Take a sneak peek at the new NIST.gov and let us know what you think!
(Please note: some content may not be complete on the beta site.).

View the beta site
NIST logo
Bookmark and Share

Dr. Robert L. Watters, Jr.

Dr. Robert L. Watters, Jr. is the Associate Director of Measurement Services of the Material Measurement Laboratory. Dr. Watters is also the co-editor of the Journal of Physical and Chemical Reference Data. The NIST Measurements Services Division (MSD) provides customers with the means to obtain NIST Standard Reference Materials®Calibration Services, and Standard Reference Data.

NIST supports accurate and compatible measurements by certifying and providing over 1300 of the highest quality and metrological value Standard Reference Materials to industry, academia, and government. These materials are used to perform instrument calibrations in units as part of overall quality assurance programs, to verify the accuracy of specific measurements, and to support the development of new measurement methods.

The calibration services NIST provides help customers achieve the highest measurement quality and productivity. These services include dimensional, electromagnetic, ionizing radiation, mechanical, optical radiation, thermodynamic, and time and frequency calibrations.

Standard reference data are well-documented numeric data that scientists and engineers use in technical problem-solving, research, and development. These recommended values are based on data extracted from world literature that are assessed for reliability and evaluated to select preferred values.

Honor and Awards: He received the US Department of Commerce Silver Medal in 2009 and the US Department of Commerce Bronze Medal in 1999. He received the Federation of Analytical Chemistry and Spectroscopy Societies Governing Board Citation in 1993, and was the Society for Applied Spectroscopy National Tour Speaker in 1987.

Robert Watters


Associate Director for Measurement Services

Employment History:

He joined the National Bureau of Standards in 1976, and became Group Leader for Atomic and Molecular Spectrometry in 1987. He has participated in the analysis and certification of over 150 Standard Reference Materials. He was a member of the NIST Ad Hoc Committee on Uncertainty Statements, which developed the NIST policy on implementing the ISO Guide to Uncertainty in Measurement. He has presented numerous workshops on applying the ISO principles to measurements in analytical chemistry. He also served as Senior Program Analyst for the NIST Director and as Deputy Chief in the Analytical Chemistry Division. Dr. Watters was a founding member of the Comité International des Poids et Mesures (CIPM) Consultative Committee on Amount of Substance. He led a team that developed an international database system for comparison measurements performed by the world's National Metrology Institutes.


B. S. in Chemistry, 1970
University of Notre Dame

Ph.D. in Analytical Chemistry, 1976
University of Wisconsin


Phone: 301-975-4122
Email: robert.watters@nist.gov