TY - GEN AU - Paur, R J AU - Bass, A M AU - Norris, J E AU - Buckley, T J C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2003-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.6963 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2003 TI - Standard reference photometer for the assay of ozone in calibration atmospheres: ER -