TY - RPRT TI - Interlaboratory evaluation of the tunnel test (ASTM E 84) applied to floor coverings AU - Lee, T G AU - Huggett, Clayton PY - 1973 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 73-125 DO - 10.6028/NBS.IR.73-125 ER -