This International Standard gives an overview of the different types of phenolic resin used in the manufacture of thermosetting plastics and a summary of available test methods. Clause 3 defines terms relating to the chemical structure of phenolic resins, their physical state and their degree of condensation and polycondensation. Clause 4 gives a summary of test methods. These methods apply to the determination of properties which are relevant to the production, processing and use of phenolic resins as described in clause 3. The user should select from the tests those that are appropriate for a particular application. For a given method, only the standard(s) listed may be used.