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U.S. Department of Energy
Office of Scientific and Technical Information

pH Meter probe assembly

Patent ·
OSTI ID:7151998
An assembly for mounting a pH probe in a flowing solution, such as a sanitary sewer line, which prevents the sensitive glass portion of the probe from becoming coated with grease, oil, and other contaminants, whereby the probe gives reliable pH indication over an extended period of time. The pH probe assembly utilizes a special filter media and a timed back-rinse feature for flushing clear surface contaminants of the filter. The flushing liquid is of a known pH and is utilized to check performance of the probe. 1 fig.
DOE Contract Number:
AC03-76SF00515
Assignee:
Dept. of Energy, Washington, DC (United States)
Patent Number(s):
US 4415858; A
Application Number:
PPN: US 6-273154
OSTI ID:
7151998
Country of Publication:
United States
Language:
English