Cancels and replaces the second edition (1981). 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 : 1995-06
Edition : 3
Technical Committee:Raw materials (including latex) for use in the rubber industry