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Search Publications by

Mr. James E. Norris (Fed)

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Displaying 1 - 9 of 9

Standard Reference Photometer for the Assay of Ozone in Calibration Atmospheres

October 12, 2021
R J. Paur, A M. Bass, James E. Norris, T J. Buckley
A photometric instrument for the assay of ozone from 0 ppbv to 1000 ppbv in calibration atmospheres as been designed, constructed, and evaluated. The absorption cross-section of ozone at 254 nm (HG line) is the major component of uncertainty of the

Comparison of primary laser spectroscopy and mass spectrometry methods for measuring mass concentration of gaseous elemental mercury

December 10, 2020
Abneesh Srivastava, Stephen E. Long, James E. Norris, Colleen E. Bryan Sallee, Jennifer Carney, Joseph Hodges
We present a direct comparison between two independent methods for the measurement of gaseous elemental mercury (GEM) mass concentration: isotope dilution cold-vapor inductively coupled plasma mass spectrometry (ID-CV-ICP-MS) and laser absorption

ASTM E2677: Web-based International Standard on Limit of Detection for Explosive Trace Detectors (and More) - Opioids and Ozone

February 12, 2019
R M. Verkouteren, Nathanael A. Heckert, Stefan D. Leigh, Edward R. Sisco, James E. Norris, Jeffrey A. Lawrence, Amber Burns
The performance characteristics of explosive and narcotic trace detectors are mission-critical to agencies worldwide that are charged with protection of the public, defense for mass transit and infrastructure, and the safety of first responders. Commercial

NIST Standards for Measurement, Instrument Calibration, and Quantification of Gaseous Atmospheric Species

March 2, 2018
George C. Rhoderick, Michael E. Kelley, Walter R. Miller Jr., James E. Norris, Jennifer Carney, Lyn Gameson, Christina Cecelski, Cassie Goodman, Abneesh Srivastava, Joseph Hodges
There are many gas species present in the atmosphere that are associated with the earth’s climate. These compounds absorb and emit radiation, a process which is the fundamental cause of the greenhouse effect. The major greenhouse gases in the earth’s