I agree with craig - group A plastic or not... there is specific guidance for tires for a reason. It is similar to the difference between a Class 3 commodity and Idle Pallet Storage or Expanded/Unexpanded plastics... Pile storage vs rack storage. Fire testing has shown that the product form and storage arrangement is very important. Just because it is a certain material does not mean it will burn the same way.
Matt -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, January 25, 2018 1:38 PM To: [email protected] Subject: Re: Rubber Tire Storage Tires are hard to get lit and therefore hard to put out once you do (thermal inertia). Maybe the reason for the separate standard, more than the material composition, is the expected fire growth/decline rate, decline whether sprinklered or not. I read somewhere years ago with a tire storage fire it might reach a point where the best thing to do would be hop on a fork truck and haul them out to the yard and let them go for a day or two! Brad Quoting "Prahl, Craig/GVL" <[email protected]>: > If you were dealing with purely synthetic rubber in slabs that would > be a whole different story. But a slab of rubber is different than a > tire. > > > Craig L. Prahl > Fire Protection Group Lead/SME > JACOBS - CH2M > 200 Verdae Blvd. > Greenville, SC 29607 > Direct - 864.920.7540 > Fax - 864.920.7129 > CH2MHILL Extension 77540 > [email protected] > > > From: Sprinklerforum > [mailto:[email protected]] On Behalf Of > John Paulsen > Sent: Thursday, January 25, 2018 1:30 PM > To: [email protected] > Subject: RE: Rubber Tire Storage [EXTERNAL] > > James: > > He doesn't think NFPA-13, Chapter 18 applies? I understand his > confusion, the commodities definitions do reference synthetic rubber > as a Group A Plastic, but it doesn't specifically reference tires in > the definitions.... > > John Paulsen - SET > Crown Fire System Design > 6282 Seeds Rd. > Grove City, OH 43123 > P - 614-782-2438 > F - 614-782-2374 > C - 614-348-8206 > > > > From: Sprinklerforum > [mailto:[email protected]] On Behalf Of > James Crawford > Sent: Thursday, January 25, 2018 12:56 PM > To: > [email protected]<mailto:[email protected]> > Subject: Rubber Tire Storage > > NFPA #13 (2013) is my reference. > > I have an AHJ that is telling me that Rubber Tires are classified as > a Group "A" plastic for the purpose of commodity classifications. > > I have informed him that Rubber Tires are a commodity classification > on their own, but he disagrees, he says there are a synthetic rubber > so are a Group "A" plastic. > > I have shown him the Table A5.6.3 for Commodity classifications in > NFPA #13 where rubber tires are not mentioned and chapter 18 that > deals with Rubber Tire storage but he still disagrees. > > Any suggestions? > > > Thank you > > > James Crawford > Phaser Fire Protection Ltd. > Phone 604-888-0318 > Fax 604-888-4732 > Cel 604-790-0938 > Email [email protected]<mailto:[email protected]> > Web www.phaserfire.ca<http://www.phaserfire.ca> _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
