scope:

This is a new Standard which applies for any meter installation (or part thereof):

• supplying Natural Gas or LPG

• MOP < 7 bar

• with a volume not exceeding 1 m³

• having a method of temporarily sealing the outlet of the installation/section, for example a valve, blanking device, etc.

• not including polyethylene (PE) pipe or fittings

• which is not within scope of IGE/UP/1B.

This Standard applies for any meter installation:

• Supplying Natural Gas or LPG

• MOP ≤ 7 bar

• With a volume not exceeding 1 m³

• Having a method of temporarily sealing the outlet of the installation/section

• Not including polyethylene pipe or fitting

• Which is not within the scope of IGE/UP/1B

It covers pneumatic strength and tightness testing, along with direct purging. It covers testing in the following circumstances:

• Prior to a new installation being commissioned with gas

• Where a leak is suspected to exist on an existing installation

• Where a new section has been added into an existing installation

• Where there has been a complete loss of pressure, for any reason.

It covers direct purging in the following situations:

• New installation

• Alteration to, replacement of, or re-use of, an existing installation

• Where there has been a complete loss of pressure for any reason

• Where there is the possibility of air being present in an installation

• Where an installation is to be taken temporarily or permanently out of service

IGEM/UP/1C recommends that if an installation is within scope of IGE/UP/1B then IGE/UP/1B should be used. This applies whether or not there is a means of isolation on the outlet.

IGEM/UP/1C is most useful for those meter installations that have a means of isolation on the outlet, are out of scope of IGE/UP/1B and where there is no desire to test the installation pipework downstream of the meter installation.

In the main IGEM/UP/1C is aimed at those who undertake meter installation/replacement work e.g Meter Asset Managers.