TY - GEN AU - Gravatt, C C AU - LaFleur, Philip D AU - Heinrich, Kurt F J C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1978-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.506 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1978 TI - Proceedings of workshop on asbestos ::definitions and measurement methods ER -