TY - RPRT TI - Friability of spray-applied fireproofing and thermal insulations : the basis for a field test method AU - Rossiter, Walter J AU - Roberts, Willard E AU - Mathey, Robert G PY - 1987 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 87-3621 DO - 10.6028/NBS.IR.87-3621 ER -