Gas Infrastructure. CEN/TC 234 Pressure Definitions. Guideline Document1 Scope This Technical Report gives explanation on the pressure definitions used by the gas network operators with regard to the standards of CEN TC 234 "Gas Infrastructure". The European Standards of CEN TC 234 comprise the functional requirements in the field of gas infrastructure from the input of gas into the on shore transmission network up to the inlet connection of gas appliances, including transmission, distribution, storage, compression,

This Standard specifies the requirements applicable to the concept definition

It helps to protect any metal surface from corrosion

The whole series consists of the following parts:

This part of IEC 60721 presents fundamental properties

whether stepped or not

BS EN 60947-1:1998

Electrode material

A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races

It does not cover supplements (technical corrigenda and amendments)

Using agreed terminology

data protection and confidentiality principles have to beguaranteed according to the laws actually in force in the different CENmember countries

— steels for cold working