Plastic color, gloss, haze & dispersion methods
Color coordinates, gloss, transmission, haze, pigment content and microscopic dispersion are different outputs. Compare finished reference and candidate parts under specified illuminant, observer, geometry, thickness, backing and processing history. ISO 18553 is specifically scoped to polyolefin products/compounds, not all dyes or matrices.
Sample considerations
- ASTM D523: Measurement angle, reference, surface texture and specimen preparation
- ASTM D1003: Thickness, surface, geometry and transparent specimen form
- ASTM D2244: Color-space/equation, illuminant, observer, geometry, backing and tolerance
- ASTM E308: Spectral data, illuminant, observer and calculation basis
- ASTM D1603: Known formulation, sample form and thermal preparation
- ASTM D2457: Film support, angle, texture and reference
- ISO/CIE 11664-4: Tristimulus basis, reference white, observer and color difference equation
- ISO 18553: Pipe/fitting/compound, pigment loading and referring specification
- ISO 2813: Coating, plane opaque substrate, texture and measurement geometry