TY - RPRT TI - Standard reference material : certification of standard reference material 1473b, low density polyethylene resin AU - Maurey, J R AU - Schultheisz, C R AU - Blair, W R AU - Guttman, C M PY - 2002 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 260-144 DO - 10.6028/NIST.SP.260-144 ER -