(under the class definition) Subject matter for determining in a group of discrete particles the size of individual particles or the average size of the particles in the group.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39+, for the size, numbers, or volume of blood particles not provided for elsewhere.
372+, for the measurement of articles or indefinite length materials by means of variation in visible light as affected by the articles or indefinite length materials.
432+, for light interference tests including diffraction patterns of microscopic bodies generally where the size of the discrete bodies is not involved.
439, for the number of particles in a gaseous suspension.
441+, for the number of particles in a liquid suspension.
SEE OR SEARCH CLASS 73, Measuring and Testing,
865.5, for miscellaneous measurement of the size of particles.
250, Radiant Energy,
222.1, for the sizing of discrete particles by methods involving visible and invisible light.
377, Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems,
10, for the size determination and the number of particles present in samples where the particles are numerically counted. See also the general note to the line between Class 377 and this class.
