TY - RPRT TI - Report No. 7 : a metallurgical investigation of a full-scale insulated rail tank car filled with LPG subjected to a fire environment AU - Early, J G AU - Interrante, C G PY - 1975 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 75-657 DO - 10.6028/NBS.IR.75-657 ER -