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[{"$nulls":30},"13SD Security Grilles"]
[{"$nulls":10},"Input Data",{"$nulls":12},"Nominal Duct","Core Area","H & W",null,null," "," "]
[null,"Enter Duct Width in inches =",{"$nulls":8},10,"Inches",{"$nulls":11},"Area '( ft2 )","( ft2 )","border",null,null," Free area & Core Area Ratio",null,"Ak/Ac",0.4444,"Ak Consts.",null," - ","\""," "," "]
[null,"Enter Duct Height in inches =",{"$nulls":8},12,"Inches",{"$nulls":11},0.8333333333333334,0.37033333333333335,0.75,{"$nulls":4},"Eff. Ak",0.8888,"M",2]
[null,"Enter Minimum Air Flow (must be greater than 0)=",{"$nulls":8},200,"CFM",{"$nulls":20},"B",0]
[null,"Enter Maximum Air Flow =",{"$nulls":8},486,"CFM",{"$nulls":16},"Throw Zones",{"$nulls":6},"Ac*Eff Ak = "]
[{"$nulls":29},"c(ii)","c(iii)","c(iv)",null,null,null,0.3291522666666667]
[]
[{"$nulls":28}," ",1,3,11]
[null,"13SD Perforated Face Suicide Deterrent Security Supply Grille",{"$nulls":33},"Band","Slope 1","Slope 2","Const"]
[null,"IP Data",{"$nulls":5},"Metric Data",{"$nulls":27},2]
[null,"Nom","Duct","Neck","Air","Pt","Throw","Nom","Duct","Neck","Air","Pt","Throw",null,"Estimated",{"$nulls":20},3]
[null,"Duct","Area","Vel","Flow",null,null,"Duct","Area","Vel","Flow",null,null,"NC","Octave Band, dB",{"$nulls":13},"Pressure Constants",null,null,null," ",null,null,4]
[null,"in","ft²","FPM","CFM","\"WG","ft","mm","m²","m/s","L/s","Pa","m",null,2,3,4,5,6,7,{"$nulls":9},"m","b",null,1310," ",null,5]
[null,null,null,240,200,0.031179355559318306,"7 - 10 - 21",null,null,1.2192,94.38948,7.763659534270258,"2.1 - 3.2 - 6.4",12.13832290088873,"*","*",25.13832290088873,22.13832290088873," - ","*",{"$nulls":8},"0 Degrees",0,8.682597962766573,null,7.893270875242338,null,null,6]
[null,null,null,282.9,235.75,0.04332220429963787,"8 - 12 - 24",null,null,1.437132,111.26159955,10.78722887060983,"2.5 - 3.7 - 7.3",17.051422039113753,"*","*",30.051422039113753,27.051422039113753,12.051422039113751,"*",{"$nulls":12},"Factor",null,null,7]
[null,null,null,325.8,271.5,0.05745751129568403,"9 - 14 - 26",null,null,1.655064,128.1337191,14.306920312625323,"2.9 - 4.3 - 7.8",21.269496374855002,"*","*",34.269496374855,31.269496374855002,16.269496374855002,"*",{"$nulls":12},1.1]
[null,"10\"",null,368.7,307.25,0.07358527654745671,"11 - 16 - 27",254,null,1.872996,145.00583865000002,18.32273386031672,"3.3 - 4.9 - 8.3",24.965036719472117,"*","*",37.96503671947212,34.96503671947212,19.965036719472117,"*",{"$nulls":14}," "]
[null,"x",0.8333333333333334,411.59999999999997,343,0.09170550005495597,"12 - 18 - 29","x",0.07741920000000001,2.090928,161.8779582,22.834669513684034,"3.6 - 5.5 - 8.8",28.25335201690566,"*","*",41.25335201690566,38.25335201690566,23.25335201690566,"*",{"$nulls":8},"Sound",{"$nulls":6},"2","3","4","5","6","7","NC"]
[null,"12\"",null,454.5,378.75,0.11181818181818182,"13 - 20 - 30",304.79999999999995,null,2.30886,178.75007775,27.842727272727274,"4.0 - 6.0 - 9.2",31.21534770866122,"*","*",44.21534770866122,41.21534770866122,26.21534770866122,"*",{"$nulls":10},"B","CVn","CAn",null,"M(An)"]
[null,null,null,497.4,414.5,0.13392332183713418,"14 - 22 - 32",null,null,2.526792,195.6221973,33.34690713744641,"4.4 - 6.6 - 9.6",33.90998225399152,"*","*",46.90998225399152,43.90998225399152,28.909982253991522,"*",{"$nulls":8},"0 deg",null,-171,68.79,10,null,"M(Vn)"]
[null,null,null,540.3,450.25,0.15802092011181312,"16 - 23 - 33",null,null,2.7447239999999997,212.49431685000002,39.347209107841465,"4.8 - 7.1 - 10.0",36.381551000568656,"*","*",49.381551000568656,46.381551000568656,31.381551000568656,"*",{"$nulls":9},"Teams",-149.7434745141847,null,null,null,"B"]
[null,null,null,583.1999999999999,486,0.18411097664221862,"17 - 24 - 34",null,null,2.962656,229.3664364,45.84363318391244,"5.2 - 7.4 - 10.4",38.66417846171665,"*","*",51.66417846171665,48.66417846171665,33.66417846171665,"*",{"$nulls":8},"Use core area and velocity for sound on this unit."]
[{"$nulls":30},1310,"add"]
[{"$nulls":30},-174,3]
[null,"1)  Throw values are given for terminal velocities of 150, 100, and 50 fpm (0.75,0.5 and 0.25 m/s), Isothermal Conditions"]
[null,"2) Dash (-) in space denotes an NC or dB value of less than 10."]
[null,"3) Data were obtained from test conducted in accordance with ANSI / ASHRAE Standard 70-1991."]
[null,"4) Octave Band data was estimated using the guidelines stated in the Engineering Section of Krueger's Catalog."]
[null,"5) NC assumes a room absorption of 10dB."]
[{"$nulls":41}," "]