TY - RPRT TI - Interim criteria for polymer-modified bitiminous roofing membrane materials AU - Rossiter, Walter J, Jr AU - Seiler, James F PY - 1989 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST BSS 167 DO - 10.6028/NIST.BSS.167 ER -