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ISO 13145:2023

M00004393

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ISO 13145:2023 Rubber - Determination of viscosity and stress relaxation using a rotorless sealed shear rheometer

standard by International Organization for Standardization, 08/01/2023

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Full Description

This document describes a method for the determination of the viscosity and stress relaxation of raw or compounded rubber under specified conditions.

The viscosity determination consists of a constant strain, temperature and frequency test in which the elastic and the loss components of the complex shear modulus can be determined.

The determination of stress relaxation consists of a constant static strain and temperature test in which the torque decrease can be determined.