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Paint and Coatings Industry Standards
ISO 4625-1:2004 ISO 4625-1:2004 Binders for paints and varnishes -- Determination of softening point -- Ring-and-ball method
Specifies a method of test for resins (including rosin) and similar materials by means of the ring-and-ball apparatus. In general, with materials of this type, softening does not take place at a definite temperature.
