Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
7 datasets found
  • Federal

    NIST Atomic Spectra Database - SRD 78    recent views

    National Institute of Standards and Technology —

    This database provides access and search capability for NIST critically evaluated data on atomic energy levels, wavelengths, and transition probabilities that are...
  • Federal

    NIST Atomic Energy Levels and Spectra Bibliographic Database    recent views

    National Institute of Standards and Technology —

    References contained in this database are from Bibliography on Atomic Energy Levels and Spectra, NBS Special Publication 363 and Supplements, as well as current...
  • Federal

    NIST Atomic Transition Probability Bibliographic Database    recent views

    National Institute of Standards and Technology —

    This interactive database, maintained by the NIST Atomic Spectroscopy Data Center, contains more than 8000 references, dating from 1914 through current year and is...
  • Federal

    NIST Atomic Spectral Line Broadening Bibliographic Database    recent views

    National Institute of Standards and Technology —

    This interactive database, maintained by the NIST Atomic Spectroscopy Data Center, contains more than 6000 references, dating from 1889 through current year and is...
  • Federal

    NIST Handbook of Basic Atomic Spectroscopic Data - SRD 108    recent views

    National Institute of Standards and Technology —

    This handbook provides a selection of the most important and frequently used atomic spectroscopic data in an easily accessible format. The compilation includes energy...
  • Federal

    SRM 200b Potassium Dihydrogen Phosphate (Fertilizer Standard)    recent views

    National Institute of Standards and Technology —

    Standard Reference Material 200b Potassium Dihydrogen Phosphate (KH2PO4) - This Standard Reference Material (SRM) is a highly purified and homogeneous lot of...
  • Federal

    SRM 999c Potassium Chloride (High-Purity Chemical)    recent views

    National Institute of Standards and Technology —

    This Standard Reference Material (SRM) is intended for use as an analytical standard of known potassium (K) and chloride (Cl-) content. This lot of potassium chloride...
7 datasets found

You can also access this registry using the API (see API Docs).

Didn't find what you're looking for? Suggest a dataset here.