2-94: Measurement of Total Transmittance, Diffuse Transmittance and Transmittance Haze

This TC will investigate how to improve the accuracy of the conventional haze measurement methods and develop new techniques to obtain total transmittance, diffuse transmittance, and transmittance haze in a single sequence of measurements. In addition to addressing the problem of measurement inconsistency caused by employing different measurement methods or different measurement instruments which has perplexed industry for some time, the study of high haze (> 40 %) measurement is also included. The purpose of this TC is to give guidance to industry for best practice metrology, to enable them to develop and manufacture consistent and reliable products.