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.

Calibration services

News and Updates

Now Hear This!

Researchers at the National Institute of Standards and Technology (NIST) have designed and built an optical device that could set a new standard for measuring

Projects and Programs

Measurement Standards

Ongoing
The use of standards is considered a critical component in the assurance of analytical quality, allowing reliable measures of detection limits, accuracy, and

Ocean Color

Ongoing
Ocean color radiometry provides essential information about phytoplankton concentration and dissolved organic matter, and hence about primary productivity

Publications

Evaluating Inter-Laboratory Comparison Data

Author(s)
Enrico Frahm, John D. Wright
The primary purpose of inter-laboratory comparisons is to demonstrate that the uncertainty specifications of the calibration measurement capabilities of the

Models for an Ultraviolet-C Research and Development Consortium

Author(s)
Dianne L. Poster, C Cameron Miller, Yaw S. Obeng, John J. Kasianowicz, Michael T. Postek, Norman Horn, Troy Cowan, Richard Martinello
The development of an international, precompetitive, collaborative, ultraviolet (UV) research consortium is discussed as an opportunity to lay the groundwork

Tools and Instruments

Spectral comparator facilities

Visible to near-infrared spectral comparator facility (Vis/NIR SCF) The Vis/NIR SCF is a monochromator-based system that typically measures the spectral power

Si EUV Photodiode Transfer Standard

Silicon (Si) photodiodes are issued by NIST as transfer standard detectors throughout the extreme ultraviolet spectral region (5 nm to 254 nm). Each device is

Awards