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Standards

Reference materials

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Displaying 426 - 450 of 533

Certification of a Polystyrene Synthetic Polymer, SRM 2888

November 1, 2003
Author(s)
Charles M. Guttman, William R. Blair, B M. Fanconi, R J. Goldschmidt, William E. Wallace, S Wetzel, David L. VanderHart
The certification of a polystyrene standard reference material, SRM 2888, is described. The M w of SRM 2888 was determined by light scattering to be 7.19 x 10 +3 g/mol with a sample standard deviation of 0.14 x 10 +3 g/mol. A combined expanded uncertainty

Reference Material 8457, Ultra High Molecular Weight Polyethylene 0.5 cm Cubes

April 1, 2003
Author(s)
B M. Fanconi, John A. Tesk, William F. Guthrie
The geometric and surface features of a new NIST reference material, RM 8457 are presented. This reference material is composed of Ultra High Molecular Weight Polyethylene (UHMWPE) in the form of 5 mm cubes. These cubesare intended for use in swelling
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