建筑贴膜产品紫外线阻隔率(ULTRAVIOLET REJECTED)是什么意思？

图为：建筑膜对紫外线、红外线、可见光的反射

建筑贴膜产品紫外线阻隔率(ULTRAVIOLET REJECTED)是什么意思？建筑贴膜产品紫外线阻隔率的大小，直接影响着建筑膜对紫外线的阻隔能力。那么什么是紫外线阻隔率呢

ULTRAVIOLET REJECTED(UVR):Ultraviolet rejected is the ratio of ultraviolet solar energy (wavelengthof 300– 380nm) that is transmitted by a glazing system to the total solar ultraviolet energy falling on the glazing system. Note: UV energy is not visible to human eye and is mainly responsible for the degradation and fading of organic matter,upholstery, colors,etc.
 

紫外线阻隔率：紫外线（波长为300-380nm）阻隔率是指穿透贴膜玻璃的紫外线和太阳光中的总的紫外线的百分比。