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Standards

Reference materials

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Displaying 501 - 525 of 546

NIST 101. Computational Chemistry Comparison and Benchmark Database

November 1, 1999
Author(s)
Russell D. Johnson III
The CCCBDB is a collection of experimental and theoretical thermochemical properties for 580 neutral gas-phase species. The goal of the database/website is to provide a benchmark set of molecules and reactions for the evaluation of ab initio computational

NIST Methods for the Certification of SRM 1941a, Organics in Marine Sediment, and SRM 1974a, Organics in Mussel Tissue (Mytilus edulis)

March 1, 1998
Author(s)
Michele M. Schantz, Bruce A. Benner Jr, M K. Donais, M. J. Hays, William R. Kelly, Reenie M. Parris, Barbara J. Porter, Dianne L. Poster, Lane C. Sander, Katherine E. Sharpless, Robert D. Vocke Jr., Stephen A. Wise, M Levenson, Susannah B. Schiller, M Vangel
The replacement Standard Reference Materials [SRM 1941, Organics in Marine Sediment, and SRM 1974, Organics in Muscle Tissue [Mytilus edulis], have been prepared and analyzed for the determination of trace organic constituents. SRM 1941a has been issued

Recertification of SRM 706a, a Polystyrene

January 1, 1998
Author(s)
Kathleen M. Flynn, William R. Blair, J R. Maurey
The recertification of the polystyrene standard reference material, SRM 706a, is described. The Mw of SRM 706a by light scattering was determined to be 2.85 x 10 5 g/mol with a sample standard deviation of 0.019 x 10 5 g/mol. A combined expanded
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