*Please note, we are working to update this training to match the standards cited on the new exams.* Back to top NAFED handles certification renewals. All individuals who successfully complete a certification exam will receive information regarding criteria for renewal.For more information about our certification renewal policy, click here.Background Following reports of a fire incident involving a sprinkler system that contained a high concentration antifreeze solution, research and standards development activities were begun to address concerns raised by the combustibility of antifreeze solutions in residential sprinkler systems.

It is important to remember that, while NFPA sprinkler standards allow the limited use of antifreeze in existing systems as an option to address freeze potential, they do not require the use of antifreeze in sprinkler systems.

Both in designing new NFPA 13D systems and evaluating existing systems, owners and contractors are encouraged to investigate other methods of maintaining wet pipe systems in environments where freezing of pipes may be a concern.

This summary is not intended to provide all of the details or all of the provisions; the current applicable NFPA sprinkler standards, should be directly consulted for a complete and accurate understanding of the requirements related to the use of antifreeze.

Current requirements for sprinkler systems containing antifreeze – a summary The current provisions in NFPA standards relating to the use of antifreeze in sprinkler systems concerning are contained in the following standards: New Sprinkler Systems (i.e., installed after September 30, 2012) Containing Antifreeze – NFPA 13, NFPA 13D and NFPA 13R Sprinkler Systems With limited exceptions, all new antifreeze systems (systems installed after September 30, 2012) are required to use listed antifreeze solutions.

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ICC/NAFED Certified Portable Fire Extinguisher Technician Exam 100 questions, multiple choice, with a 2-hour limit.

Since no listed solutions currently exist, other freeze protection design approaches must be employed for new systems.

For existing systems where traditional antifreeze solutions remain an option, consideration should still be given to alternatives to the use of antifreeze.

Several alternative design options exist including the use of insulation, heating areas where sprinkler piping is run, or the use of dry pipe and preaction systems in areas subject to freezing.