NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
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.
NIST Calibration Services Users Guide: Time and Frequency Measurements (NIST SP 250 2002 ED)
Published
Author(s)
T L. Arnold, J L. Marshall
Abstract
The National Institute of Standards and Technology (NIST) Calibration Services Users Guide: Time and Frequency Measurements provides detailed descriptions on NIST calibration and special-test services available. To characterize instruments and devices that are metrologically suitable as reference or transfer standards, a separate Fee Schedule (NIST Special Publication 250 Appendix) is issued annually, providing current prices for the services offered and updates on points-of-contact. (See also the most current information at the Web site: https://shop.nist.gov/ccrz__ProductList?categoryId=a0lt00000013aE2AAI&c….)
Arnold, T.
and Marshall, J.
(2002),
NIST Calibration Services Users Guide: Time and Frequency Measurements (NIST SP 250 2002 ED), Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=200198
(Accessed October 20, 2025)