Plastic Optical Testing

Polyhedron Laboratories performs optical testing according to ASTM standards, such as Haze and Luminous Transmittance of Transparent Plastics (ASTM D 1003-00), Refractive Index and Specific Optical Dispersion of Electrical Insulating Liquids (ASTM D 1807-00), Index of Refraction of Transparent Organic Plastics (ASTM D 542-00), Test Method for Specular Gloss (ASTM D 523-89), and Transparency of Plastic Sheeting (ASTM D 1746-03). All ASTM standard descriptions below are paraphrased from the ASTM website (www.astm.org). Due to copyright restrictions, Polyhedron Laboratories cannot make available copies of standards. Standards can be found and are available at www.astm.org.

ASTM D 1003-00

Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics
This test procedure deals with the evaluation of specific wide-angle-light-scattering and light-transmitting properties of planar sections of materials such as basically transparent plastic. A method is provided for the measurement of haze and luminous transmittance.

ASTM D 542-00

Standard Test Method for Index of Refraction of Transparent Organic Plastics
This test method covers a procedure for measuring the index of refraction of transparent organic plastic materials. A refractometer method is offered. This method will cover the range of refractive indices found for such materials. Refractive index measurements require optically consistent samples of uniform refractive index.

ASTM D 523-89

Standard Test Method for Specular Gloss
This test method covers the measurement of the specular gloss of nonmetallic samples for glossmeter geometries of 20, 60, and 85°.

ASTM D 1746-03

Standard Test Method for Transparency of Plastic Sheeting
This test procedure deals with the measurement of the transparency of plastic sheeting in terms of regular transmittance. This is generally applicable to any transparent or translucent material, and it is intended for use with colorless and nominally clear thin sheeting.
Haze ASTM D 1003
Refractive Index
  • Abbe Refractometer
  • Microscopy
ASTM D 1807
ASTM D 542
Specular Gloss Multi-Angle ASTM D 523
Transparency ASTM D 1746

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