Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45°:0° or 0°:45°) Geometry
|Publication Date:||1 March 2006|
|ICS Code (Colours and measurement of light):||17.180.20|
This test method covers the instrumental measurement of the reflection properties and color of object-color specimens by use of a spectrophotometer or spectrocolorimeter with a bidirectional optical measuring system, such as annular, circumferential, or uniplanar 45:0 or 0:45 geometry.
This test method is generally suitable for any non- fluorescent, flat object-color specimen. It is especially recommended for measuring retroreflective specimens and specimens of intermediate gloss.
Procedures required for the measurement of fluorescent object color are given in Practice E 991 and Practice E 2153.
Procedures required for the measurement of color using filter colorimeters are contained in Test Method E 1347 and this standard does not address those instruments.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.