freezemaster™ Antifreeze Blog
In-depth antifreeze and fire safety advice and insights from the experts behind the freeze protection technology like no other.
Many are not aware that the National Fire Protection Association (NFPA) fire sprinkler standards require new antifreeze systems to use an agency-listed antifreeze. And these same standards require that existing systems use an agency-listed antifreeze by September 30, 2022. In fact, when safety concerns led to these NFPA updates, no listed product was available.
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Codes, Standards & Approvals | FAQs
As you select an antifreeze for your fire sprinkler system, it is important that you consider these questions: Does it meet the rigorous technical challenges of becoming listed as required by NFPA? Is it listed and approved for use with the application and the size of the system? Will it protect the system against damage from exposure to the severe cold? How does it contribute to the prevention of corrosion and microbiologically influenced corrosion (MIC)? In this blog post, I address why the answers to these questions are so critical, and the advantage freezemaster™ antifreeze offers for fire sprinkler systems in Residential, Light Hazard, Ordinary Hazard and Storage applications.
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UL 2901 was established in December 2013, outlining certification requirements for antifreeze solutions for wet pipe fire sprinkler systems. To meet the UL 2901 requirements, antifreeze products must prove corrosion resistance (important for metal-based fire sprinkler systems), fire performance (i.e., flammability), hydraulic characteristics, human health and environmental impact, and meet marking and installation specifications.
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When a fire sprinkler system activated as designed in 2009 to suppress a cooking fire – and instead intensified the blaze, killing one and injuring four – the use of antifreeze in sprinkler systems changed forever. The sprinkler system contained antifreeze that had been mixed improperly before application. A high concentration of the antifreeze agent caused the flames to virtually explode when the sprinkler system activated.
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Codes, Standards & Approvals | Temperature
NFPA 25 is the standard for the inspection, testing and maintenance of water-based fire protection systems. Once adopted by local code bodies, authorities having jurisdiction (AHJs) require strict adherence to NFPA 25 – and frankly, there is no reason not to design, repair or maintain a system to the standard.
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