TY - GEN AU - Martin, Keith G C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1965-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.8646 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1965 TI - Assessment of photooxidation of flexible plastics roofing by a colorimetric method: ER -