Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...
Patent
1998-05-18
2000-02-22
Warden, Jill
Cleaning and liquid contact with solids
Processes
For metallic, siliceous, or calcareous basework, including...
510163, C03C 2300, C11D 6506
Patent
active
060275707
ABSTRACT:
Disclosed is a method for cleaning optical surfaces, such as those in a urine analyzer, which surfaces come into repeated contact with urine test samples. The method involves contacting the optical surfaces with an aqueous solution of a quaternary ammonium or phosphonium salt, a non-ionic surfactant and a divalent ion.
Albarella James P.
Bloczynski Michael L.
Farr Jennifer
Bayer Corporation
Jeffers Jerome L.
Warden Jill
Wilkins Yolanda E.
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