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What is haze or turbidity?

Abstract: 这篇文章解释了雾度或浊度的定义和影响。根据UNE EN 2155-9标准，雾度指材料中微小颗粒或表面缺陷引起的光散射，这会使通过材料的视觉变得模糊或图像失真。高雾度值表明材料表面不规则，可能导致透过材料的物体看起来扭曲不清。雾度测量对于质量控制尤为重要，因为它能揭示材料的视觉质量问题，如模糊或眩光现象，这在ASMT D 1003标准中也有所描述。

What is Haze or Turbidity? Picture 1

According to the UNE EN 2155-9 standard, haze or turbidity is defined as "the scattering of light by the accumulation of tiny particles within a material or by very small surface defects". Thus, as indicated by the same standard, this may cause vision to blur through materials or image propagation beyond its practical limits.

In this way, the measurement of haze provides information about the amount of light scattered by the haze as it passes through a transparent sample. Therefore, if the surface or substance has many irregularities, the haze value will be higher and objects seen through the material may appear distorted and less clear.

What is Haze or Turbidity? Picture 2

Therefore, turbidity and light transmittance data are particularly useful in quality control, as light scattered when passing through transparent materials can adversely affect the product. One of the effects, as we said, is that the material has a hazy or cloudy appearance. Another effect noted by the ASMT D 1003 standard may be obscuring glare, similar to the glare produced by a car windshield when driving facing the sun.

What is Haze or Turbidity? Picture 3

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