Apparatus and method for determining that equipment is clean

Details Apparatus and method for determining that equipment is clean Apparatus and method for determining that equipment is clean

1992-05-18

1995-03-07

Wieder, Kenneth A.

Electricity: measuring and testing

Electrolyte properties

Using a conductivity determining device

340603, 210 85, 134113, G01N 2706

Patent

active

053961781

ABSTRACT:
Apparatus and methods for determining that a piece of equipment, for example, used in the biotechnology or pharmaceutical industries, is clean are disclosed. The invention involves measuring the electrical conductivity of an aqueous liquid medium both before and after the medium is used to contact, e.g., rinse, the piece of equipment. The equipment is determined to be clean when these two measured electrical conductivities are substantially equal.

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