Requirements and methods of test for pressure governors for use with gas appliances for nominal size up to and including DN 50. Does not cover governors connected directly to mains pipework or for installation out of doors and exposed to the environment.
BS EN 88:1991 history
2011BS EN 88-1:2011 Pressure regulators and associated safety devices for gas appliances. Pressure regulators for inlet pressures up to and including 50 kPa
2007BS EN 88-1:2007 Pressure regulators and associated safety devices for gas appliances - Pressure regulators for inlet pressures up to and including 500 mbar
1991BS EN 88:1991 Pressure governors for gas appliances for inlet pressures up to 200 mbar