TY - RPRT TI - Standard Reference Materials : Certification of the rheological behavior of SRM 2490, polyisobutylene dissolved in 2, 6, 10, 14-tetramethylpentadecane/ AU - Leigh, Stefan D AU - Schultheisz, Carl R PY - 2002 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 260-143 DO - 10.6028/NIST.SP.260-143 ER -