scope:

Defines: - characteristics that suspension diaphragms shall achieve, togheter with applicable inspection and test methods to be carried out for verification;- approval procedure to be implemented by the customer;- guidelines for qualification of the product with specified requirements;- quality monitoring of diaphragms in manufacture;- supply requirements. Applies to suspension diaphragms designed to be fitted on railway vehicles and similar vehicles runnin on dedicated tracks with permanent guide systems, whatever the type of rail and the running surface.