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To eliminate measurement-base trade barriers to international commerce, Key Comparisons (KCS) are now being planned in the newly formed Working Group for Fluid Flow (WGFF) in the CIPM to quantify the equivalency of the flow standards maintained in the
R. H. Christenson, S. H. Duh, F. S. Apple, G. S. Bodor, David M. Bunk, J. J. Dalluge, Mauro Panteghini, J. D. Potter, Michael J. Welch, A. H. Wu, S. E. Kahn
The certification of a polyethylene standard reference material, SRM 2885, is described. The Mw of SRM 2885 by light scattering was determined to be 6.28 x 10 +3 g/mol with a sample standard deviation of 0.39 x 10 +3 g/mol. A combined expanded uncertainty
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