Just FYI about this - Notice that in the 2017 edition the highlighted text [all portions of cold storage areas] was removed in the annex material as an example of a harsh environment for sprinklers.
2014 NFPA 25: 5.3.1.1.2* Where sprinklers are subjected to harsh environments, including corrosive atmospheres and corrosive water supplies, on a 5-year basis, either sprinklers shall be replaced or representative sprinkler samples shall be tested. A.5.3.1.1.2 Examples of these environments are paper mills, packing houses, tanneries, alkali plants, organic fertilizer plants, foundries, forge shops, fumigation areas, pickle and vinegar works, stables, storage battery rooms, electroplating rooms, galvanizing rooms, steam rooms of all descriptions including moist vapor dry kilns, salt storage rooms, locomotive sheds or houses, driveways, areas exposed to outside weather, around bleaching equipment in flour mills, all portions of cold storage areas, and portions of any area where corrosive vapors prevail. Harsh water environments include water supplies that are chemically reactive. 5.3.1.1.3 Where historical data indicate, longer intervals between testing shall be permitted. 2017 NFPA 25: 5.3.1.1.2* Where sprinklers are subjected to harsh environments, including corrosive atmospheres and corrosive water supplies, on a 5-year basis, either sprinklers shall be replaced or representative sprinkler samples shall be tested. A.5.3.1.1.2 Examples of these environments are paper mills, packing houses, tanneries, alkali plants, organic fertilizer plants, foundries, forge shops, fumigation areas, pickle and vinegar works, stables, storage battery rooms, electroplating rooms, galvanizing rooms, steam rooms of all descriptions including moist vapor dry kilns, salt storage rooms, locomotive sheds or houses, driveways, areas exposed to outside weather, around bleaching equipment in flour mills, and portions of any area where corrosive vapors prevail. Harsh water environments include water supplies that are chemically reactive. 5.3.1.1.3 Where historical data indicate, longer intervals between testing shall be permitted. Respectfully, David Blackwell David Blackwell, P.E. Chief Engineer (803)896-9833 Office of State Fire Marshal 141 Monticello Trail | Columbia, SC 29203 http://statefire.llr.sc.gov/ (803)896-9800 "Our firefighting starts with plan review..." From: Sprinklerforum <[email protected]> On Behalf Of Kaiser, Dan (DPS) via Sprinklerforum Sent: Tuesday, August 20, 2019 3:31 PM To: [email protected] Cc: Kaiser, Dan (DPS) <[email protected]> Subject: RE: Dry Flex Balcony Sprinklers *** SCDLLR NOTICE *** • This email is from an external email address. Please use caution when deciding whether to open any attachments or when clicking links. • Personally Identifiable Information (PII) should not be included in e-mail text or attachments. Do not save or transmit PII unencrypted. [cid:[email protected]] [cid:[email protected]] Dan Kaiser From: Sprinklerforum [mailto:[email protected]] On Behalf Of Mike Kramer via Sprinklerforum Sent: Tuesday, August 20, 2019 10:16 AM To: [email protected]<mailto:[email protected]> Cc: [email protected]<mailto:[email protected]> Subject: Dry Flex Balcony Sprinklers Has anyone seen any information about inspecting dry flex balcony sprinklers after being installed? Regular dry sprinklers need to be inspected, tested, or replaced every 10 years. Mainly wondering if the flex dry sprinklers are any different because most of the time they will be impossible to remove without cutting drywall or siding out. Mike Kramer --- Sent from my Windows PC with GMX Mail<https://gcc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.microsoft.com%2Fstore%2Fapps%2F9WZDNCRDRH19%3Fcid%3Dsignature_link&data=02%7C01%7Cdan.kaiser%40state.mn.us%7C81c967fb9eff478785e008d725814648%7Ceb14b04624c445198f26b89c2159828c%7C0%7C0%7C637019109468265221&sdata=eiSSIhW2FlR2hC5wh1M06xoLCmrE6fCzo4jws4l2VCs%3D&reserved=0>.
_______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
