PROCESS OR COMPOSITION FOR STERILITY OR PACKAGE INTEGRITYTEST:
(under the class definition) Processes or compositions for determining the effectiveness of a prior sterilization process or the physical integrity or a package by means of a chemical reaction.
(1) Note. Processes classifiable in this subclass include monitoring the presence or absence of a sterilizing agent such as ethylene oxide.
SEE OR SEARCH CLASS
435, Chemistry: Molecular Biology and Microbiology,
11, for methods and materials for determining the effectiveness of a sterilization procedure which involves the use of an enzyme or microorganism.
516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting, appropriate subclasses for subject matter relating to: colloid systems (such as sols*, emulsions, dispersions, foams, aerosols, smokes, gels, or pastes) or
wetting agents (such as leveling, penetrating, or spreading); subcombination compositions of colloid systems containing at least an agent specialized and designed for or peculiar to use in making or stabilizing colloid systems; compositions and subcombination compositions specialized and designed for or peculiar to use in breaking (resolving) or inhibiting colloid systems; processes of making the compositions or systems of the class; processes of breaking (resolving) or inhibiting colloid systems; in each instance, when generically claimed or there is no art class. Class 516 provides for compositions otherwise seemingly proper for Class 436 when the compositions are colloid systems or wetting agents.
