Full Description

This document specifies two methods for measuring the stiffness and one method for the determination of the flexibility of rubber and plastics hoses and tubing when they are bent to a specific radius at sub-ambient temperatures.

MethodA is suitable for non-collapsible rubber and plastics hoses and tubing with a bore of up to and including 25mm. This method provides a means of measuring the stiffness of the hose or tubing when the temperature is reduced from a standard laboratory temperature.

MethodB is suitable for rubber and plastics hoses and tubing with a bore of up to 100mm and provides a means of assessing the flexibility of the hose or tubing when bent around a mandrel at a specified sub-ambient temperature. It can also be used as a routine quality control test.

MethodC is suitable for rubber and plastics hoses and tubing with a bore of 100mm and greater. This method provides a means of measuring the stiffness of the hose and tubing at sub-ambient temperatures. This method is only suitable for hoses and tubing which are non-collapsible.