NIST12

NIST12 is a standard reference database of atomic masses and isotopic compositions maintained by the National Institute of Standards and Technology (NIST).

The purpose of NIST12 is to provide accurate and reliable data on atomic masses and isotopic compositions for use in scientific research, industrial applications, and various fields of study.

NIST12 is created and maintained through extensive research, experimental measurements, and data analysis conducted by experts at NIST. The database is regularly updated with new measurements and improvements to ensure accuracy and relevance.

NIST12 provides data on atomic masses, isotopic compositions, natural abundances of isotopes, as well as uncertainties associated with these measurements. It also includes information on decay modes and nuclear structure.

Scientists, researchers, engineers, educators, and individuals in various industries can benefit from using NIST12 as a reliable source of reference data for their work, calculations, experiments, and educational materials.

Yes, NIST12 is freely available to the public. It can be accessed through the NIST National Center for Nuclear Data website or downloaded for offline use.

NIST12 can be accessed online through the NIST National Center for Nuclear Data website. It is also available for download in various formats, including ASCII and XML.

Yes, NIST12 data can be used for commercial purposes. However, it is recommended to consult the NIST usage guidelines and properly attribute the data to acknowledge its source.

While NIST12 strives to provide accurate and reliable data, there may be inherent limitations and uncertainties associated with experimental measurements and scientific understanding. The database includes information on uncertainties to help users make informed decisions.

NIST12 is regularly updated as new measurements and improvements are made. Users are encouraged to check for updates on the NIST National Center for Nuclear Data website to ensure they have the most current version.