US PATENT SUBCLASS 205 / 787.5
.~ For pH

Current as of: June, 1999
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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

775  DF  ELECTROLYTIC ANALYSIS OR TESTING (PROCESS AND ELECTROLYTE COMPOSITION) {19}
787.5.~ For pH

DEFINITION

Classification: 205/787.5

For pH:

(under subclass 775) Subject matter in which a material is analyzed or tested for the logarithm of the reciprocal of hydrogen (H) ion concentration.

SEE OR SEARCH CLASS

204, Chemistry: Electrical and Wave Energy,

433, for electrolytic apparatus used to measure carbon content or pH.