Technical - General Series Standards

• IGEM/G/1 - Defining the end of the network

  • provides a framework and standard approach or new gas distribution mains, services, primary meter installations and installation pipework and include:
    • definitions for the end of the gas network, the primary meter installation (including any associated regulator) and installation pipework
    • illustrations of a range of recommended arrangements and those which, for historical reasons, are not recommended with respect to their design or layout and are "legacy" arrangements
    • identification of boundaries and interfaces.
  • is applicable to all Natural Gas systems and defines the boundaries and interfaces between the end of the Network, a primary meter installation and installation pipework and, in addition, provides a definition of recommended gas supply arrangements which will simplify any new arrangements that are required to ensure a safe and secure supply of gas to a consumer.

  View the full Standard for free on the IGEM Website or alternatively Hard copies can be purchased from our Shop.

• IGEM/G/4 - Definitions for the gas industry

  • provides definitions of terms used in Institution of Gas Engineers and Managers (IGEM) Standards.
  • recognises inconsistency between definitions within IGEM Standards issued up to September 2009 due to the time period over which those Standards were developed. It attempts to consolidate the varied use of different terms across IGEM Standards, to provide a base for their future amendment and to represent current best practice.
  • definitions contained within such an IGEM Standard published prior to 1^st September 2009 may continue to be used until such time as that Standard is made obsolete. Where an IGEM Standard published on or after 1^st September 2009 does not contain definitions, this Standard applies.

  View the full Standard for free on the IGEM Website.

• IGE/G/5 - Gas in flats

  • provides essential guidance for, architects, designers, transporters, suppliers, meter asset managers and installers, but does not address those designs that generally may result in difficulty or the responsible party to manage and maintain an asset in safe working order
  • links together the disparate requirements contained in such as the Gas Safety (Installation and Use) Regulations, HS(L)56, the Building Regulations, BS 6400 and IGEM/GM/6 (meters), BS 6891 and IGEM/UP/2  (installation pipework) and IGE/TD/3 and IGE/TD/4 (Network pipelines).
  • clarifies certain requirements that, previously, had been interpreted in differing ways, for example positioning of meters
  • identifies other relevant standards such as the appliance installation standards and IGE/UP/7 for timber-framed buildings.
  • identifies those gas supply designs that are most readily adopted and those that are acceptable but which need more careful consideration of factors that may influence the overall safety of the installation throughout its life.

  View the full Introduction and Scope in the Shop. 

• IGEM/G/6 - Gas supplies to mobile dwellings

  • provides additional requirements to and interpretation and clarification of national/international legislation, standards and codes of practice (without duplicating or replacing them)
  • gives best practice on distributing, metering and installing Natural Gas and LPG (it includes cylinder and bulk storage of LPG)
  • details legislation, Codes of Practice and health and safety legislation and other requirements, including those that apply to owners and operators of gas plant.

  View the full Introduction and Scope in the Shop. 

• IGEM/G/8 - Handling, transporting and storing PE pipes and fittings

  • covers the handling, transport and storage of PE pipe (coils, on drums, straight lengths supplied individually or as bundled packs).
  • highlights precautions to control PE pipe products being delivered, off-loaded and stored safely at customers' sites. The underlying theme is that PE pipe products be treated with a similar level of caution as perceived heavier steel pipe products and be unloaded in a controlled manner.

  View the full Introduction and Scope in the Shop.