TY - GEN AU - P Barnes AU - J Hsia C2 - Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD DA - 1995-01-01 LA - en PB - Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD PY - 1995 TI - 45 ° /0 ° Reflectance Factors of Pressed Polytetrafluorethylene (PTFE) Powder ER -