US PATENT SUBCLASS 210 / 743
.~.~ pH sensing


Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

600  DF  PROCESSES {14}
739  DF  .~ Including controlling process in response to a sensed condition {7}
743.~.~ pH sensing


DEFINITION

Classification: 210/743

pH Sensing:

(under subclass 739) Process in which the hydrogen (or hydronium) ion concentration is measured and used as a basis for response by the actuating means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

639, for a dialysis or osmosis process including a change in pH.

724, for a precipitating or flocculating process, including regulating pH.