ISO 2930:2009 specifies a method for determining the plasticity retention index (PRI) of raw natural rubber.
The PRI is a measure of the resistance of raw natural rubber to thermal oxidation. A high resistance to thermal oxidation is shown as a high value of the index.
Status: WithdrawnPublication date: 2009-12
Edition: 4Number of pages: 7
Technical Committee: ISO/TC 45/SC 3 Raw materials (including latex) for use in the rubber industry