This part of IEC 60695 specifies the ball pressure test as a method for evaluating the
softening temperature and accelerated material flow under load of polymeric materials and
parts of end products in their ability to resist abnormal heat. It is applicable to the materials
used in electrotechnical equipment, subassemblies and components, and to solid electrical
insulating materials except ceramics.
NOTE The Ball Pressure test method is not appropriate for certain elastomers, foamed materials, and other
materials that tend to be soft at room temperature. Product Committees are encouraged to evaluate these
materials using other methods such as IEC 60695-10-3.
This basic safety publication is intended for use by technical committees in the preparation of
standards in accordance with the principles laid down in IEC Guide 104 and
ISO/IEC Guide 51.
One of the responsibilities of a technical committee is, wherever applicable, to make use of
basic safety publications in the preparation of its publications. The requirements, test
methods or test conditions of this basic safety publication will not apply unless specifically
referred to or included in the relevant publications.