L-P-396B (NOTICE-1), FEDERAL SPECIFICATION: PLASTIC MOLDING AND EXTRUSION MATERIAL, POLYSTYRENE (06-OCT-1988) [S/S BY ASTM-D4549]
L-P-396B (NOTICE-1), FEDERAL SPECIFICATION: PLASTIC MOLDING AND EXTRUSION MATERIAL, POLYSTYRENE (06-OCT-1988) [S/S BY ASTM-D4549]., Cancelled and superseded by ASTM-d4549.