scope:

This European Standard specifies the requirements for the design, manufacture and testing of bursting disc safety devices for cryogenic service i.e. for operation with cryogenic fluids below - 10°C in addition to operation at ambient temperature. It is a requirement of this standard that the bursting disc safety device(s) comply with prEN ISO 4126-1. In the event of different requirements, this standard takes precedence over that standard. This standard is restricted to bursting disc safety devices not exceeding a size of DN 100 designed to relieve single phase vapours or gases. A bursting disc assemply can be specified, constructed and tested such that it is suitable for use with more than one gas or with mixtures of gasses.