TY - RPRT TI - A method of test for tracer gas test of an outdoor furnace designed for installation without a flue pipe AU - Liu, S T AU - Kelly, G E PY - 1998 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 6257 DO - 10.6028/NIST.IR.6257 ER -