DIN EN ISO 10619-2:2018

Rubber and plastics hoses and tubing - Measurement of flexibility and stiffness - Part 2: Bending tests at sub-ambient temperatures (ISO 10619-2:2017); German version EN ISO 10619-2:2018

This International Standard specifies two methods for measuring the stiffness and one method for determination of the flexibility of rubber or plastic hoses or tubing when they are bent to a specific radius at sub-ambient temperatures. Method A is suitable for non-collapsible hose with a nominal bore up to and including 25 mm. The method provides a means of measuring the stiffness of the hose when the temperature is reduced from a standard laboratory temperature. Method B is suitable for hoses and tubing up to 100 mm and provides a means of assessing the flexibility of the hose when bent around a mandrel at a specified sub-ambient temperature. It may also be used as a routine quality control test Method C is suitable for hose of 100 mm and above. The method provides a means of measuring the stiffness of the hose at sub ambient temperatures. This method is only suitable for hoses that have a helical wire.