https://www.hioki.com/sg-en/learning/applications/detail/id_113414
Measurement of Power, Chromaticity, Color Temperature, Color Rendering Index, and Brightness of LED...
color temperaturemeasurementpowerchromaticityrendering
https://standards.iteh.ai/catalog/standards/astm/7b654126-20f4-43b2-b674-235ca8ca2e21/astm-e3165-18?reviews=true
ASTM E3165-18 - Nighttime Retroreflected Chromaticity Testing
ASTM E3165-18 details test methods for measuring nighttime retroreflected chromaticity of sheeting-ensuring compliance with industry safety and color standards.
astmnighttimeretroreflectedchromaticitytesting