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Found 20510 dataset(s) matching "Reference".
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SRM 3122 Lot 230104 electronic files containing the certified value and uncertainty, and the data used to assigned that value.
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This data collection contains 5,228 infrared spectra of different compounds along with chemical structures for most of them. Spectra are provided on a CD-ROM in the JCAMP-DX (Joint Committee for...
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Calendar Year 2025 City Holidays. Offices are closed.
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NIST Tables of X-Ray Mass Energy-Absorption Coefficients and Mass Attenuation Coefficients - SRD 126
Tables of X-Ray Mass Attenuation Coefficients and Mass Energy - Absorption Coefficients from 1 keV to 20 MeV for Elements Z = 1 to 92 and 48 Additional Substances of Dosimetric Interest include...
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Liquid-chromatography-mass spectrometry (LC-MS) raw data sets from various instruments delivered in their native instrument format. 31 files in all. 7.5 GB data.
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The NISTmAb Interlaboratory NMR Study is a joint effort between 25 organizations to evaluate the performance of two-dimensional (2D) heteronuclear NMR as used to characterize the high order...
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FLYCHK provides a capability to generate atomic level populations and charge state distributions for low-Z to mid-Z elements under NLTE conditions.
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The databases ESTAR, PSTAR, and ASTAR calculate stopping-power and range tables for electrons, protons, or helium ions. Stopping-power and range tables can be calculated for electrons in any...
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This site, developed in the Physics Laboratory at NIST, addresses three topics: fundamental physical constants, the International System of Units (SI), which is the modern metric system, and...
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SRM 690 Iron Ore (Canada) is for use in checking chemical methods of analysis and in calibration with instrumental methods of analysis. This data is public in the Certificate of Analysis for this material.
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This database provides theoretical values of energy levels of hydrogen and deuterium for principle quantum numbers n = 1 to 200 and all allowed orbital angular momenta l and total angular momenta...
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The data that formerly appeared here have been superseded by the data that now appear at the Decay Data Evaluation Project http://www.lnhb.fr/nuclear-data/nuclear-data-table/.
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Dataset for multiple publishable figures in the paper entitled "Quasi-continuous voltage standard using sinusoidal and pulse-driven Josephson junction arrays" submitted to Meas. Sci. and Tech....
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CO2 is studied using dispersed synchrotron radiation in the 650 Å and 840 Å spectral region. The vibrationally resolved photoelectron spectra are analyzed to generate relative vibrational...
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This data set consist of rebinned data, with and without efficiency corrections, from the kl, km, and kn emission lines of the molybdenum x-ray spectrum.
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- space-delimited 8-column text file with 6 lines of comments at the beginning. format is :# data set structure # column 1: energy, ev # column 2: system efficiency # column 3, 4: raw intensity and standard error # column 5, 6: raw background and standard error # column 7, 8: efficiency corrected net intensity and standard error
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It may be possible to use a mixture of known peptides run on a linear gradient to create a model that can be used to predict an unknown LC gradient of unknown samples based on deviation from the...
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Electronic files containing certified values and their uncertainties, and the data used to assign those values.
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This X-ray transition table provides the energies and wavelengths for the K and L transitions connecting energy levels having principal quantum numbers n = 1, 2, 3, and 4. The elements covered...
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This data set consist of two representations of the electron-induced copper k-alpha x-ray emission spectrum. One file contains rebinned counting data, and is close to 'raw'. The second file...
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Database of MRI quantitative measurements gathered from literature and experimental studies, for tissues and synthetic materials.Additionally, a code base is provided to aid in finding MRI tissue...
