Thank you Scott. They are non-miscible. And we have flash point less than 200ºF. On DS 7-29 from FM,Table 15... There is not way to protect. I think, the only way is a new "Outside Cut-Off Room" with protection or "Detached Building" with out protection.
From: "å... ...." <[email protected]> Reply-To: <[email protected]> Date: Tue, 31 May 2011 22:09:00 +0400 To: <[email protected]> Subject: Close head sprinkler with foam for flammable liquid >Gerzayn: > >I would firstly determine if these are miscible or not. > Get samples, at least 100 mL, and mix with water; observe and decide. > If these are pure oils and extracts, they will be immiscible. > No way of knowing the oil/extract concentrations unless you ask or >obtain samples. > Flammable liquids presented as pure oils or extracts in plastic >containers are a REAL fire hazard. > I am not looking up the exact protection criteria, so I don't know >precisely, but it will be serious. > >Miscible liquid protection is usually a bit downgraded from that for >immiscible, if that is what > 0.6 gpm/sq. ft poses as. > >Get the best quality foam that you can. Citrus oil probably has acetates, >which are polar. If there > are a lot of acetates, you are going to want to deliver the foam onto >the surface as gently as you > can. That means your kind of screwed for optimal "soft-application" >from an automatic overhead > discharge system. Specify a QUALITY alcohol-resistant foam. A >quality foam can last 20 years, and knock down a pool > fire with no more than 0.1 gpm/sq. ft. Include in the bladder tank >capacity, half again as much > foam as prescribed for extinguishment, to control the room during >overhaul. > >I would also specify at least a couple a 100-lb dry chemical extinguisher. > Otherwise, if it is a spill fire > without dry chem, you may be waiting until the upper containers burn >down before the foam starts to work. > >I would have a full forward-flow test header, and a drainage and clean-up >plan. > > >Segue FM, tienen la voz. > > >Scot Deal >Excelsior Fire Engineering >_______________________________________________ >Sprinklerforum mailing list >[email protected] >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > >For Technical Assistance, send an email to: [email protected] > >To Unsubscribe, send an email to:[email protected] >(Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
