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Excerpts from SFPE AFFF Chapter by Scheffey tcffgll3aeheotuopxr.)ve2weenpt6TTelidacl.ehnlthhiiessTeicgTaeegntsaumhohthtltIeipreefinseeaovrrhpetsttoeneeseextmeplprrsrat.cnmo.eeifrclnoacsneaAeigteirtrstiftmduchosoiacpuinoxpasaIaoldaniphSantcsliclmrOdiioiaetOtcpintye/CavEran,atelglniNteicaoanvpofssnnwclesrperoilrlerdrzuiw,oIfqteaeIdhosauItneiarirdiosomstharihinenetnt3aee,ympdgnftmseolooecaeofcrnenffiidwonnteS7iesa1uime.ttfn16tsaaiffeeodt.snio41ncndcr/fittsemleahoaFaexnrtue2/sxdiftmtrosio(tifn.0nizilruinsegan.,Fe1gvutplvroi9u.e(ieorirs3liosqngTsshcbtuhamgehoo(uiliipIesr/nmfneSfeimgn,tbtUOdby2t)u),aa.)Nf.mflcnteohuTIikdxbmraohpa8srrfbeeoac6eiiulnkspsmamifsisrspspooui-tobpeafateenoalrmrdnifiec,rccnomqkaaea,nrutn,misoiaindopsrFzrageyenezenddnclvcfre.ristoaefheauiial.teicmTnesmtAaFaihmctugiosiis,soseiraswenr2eacdieth.zxlrfh4cxieeotfteoitndeorFnihrnrhl/giociomgainueylgw.uiiichsitnTT-rslhheee/oahhemsixshbnmetripel2sglefeaaxteia(nnparv04n"etesne.-ftir0el4,toofte6o.rina8isAmcrsnt.egmfdFeoufpuTiaFasmsiFnhlmeFre"eeecs/d,fsvsreto,eaue,2aar)llE2sCn.tas"N.Ddrl4Ftgeah-oesiie1mFtnsnsrh5Fttr6Ittle(Fhheea88siPeene"st Table 4-4.8 Maximum Extinction Times and Minimum Bumback Times from ISO/EN Specification G entle A pp lica tio n T e st Forceful A p p lica tio n T e st E xtingu ish ing P erfo rm a nce C lass B u rn b a c k R esistan ce Level E xtinction T im e (m in ) N ot M ore Than B u rn b a ck T im e (m in ) Not Less Than E xtinction T im e (m in ) Not M ore Than B u rn b a ck T im e (m in ) Not Less Than I A-- -- 3 10 B 5 15 3 N ot te s te d C 5 10 3 N ot te ste d D 5 5 3 Not tested II A-- -- 4 10 B 5 15 4 N ot te s te d C 5 10 4 N ot te ste d D 5 5 4 Not tested III B5 15 N ot tested Not tested C5 10 N ot tested Not tested D5 5 N ot tested Not tested AFeFvTFeyFlpIiiIscAanlofopteredrbfoaotsrhmFaaelnvccoeelhoIcCll-,atysaspneedsaFanendvdheylledIvBreolcfsoarrfboaorlncdo-iohfnfoellyr-etycnpotneccAoennFctFreaFnt.tersFa.toersaafrleuoprroopvriodteedi.n Tfoyapmic,apl earnfotircmipaantceed ipseerxfopremctaendcetofboer Table 4-4.10 Examples of Extinguishment Application Densities of Various Test Standards Test S tandard M il S P E C UL 162 IC A O Level B IC A O Level C IS O /E N -- F o rc e fu l Fuel M otor ga soline H eptane K e ro s e n e K e ro s e n e H eptane A pplicatio n R ate (L /m in /m 2 [g p m /ft2]) 1.6 (0 .0 4 ) 1.6 (0 .0 4 ) 2.5 (0.06) 1.6 (0 .0 4 ) 2.5 (0.06) N ozzle M ovem ent P erm itted Yes Yes Y es (horizontal plan e) No E xtin g u ish m e n t A pplicatio n D ensity (L /m 2 fg a l/ft2l) 1.34 (0 .0 3 3 ) 4.9 (0.12) 2.5 (0 .06) 1.6 (0 .0 4 ) 7.6 (0 .1 9 ) US00006335 IACSnwoptenpirtclznieceanarttlitraoiaonntndaelst(--oO20WrP0ga1aar)ntt.eirz3-a:ItmSiopmneicfsiocfriicbSalettiaoLnndiqafuordirdiLzsa,o"twioE-nuE,rxo"pFpaeinraesniEoSnxttaFinnogdauamirsdhCEionNngcM1e5ne6tdr8ai-at3e--,sIfFSooOra,SmGurefnaceeva, US00006336