Record Display for the EPA National Library Catalog


Main Title Investigation of the Orion Research Cyanide monitor /
Author O'Herron, Robert J.,
CORP Author National Environmental Research Center, Cincinnati, Ohio.
Publisher National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1975
Report Number EPA-670/4-75-005; EPA-ROAP-01AAD
Stock Number PB-241 802
OCLC Number 02006600
Subjects Cyanides ; Cyanide process
Additional Subjects Cyanides ; Monitors ; Metal complexes ; Performance evaluation ; Laboratory tests ; Field tests ; Industrial wastes ; Ion selective electrodes ; Water pollution detection
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 670-4-75-005 Headquarters Library/Washington,DC 05/20/2013
EJBD  EPA 670-4-75-005 Headquarters Library/Washington,DC 12/31/2014
ELBD  EPA 670-4-75-005 AWBERC Library/Cincinnati,OH 04/07/2022
NTIS  PB-241 802 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 25 pages : illustrations ; 27 cm
The model 1206 Orion Research cyanide monitor was investigated using the Orion specifications and environmental considerations as a guide. Laboratory tests under controlled environmental conditions showed the electronic stability (drift) to be within 0.1% over the temperature range of 5C to 35C. Sensor stability, over the temperature range 5C to 35C was tested by applying free cyanide ion (standard solutions of 1 mg/l and 10 mg/l) as direct input to the monitors. Dynamic on-stream measurements were made from a metal plating process rinse stream in a field installation of the monitor, and these measurements were periodically compared with those of the standard method for total cyanide. This field installation revealed the comparisons were widely variable. Steady-state comparisons were made of field-collected samples with the standard method for determining total cyanide. These tests revealed that a 15% to 20% loss in cyanide concentration resulted from the required straining and filtering of the sample input to the monitor.
"Program element no.1HA327." Includes bibliographical references (page 24).