Author: Jonathan Willard

Medical Air Quality

Medical Air Quality

Posted by | Jan 7, 2020

NFPA 99 2018 5.1.3.6.1 (2) indicates that medical air shall meet the requirements of medical air USP. However, Table 5.1.12.4.12.3 does not include nitric oxide and sulfur dioxide as contaminates to be tested for even though they are listed in the USP as contaminates. Can you please help clarify why these are not required to be tested for in NFPA 99?

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Zone Valves

Zone Valves

Posted by | Apr 11, 2018

In the 2015 and 2012 edition of NFPA 99, 5.1.4.5.3 says, “Service valves shall be placed in the branch piping prior to any zone valve box assembly on that branch.” Does that mean that on each pipe, to each zone valve box, there shall be a valve that will allow the zone valve to be isolated?

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ASSE 6040

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