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Maria E. Nadal (Fed)

Maria Nadal is a research chemist in the Sensor Science Division at NIST and the group leader of the Surface and Interface Metrology Group. She joined NIST in 1997 to work in the fields of Spectrophotometry, Color and Appearance, and Photometry. Her areas of research include all aspects of color and appearance, photometry, and measurement uncertainty. She is involved in developing new calibration service, measurement assurance programs, and standard reference materials for surface color, specular gloss, diffuse transmittance, and LED products as well as research in the goniochromatic attributes of special effect coatings. She received a NIST Bronze Award, an ASTM Award of Appreciation, and Woman Government and Defense Technology Award.

In 2017, she did a detail position in the International Legal Metrology group in the Office of Weights and Measures at NIST. In 2018, she was an analyst for the NIST Program Coordination Office. Currently, she is serving as the acting deputy division chief of the Sensor Science Division.

Research projects

Professional Activities

  • US Delegate to the BIPM CCPR
  • Chair of the CCPR Working Group on Strategic Planning
  • NVLAP Quality and Technical Assessor
  • Voting member of ASTM E12 and CIE Division 2
  • Professional member, Council of Optical Radiation Measurements (CORM) and the Inter-Society Color Council (ISCC)
  • SURF Students and Postdoctoral/Guest Researchers Mentor
  • EEO Collateral Counselor, 2019 – present
  • Chairman of ASTM E12.93 on Precision and Bias, 2004 – present
  • Current SIM Chair Committee on Photometry and Radiometry
  • Past President of Inter-Society Color Council
  • Past Board of Directors Inter-Society Color Council (ISCC)


Diffuse Visual Transmission Density

Clarence Zarobila, Robert E. Vest, Maria E. Nadal
This document, SP250-99 (2022), NIST Measurement Services: Diffuse Visual Transmission Density, describes the instrument used to measure diffuse visual

Recent research and development in photometry at NIST

Yuqin Zong, Maria Nadal, Benjamin K. Tsai, C Cameron Miller
Many developments were made in recent years in photometry at NIST for reducing measurement uncertainties, increasing calibration efficiencies, and adding

2018 National Institute of Standards and Technology Environmental Scan

Jason E. Boehm, Heather Evans, Ajitkumar Jillavenkatesa, Maria Nadal, Mark A. Przybocki, Paul Witherell, Rebecca A. Zangmeister
The 2018 National Institute of Standards and Technology Environmental Scan provide an analysis of the external factors that can influence NIST and the

NIST Measurement Services: Photometric Calibrations

Carl C. Miller, Maria E. Nadal, Benjamin K. Tsai, Yuqin Zong
The National Institute of Standards and Technology provides calibration services for submitted artifacts for luminous intensity, illuminance, color temperature
Created July 30, 2019, Updated September 7, 2022