ANSI/ASHRAE Standard 185.4 establishes a test method for evaluating the efficacy of germicidal ultraviolet systems for microbial inactivation on multiple surface locations in a test room. This standard applies to ultraviolet devices and systems using only germicidal ultraviolet energy for inactivation.


ASHRAE 185.4-2024
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Standard 185.4-2024 — Method of Testing In-Room Ultraviolet Devices and Systems for Microbial Inactivation on Surfaces in a Test Room
ASHRAE , 2024