Over deze norm
|Commissie||Slangen en compensatoren|
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 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 with a bore 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 with a bore 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 and are non collapsible.
|Nederlandse titel||Rubber- en kunststofslangen - Meting van buigzaamheid en stijfheid - Deel 2: Buigproeven bij temperaturen onder de omgevingstemperatuur|
|Engelse titel||Rubber and plastics hoses and tubing - Measurement of flexibility and stiffness - Part 2: Bending tests at sub-ambient temperatures|