Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated - Copper alloy flanges1 Scope This European Standard specifies requirements for circular copper alloy flanges and copper alloy collars combined with loose steel plate flanges in PN designations from PN 6 to PN 40 and nominal sizes from DN 10 to DN 1800 in the types shown in Table 1. This standard also specifies dimensions and tolerances, materials and their associated pressure temperature (p T) ratings, flange facings and related surface finish, weld repairs, and marking,

chemical hazards

ring and gap gauges

supersedes BS 6651:1999 which will be withdrawn on 31 August 2008

This work of energy transfer is driven majorly by mechanical means

Materials used

and characteristics that can be selected from IEC 60115-1

thus making them available for re-use in ongoing and future work

or to be considered

This European Standard does not specify the test method for the air and vapour tightness testing of the vapour recovery systems at service stations

specification of the function

Other cleaning methods may exist

The SOURCE STRENGTH or the REFERENCE AIR-KERMA RATE of the RADIATION SOURCE used by the ME EQUIPMENT is known