Do HunterLab sphere instruments conform to ASTM D1003?

Yes, but note there are two different approved instrument geometries cited in the ASTM 1003 method. Continue reading

How do I measure Haze with EasyMatch QC?
4% polyvinyl alcohol solution showing transmission haze

Haze is the scattering of light by a nearly clear specimen  that results in a slightly cloudy appearance when the sample is viewed in transmission. Continue reading