Nadal, M.
and Barnes, P.
(1998),
Near Infrared 45{degrees}/0{degrees} Reflectance Factor of Pressed Polytetrafluoroethylene (PTFE) Powder, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD
(Accessed October 7, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Near Infrared 45{degrees}/0{degrees} Reflectance Factor of Pressed Polytetrafluoroethylene (PTFE) Powder
Published
Author(s)
,
Abstract
Pressed polytetrafluoroethylene (PTFE) powder is commonly used as a reflectance standard for bi-directional and hemispherical geometry. The radiometric and spectrophotometric community has demonstrated the need for the complete characterization of such of a standard. This publication presents the preliminary results on the reflection properties of PTFE in the near infrared region to expand the reflectance factor scale, as well as the measurements in the visible spectral region for continuity. The resulting variations in 45°/0° reflectance factor with sample preparation are briefly discussed.Citation
Journal of Research (NIST JRES) -
Volume
104 No. 2
NIST Pub Series
Pub Type
NIST Pubs
Keywords
45°/0° reflectance factor, bidirectional reflectance distribution, diffuse reflectance, pressed polytetrafluoroethylene powder
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact [email protected].
Created December 1, 1998, Updated February 17, 2017