TY - GEN AU - E E Hughes AU - W D Dorko AU - E P Scheide AU - L C Hall AU - J K Taylor C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1973-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.73-292 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1973 TI - Gas generation systems for the evaluation of gas detecting devices: ER -