TY - RPRT TI - Standard reference materials : certification of the rheological behavior of SRM 2491, polydimethylsiloxane AU - Schultheisz, Carl R AU - Flynn, Kathleen M AU - Leigh, Stefan D PY - 2003 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 260-147 DO - 10.6028/NIST.SP.260-147 ER -