A much more lucid response than "Xanax". Good info Craig - thanks for posting this link. I've actually had this conversation a couple times in the context of FP planning, though have never had to deal with an AHJ who second-guessed the standard regarding sprinkler basis of design.
SL From: Sprinklerforum [mailto:[email protected]] On Behalf Of Prahl, Craig/GVL Sent: Thursday, January 25, 2018 10:31 AM To: [email protected] Subject: RE: Rubber Tire Storage Tires are tires. Tires are not plastic milk jugs. Today's modern tires are a composition of numerous materials. Natural and synthetic rubbers are used in various proportions depending the tire use group. But regardless, synthetic rubber or not, the chemical characteristics, ignition and burning properties of materials deemed Group A plastics is not the same as the rubber materials used in tires. Also, the shape and design of the tire and how they are stored make it a unique commodity compared to typical plastic commodities. Tires are not just a group A plastic. https://itstillruns.com/chemical-properties-tires-8176244.html 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]<mailto:[email protected]> 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 [EXTERNAL] 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>
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