(under the class definition) Subject matter for the testing of coating materials (coverage, drying time, aging, weathering, etc., inks, printing and pen; adhesives and plastics) as to all qualities not provided for in preceding subclasses.
SEE OR SEARCH CLASS
250, Radiant Energy,
324+, for methods and apparatus for corona irradiation of materials, subclasses 432+ for the irradiation of contained, supported, or transported fluent material, subclasses 453.11+ for the irradiation of supported objects and subclass 493.1 for the irradiation of objects or materials generally.
374, Thermal Measuring and Testing,
7, for determining coating thickness by a thermal measurement.
