GB/T 21382-2008
ActiveSpecification for optical requirements of photoluminescent (phosphorescent) safety marking
光致发光（磷光）安全标记光学性能要求
Application Summary AI generated
GB/T 21382-2008 specifies the optical performance requirements for photoluminescent (phosphorescent) safety markings, including luminance, decay time, and chromaticity coordinates. It is applied in civil engineering contexts such as building evacuation routes, emergency exit signs, and low-location lighting systems to ensure visibility during power failures or smoke-filled conditions. The standard is used by manufacturers and testing laboratories to verify that safety markings meet minimum photometric criteria for effective emergency guidance.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.