Historical
ISO 4625-1:2004
Binders for paints and varnishes - Determination of softening point - Part 1: Ring-and-ball method
ISO 4625-1:2004 specifies methods of determining the softening point of resins (including rosin) and similar materials by means of the ring-and-ball apparatus.
Both manual and automatic methods are specified.
International Organization for Standardization [iso]