TY - RPRT TI - Cleaning of aged EPDM rubber roofing membrane material for patching: analytical techniques for surface characterization AU - Rossiter, Walter J Jr AU - Nguyen, Tinh PY - 1991 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 4525 DO - 10.6028/NIST.IR.4525 ER -