Record Display for the EPA National Library Catalog


Main Title Evaluation of calcium sensors in fresh- and saltwater /
Author Ward, Gary K.
CORP Author National Ocean Survey, Rockville, MD. Test and Evaluation Lab.;Environmental Protection Agency, Washington, DC. Office of Energy, Minerals and Industry.
Publisher National Oceanic and Atmospheric Administration, National Ocean Survey, Test and Evaluation Laboratory ; U.S. Environmental Protection Agency, Office of Energy, Minerals, and Industry ; National Technical Information Service [distributor],
Year Published 1979
Report Number EPA-600/7-79-058
Stock Number PB-299 332
OCLC Number 05866035
Subjects Saline water conversion--Analysis--Instruments ; Water quality--United States--Measurement ; Electrodes, Ion selective ; Water quality--Measurement
Additional Subjects Water analysis ; Laboratory equipment ; Calcium ; Sensors ; Performance evaluation ; Fresh water ; Sea water ; Electrodes ; Concentration(Composition) ; Chemical analysis ; Surface water ; Salinity ; Calibrating ; Design ; Ion selective electrodes ; Procedures
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-7-79-058 Headquarters Library/Washington,DC 11/15/2012
EJBD  EPA 600-7-79-058 c.1 Headquarters Library/Washington,DC 06/25/2013
EKCD  EPA-600/7-79-058 CEMM/GEMMD Library/Gulf Breeze,FL 08/21/2018
ELBD RPS EPA 600-7-79-058 repository copy AWBERC Library/Cincinnati,OH 08/26/2019
ESAD  EPA 600-7-79-058 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-299 332 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation ix, 27 pages : illustrations ; 27 cm.
The Orion Calcium Ion Electrode No. 93-20 was evaluated for suitability as a calcium ion sensor for monitoring or in-situ marine applications by testing for the following parameters: accuracy, precision, temperature dependence, short- and long-term stability, durability, sensitivity to fluctuations in light intensity and flow conditions, response time as a function of temperature and concentration, and variability between modules. The tests were performed at 10 degrees C and 25 degrees C in freshwater, synthetic seawater, and natural waters (35-, 20- and 5ppt salinity). A description of the sensor, theory of operation, and a summary of the test results are included.
"March 1979." Includes bibliographical references. "Interagency agreement no. D5-E693, project no. EAP-78-BEA, program element no. 1 NE 625C."