Here is an informal interpretation on the issue: Dear Mr. Wilson,
This email is in response to your request for an informal interpretation sent [email protected]. You have referenced theTentative Interim Amendment (TIA) issued onthe 2011 Edition of NFPA 25 on March 1, 2011 (TIA 11-1). Specifically, you have asked if this is retroactive to older editions of NFPA 25. The answer to your question is “no.” However, it is important to note that NFPA considers a new edition of a document to override the previous edition. In other words, when a new edition is published the old edition to no longer valid in the NFPA system. When a standard is adopted into law with a specific edition, it may take time for that law to catch up with the new publications. In these cases, it is important to understand the intent of the TIA and apply it as best as possible working with the jurisdiction. When a TIA is issued by an NFPA Committee it is considered “emergency” information that the public needs to be aware of as soon as possible and therefore it cannot wait until the next revision of the document. If you have any further questions, please do not hesitate to call me. It should be noted that the above is my opinion. It has not been processed as a formal interpretation in accordance with the NFPA Regulations Governing Committee Projects and should therefore not be considered, nor relied upon, as the official position of the NFPA or its Committees. Very truly yours, Victoria B. Valentine, P.E. Director of Product Standards Sent from my iPhone On Aug 5, 2013, at 9:36 AM, "Morey, Mike" <[email protected]> wrote: > That's only for existing systems to remain in service as far as I know, from > the TIA: > 7.6.2.1 > Except as permitted in 7.6.2.2, antifreeze solutions shall be listed for use > in sprinkler systems. > 7.6.2.2* > Premixed antifreeze solutions of propylene glycol shall be permitted to be > used with ESFR sprinklers where the ESFR sprinklers are listed for such use > in a specific application. > > > > Mike Morey, SET, CFPS > Sprinkler Designer > BMW Constructors, Inc. > O: 317.651.0596 | C: 317.586.8111 > www.bmwc.com <http://www.bmwc.com/> > > > ________________________________ > > From: [email protected] on behalf of > [email protected] > Sent: Mon 8/5/2013 9:33 AM > To: [email protected] > Subject: Re: Antifreeze > > > > Gents: > > > MY understanding of (current) requirements is - okay if pre-mixed in factory > (clearly marked on container) AND "approved" by licensed Fire Protection > Engineer...And YES, we continue to design using glycerin (CPVC) in > residential (including our previously cited $ 45M house here in NM)... > > > > Regards to all- > > > > Jerry > > > [email protected] > Santa Fe, New Mexico USA > > > -----Original Message----- > From: Morey, Mike <[email protected]> > To: sprinklerforum <[email protected]> > Sent: Mon, Aug 5, 2013 7:23 am > Subject: RE: Antifreeze > > > Whether or not they "enforce" the bulletins, they are considered retroactive > to > ALL editions. Anyone installing a new AF system without listed solution > (which > doesn't exist) puts themselves in great legal peril from my understanding of > the > current situation. Even the "premix" on the market now no longer meets the > requirements of the code. > > > > Mike Morey, SET, CFPS > Sprinkler Designer > BMW Constructors, Inc. > O: 317.651.0596 | C: 317.586.8111 > www.bmwc.com <http://www.bmwc.com/> > > > ________________________________ > > From: [email protected] on behalf of Forest > Wilson > Sent: Mon 8/5/2013 8:44 AM > To: [email protected] > Subject: Re: Antifreeze > > > > It's worth noting that the bulletins issued by NFPA on antifreeze affect the > current edition of 13. > Some states have previous versions of 13 adopted and don't enforce the > bulletins. > > > > Sent from my iPhone > > On Aug 5, 2013, at 7:43 AM, Craig Leadbetter <[email protected]> > wrote: > >> I really appreciate the responses. I was looking for confirmation that my >> thinking was correct. I lost a couple of bid jobs recently, one which was a >> modification to an existing antifreeze system, essentially tripling the >> size of the system, and the other was a wet and dry system. >> >> I expected to lose the job that modified the antifreeze system. I talked >> with the engineer prior to the bid but was told to bid what was shown and >> it would be modified after the bid. >> >> The combination system I knew I had a good price and was surprised when it >> was given to another local company (same company that is doing the other >> project). Well, I was curious so I visited the job site yesterday and was >> very surprised to see the antifreeze loop ( this is Northern Michigan, >> Marquette area) instead of the dry system. This shed some light on the >> bid. I just wanted to make sure that my thought process was correct and >> that I really shouldn't be installing antifreeze systems, at least not with >> what freeze point solutions are currently available. >> >> -- >> Craig Leadbetter >> Safeguard of Marquette >> PO Box 116 >> Marquette, MI 49855 >> >> (O) 906-475-9955 >> (F) 906-475-5474 >> (C) 906-362-5393 >> >> [email protected] >> >> >> >> >> >> On Mon, Aug 5, 2013 at 12:47 AM, Rod DiBona <[email protected]> wrote: >> >>> Craig, >>> >>> www.nfpa.org/antifreeze has the information you are looking for. Pre mix >>> is the only solution that is allowed in new installs. 48% glycerin and 38% >>> glycol. I don't know where Forest is putting in his antifreeze systems, >>> hopefully somewhere warm but these numbers are not going to do the job >>> where we are. Not to mention the liability thing which is a whole different >>> topic like Cecil said. So essentially not a viable option for new installs >>> in cold country. Run if they are telling you to do it. >>> >>> Rod at Rapid >>> >>> ________________________________________ >>> From: [email protected] [ >>> [email protected]] on behalf of Craig >>> Leadbetter [[email protected]] >>> Sent: Sunday, August 04, 2013 1:27 PM >>> To: [email protected] >>> Subject: Antifreeze >>> >>> Are antifreeze systems allowed to be installed. >>> >>> I was understood that no one was making an approved antifreeze. Am I wrong? >>> >>> >>> Craig Leadbetter >>> >>> Safeguard of Marquette >>> >>> >>> >>> >>> >>> -- >>> Craig Leadbetter >>> Safeguard of Marquette >>> PO Box 116 >>> Marquette, MI 49855 >>> >>> (O) 906-475-9955 >>> (F) 906-475-5474 >>> (C) 906-362-5393 >>> >>> [email protected] >>> _______________________________________________ >>> 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 >>> >> _______________________________________________ >> 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 > > > _______________________________________________ > 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 > > > _______________________________________________ > 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
