Description: A unit of SRM 1649b consists of a bottle containing 2 g of particulate material. All the constituents for which values are provided in SRM1649b are naturally present in the …

Buy NIST1649B, a certified reference material for the determination of polycyclic aromatic hydrocarbons, congeners, and inorganic constituents.

Kepler-1649b is a Venus-like exoplanet orbiting Kepler-1649. [1] Kepler-1649 is a type-M red dwarf star estimated to be roughly ¼ the radius of the Sun [2] with only two confirmed planets …

Browse NIST products by name. 16 May 2023 (Updated non-certified values and uncertainties for Ni, Cu, Cr, Mn, and V in Table A7; added particle size values of potential interest to users in …

Mar 28, 2025 · Kepler-1649 b is a super Earth exoplanet that orbits a M-type star. Its mass is 1.03 Earths, it takes 8.7 days to complete one orbit of its star, and is 0.0514 AU from its star. Its …

This Standard Reference Material (SRM) is intended for use in evaluating analytical methods for the determination of selected polycyclic aromatic hydrocarbons (PAHs), nitro-substituted PAHs …

Buy Urban dust - Organic contaminants online from National Institute of Science and Technology (NIST). Certified reference materials for highly accurate and reliable data analysis.

Apr 1, 2000 · Wise, S. , Sander, L. , Schantz, M. , Hays, M. and Benner, B. (2000), Recertification of Standard Reference Material (SRM) 1649, Urban Dust, for the Determination of Polycyclic …

Mar 26, 2025 · These materials assist in identifying legacy organic contaminants such as polychlorinated biphenyls (PCBs)that were commonly used in electrical transformers and …

Buy NIST1649B, a certified reference material for the determination of polycyclic aromatic hydrocarbons, congeners, and inorganic constituents.