Two Apertures Haze Meter with Aperture Φ20mm Φ8mm Conforms to ASTM Standards
Double standard ISO & ASTM. Transmittance ： 0/D(Parallel light illumination, diffuse viewing);Conform to the standards:ASTM D1003/1044, GB/T 2410, JJF 1303-2011,CIE 15.2,JIS K7105,JIS K7361,JIS K 7136.