Craig, As you know, the commodity classification is based on the product, the packaging and the pallet type. As such, your foam trays have to be taken into account by weight or by volume. NFPA 13, Fig 20.4.3.3(a) and (b) and I don’t have a book with me but pretty sure frozen food on polystyrene trays is listed as a Group A plastic in the annex list….
Not sure NFPA 13 has any dark corners, though the color of the new edition is dark gray ;-) Bob Caputo, Lurking the dark corners of Dubai this week AFSA On Wed, Dec 15, 2021 at 2:49 AM Prahl, Craig/GVL via Sprinklerforum < [email protected]> wrote: > I have searched the from the deepest depths to the highest heights within > NFPA 13 for a solution and am coming up empty. > > We have a freezer warehouse, storing packaged meats on foam trays which > are placed in plastic trays. The frozen meat per NFPA 13 is a class III, > the kicker is the exposed, expanded plastic tray which represents about 63% > of the package load. They claim to only put about 2.5 lbs of meat in a > plastic tray that weighs 4.4 lbs. This is pushing us into considering this > as a Group A plastic commodity. > > I have found no system criteria for a freezer warehouse with 22' of racked > storage and a 30 ft ceiling/roof height and exposed, unexpanded group A > plastic. Any options we find show them as being Wet systems only. > > I am starting to dig into the FM data sheets but was looking to see if > anyone has any insight or if I've missed some option hidden away in the > dark corners of NFPA 13. > > Quell only goes up to Class III commodities. > > Craig Prahl | Jacobs | Group Lead/SME – Fire Protection | > [email protected] | www.jacobs.com > 1041 East Butler Road Greenville, South Carolina 29606 > CONTACT BY: email or MS TEAMS > > > ________________________________ > > NOTICE - This communication may contain confidential and privileged > information that is for the sole use of the intended recipient. Any > viewing, copying or distribution of, or reliance on this message by > unintended recipients is strictly prohibited. If you have received this > message in error, please notify us immediately by replying to the message > and deleting it from your computer. > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > -- Bob Caputo, CFPS *President* *American Fire Sprinkler Association* p: 214-349-5965 ext124 w: firesprinkler.org <https://www.facebook.com/firesprinkler.org/> <https://twitter.com/afsa/status/1039528345367732224> <https://www.linkedin.com/company/american-fire-sprinkler-association-afsa-/> <https://www.instagram.com/firesprinklerorg/> *Train a safer, more efficient workforce.* By enrolling your employees in the AFSA Apprenticeship Training Series for Sprinkler Fitters <https://www.firesprinkler.org/WWW/Education/Apprentice_Training/WWW/Education/Apprenticeship_Training.aspx?hkey=e88ef09e-d74c-407f-abcd-995aff866149>, you will reap the benefits of a qualified, professional installation crew. Well-trained employees will work smarter, increasing your company's productivity and, in turn, its profits. Learn more <https://www.firesprinkler.org/WWW/Education/Apprentice_Training/WWW/Education/Apprenticeship_Training.aspx?hkey=e88ef09e-d74c-407f-abcd-995aff866149> . _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
