","b"," ",null," ",null,"Titus new catalog:  @ 1400 fpm   Ps= 0.29   Pv=.122 ",{"$nulls":4},"Pt= ",0.412]
[null,"EGC5 Return Grille / 1/2\"x1/2\"x1/2\" Core",{"$nulls":24},"0 Degrees",0,3.3770491803278686,{"$nulls":9},"Pt/Pv",3.3770491803278686]
[null,"IP Data",{"$nulls":5},"Metric Data",{"$nulls":24}," "]
[null,"Nom","Duct ","Neck","Air"," ",null,"Nom","Duct ","Neck","Air"," ",{"$nulls":19}," ","From EGC sound regression.Modified as shown"]
[null,"Duct","Area","Vel","Flow","Ps","Nc","Duct","Area","Vel","Flow","Ps","Octave Band, dB",{"$nulls":20},"2","3","4","5","6","7","NC"]
[null,"in","ft²","FPM","CFM","\"WG",null,"mm","m²","m/s","L/s","Pa",2,3,4,5,6,7,{"$nulls":8},"Sound",{"$nulls":5},"M(An)",9,9,9,9,9,9,9]
[null,null,null,388.5984145724405,1000,-0.022378716533102045," - ",null,null,1.9740799460279979,471.9474,-5.572300416742409,27.23369217173829,16.234039197082986,19.346205761134037,18.11298479471936,14.612199994547417," - ",{"$nulls":10},"B","CVn","CAn",null,"M(Vn)",48.32559400262715,63.49076575168263,56.83291432745321,61.769299007535025,76.75923951561742,111.41937020452976,76.42144057971625]
[null,null,null,451.7456569404621,1162.5,-0.03024273738981243," - ",null,null,2.2948679372575476,548.6388525,-7.530441610063296,30.393845882812492,20.38588840142416,23.062678343205143,22.15226219043027,19.631713993719877," - ",{"$nulls":8},"0 deg",null,-197.8352554430108,76.42144057971625,9,null,"New B",-101.59997378344744,-151.86985453757805,-131.51717489014055,-145.53316904249021,-187.85042014412969,-293.2226308937761,-197.8352554430108," "," "]
[null,null,null,514.8928993084837,1325,-0.03928863421342729,13.092547484431556,null,null,2.6156559284870973,625.3303050000001,-9.782869919143396,33.139847085825416,23.99361889563918,26.29209030046804,25.662173923222106,23.99339786750287,12.609649356044436,{"$nulls":10}," ",null,null," "]
[null,20,null,578.0401416765053,1487.5,-0.04951640700394658,16.93204442681901,508,null,2.936443919716647,702.0217575,-12.329585343982698,35.56777789954254,27.1834645609946,29.14743821241442,28.765531212404063,27.849866198700802,18.20748064498475,{"$nulls":14},"Old B",-97.59997378344744,-147.86985453757805,-127.51717489014054,-141.53316904249021,-183.85042014412969,-289.2226308937761,-193.8352554430108]
[null,"x",2.7777777777777777,641.1873840445269,1650,-0.060926055761370335,20.373070324892247,"x",0.258064,3.2572319109461967,778.71321,-15.170587884581213,37.74373296190954,30.042261353920118,31.706452130239605,31.5468155742062,31.306102159263823,23.22435726380315,{"$nulls":8}," "]
[null,20,null,704.3346264125485,1812.5,-0.07351758048569854,23.49061200004926,508,null,3.5780199021757464,855.4046625000001,-18.305877540938937,39.71513067617739,32.63230816168781,34.0248980741059,34.06663674533886,34.43742402820556,27.769606965947112,{"$nulls":14},"Correction",-4,-4,-4,-4,-4,-4,-4]
[null,null,null,767.48186878057,1975,-0.08729098117693117,26.340297572208534,null,null,3.898807893405296,932.096115,-21.73545431305586,41.517147845058965,34.999820704704895,36.1441454313154,36.369957369091715,37.299705813503785,31.924333300891313]
[null,null,null,830.6291111485916,2137.5,-0.10224625783506824,28.96453521142059,null,null,4.219595884634845,1008.7875675,-25.459318200931992,43.17660155015748,37.180031597931425,38.09573220844042,38.49105477544371,39.93554313829299,35.75036566576194,{"$nulls":14},"Corrected 6/6/06 to attempt to agree with newest Titus data",{"$nulls":6}," "]
[null,null,null,893.7763535166132,2300,-0.1183834104601098,31.396396331354715,null,null,4.5403838758643955,1085.47902,-29.477469204567342,44.7144047145734,39.20041649953905,39.90425287537696,40.45665965703868,42.37815359888783,39.29592084442027]
[{"$nulls":26}," ","Band","Const","Slope 1","Slope 2",null,"Note: Titus catalog assume area constant of 6!!!   (Which cannot be!) "]
[null,"1) Performance data does not include damper",{"$nulls":25},2,-101.59997378344744,48.32559400262715,9,null,"So I used a 9 for an area constant",{"$nulls":6}," "]
[null,"2) Data were obtained from test conducted in accordance with ANSI / ASHRAE Standard 70-1991.",{"$nulls":25},3,-151.86985453757805,63.49076575168263,9]
[null,"3) All pressures are in inches of water (Pascals)",{"$nulls":25},4,-131.51717489014055,56.83291432745321,9,null,"Note this data assumes no OBD"]
[null,"4) N.C. values are based on Octave Band 2 - 7 sound power levels minus a room absorption of 10dB.",{"$nulls":25},5,-145.53316904249021,61.769299007535025,9]
[{"$nulls":27},6,-187.85042014412969,76.75923951561742,9]
[{"$nulls":27},7,-293.2226308937761,111.41937020452976,9]