Record Display for the EPA National Library Catalog


Main Title Evaluation of ozone calibration procedures /
Author Rehme, Kenneth A. ; Puzak, John C. ; Beard, Michael E. ; Smith, C. Frederick
Other Authors
Author Title of a Work
Rehme, Kenneth A.
CORP Author Environmental Monitoring Systems Lab., Research Triangle Park, NC. Quality Assurance Div.
Publisher U.S. Environmental Protection Agency, Research and Development, Environmental Monitoring Systems Laboratory,
Year Published 1980
Report Number EPA/600/4-80/050
Stock Number PB81-118911
Subjects Atmospheric ozone--Measurement
Additional Subjects Ozone ; Volumetric analysis ; Calibrating ; Chemical analysis ; Potassium iodides ; Performance evaluation ; Photometry ; Ultraviolet equipment ; Vapor phases ; Air pollution ; Gas analysis ; Air pollution detection ; Iodometry ; Procedures
Library Call Number Additional Info Location Last
NTIS  PB81-118911 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 227 pages : illustrations ; 28 cm
In October of 1976, the U.S. Environmental Protection Agency announced that the calibration procedure then currently in use for reference methods for the measurement of ozone in the atmosphere -- the neutral buffered potassium iodide procedure -- had been found variable and in some cases inaccurate and would be discarded. Four alternative calibration methods would be investigated as possible replacements: the ultraviolet photometry procedure, the gas phase titration with excess nitric oxide procedure, the gas phase titration with excess nitric oxide procedure, the gas phase titration with excess ozone procedure, and the boric acid-potassium iodide procedure. This publication summarizes the evaluation effort of the U.S. Environmental Protection Agency to select an alternative calibration procedure. Each method was subjected to a preliminary investigation to review the procedural descriptions and to assess the critical performance parameters. Variability studies were subsequently conducted to estimate the precision and accuracy of ozone calibrations using the four methods. The results of these studies were then compared. The ultraviolet photometry procedure was determined to be the most dependable and accurate and was designated the replacement procedure.
"November 1980." "EPA-600/4-80-050." "PB81-118911.' Microfiche.