US PATENT SUBCLASS 374 / 31
CALORIMETRY

Current as of: June, 1999
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374 /   HD   THERMAL MEASURING AND TESTING

31CALORIMETRY {6}
32  DF  .~> Total radiant energy or power measurement
33  DF  .~> With control of heat added to or lost from a sample container (e.g., isothermal calorimetry) {1}
35  DF  .~> Heat absorbing heigh temperature gas probe (e.g., enthalpy or fluid cooled probe)
36  DF  .~> Heat value of combustion (e.g., 'calorific value') {2}
39  DF  .~> Gain or loss of heat by heat utilizing load in path of heat exchange fluid {1}
42  DF  .~> Throttling calorimeter (e.g., steam quality)

DEFINITION

Classification: 374/31

CALORIMETRY:

(under the class definition) Subject matter for determining a quantity of heat energy produced or absorbed at a given location.

(1) Note. Calorimetric determination of the amount of constituent in a compound or of the heat of chemical combination is classified herein only when limited to a determination of heat produced by combustion of the specimen.

SEE OR SEARCH THIS CLASS, SUBCLASS:

10+, for calorimetric determination used in differential thermal analysis.

29, for measuring heat flow.

SEE OR SEARCH CLASS

23, Chemistry: Physical Processes,

230, and 232 for processes involving heat measurement of a catalytic element, or with steps involving a chemical reaction other than combustion.

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,

51, for apparatus for heat measurement of a catalytic element, or with an arrangement involving a chemical reaction other than combustion.