ASTM E 179 Standard Guide for Selection of Geometric Conditions for Measurement of Reflection and Transmission Properties of Materials
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ASTM E 179 Document Information:
Title
Standard Guide for Selection of Geometric Conditions for Measurement of Reflection and Transmission Properties of Materials
ASTM International
Publication Date:
Nov 10, 1996
Scope:
This guide is intended for use in selecting terminology, measurement
scales, and instrumentation
for describing or evaluating such appearance characteristics as
glossiness, opacity, lightness,
transparency, and haziness in terms of reflected or transmitted light.
This guide does not consider
the spectral variations responsible for color, but the geometric
variables described herein can
importantly affect instrumentally measured values of color. This guide
is general in scope rather
than specific as to instrument or material.
Keywords:
- geometric conditions
- reflection
- transmission
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