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This Gas Industry Standard specifies requirements for the production of distribution pipe fittings cast in grey cast iron (grades 14, 17 and 20 as specified in BS EN 1561). They are intended for supply to the gas industry for use up to 7 bar maximum operating pressure.

This Gas Industry Standard specifies performance requirements and test methods for distribution pipe fittings, cast in ductile iron, for use up to 7 bar operating pressures. It covers fittings in the DN 40 to DN 600 size range and applies to fittings which are manufactured with socketed, flanged or spigot ends for jointing by means of various types of gaskets, which are not within the scope of this standard

This Gas Industry Standard specifies requirements for distribution split tee and collar pipe fittings cast in grey or ductile iron for use up to 7 bar maximum operating pressures. This standard does not specify wrap-around steel fittings.

Historically the gas industry in the UK has made use of a variety of cold applied tapes and tape systems for corrosion protection of areas such as field joints, tees, bends, valves and service fittings.

This Gas Industry Standard specifies requirements for buried steel pipes and components for the transmission and distribution of gas, at all pressure ranges, and specifies the procedures for the surface preparation and field applied external coatings that provide corrosion protection to buried pipework and all associated buried components.

This specification specifies fusion bonded epoxy powders and multi-component liquid materials for use as anti-corrosion coatings on steel line pipe and fittings (tees and bends) used for the transmission and distribution of natural or manufactured gas as defined in ISO 13623.

This Specification is a supplementary to ISO 21809-5 and applies to bare steel pipes for use in pipeline transportation systems for the transmission and distribution of natural gas as defined in ISO 13623.

This Standard gives guidance on the use of aluminium based light metals and paints in potentially hazardous areas. This Standard is applicable to Gas Transporter installations that are zoned in accordance with the requirements of IGEM/SR/25 and BS EN 60079. 

This Gas Industry Standard specifies requirements for Thermal Cut Off valves for use with natural gas at pressures of up to and including 75 mbar. The requirements are based on those set out in DIN 3586, Thermally Activated Shutting-Off Devices for Gas.

This Gas Industry Standard specifies requirements for excess flow valves for use with natural gas at pressures of up to and including 75 mbar and diameters of up to and including 50mm. The requirements are based on those set out in DIN 30652-1, Excess flow valves - Part 1: Excess flow valves for gas installation.

This Gas Industry Standard (GIS) specifies the requirements for gas filters of nominal sizes 80 mm and above suitable for use at ambient temperatures in the range –20 ºC to 60ºC and in the nominal pressure range: a) above 75 mbar and not exceeding 2 bar; b) above 2 bar and not exceeding 7 bar. It is for use by manufacturers and suppliers of gas filters.

This Gas Industry Standard specifies requirements for pressure-rated insulation joints of all sizes operating on natural gas at pressures not greater than 7 bar and normally in the temperature range -20 °C to 50 °C.

This Gas Industry Standard specifies the design, performance and material requirements for inflatable bags for use in the primary (iris supported) position of an iris stop system. Special requirements for bags larger than 36 in are specified in Annex A and test procedures are specified in Annexes B to F.

This Gas Industry Standard specifies performance requirements for combined drilling, tapping and service fitting insertion machines. They are intended primarily for the drilling and tapping of grey and ductile cast iron gas mains and steel pipe of a suitable wall thickness, and for the insertion of service connections into the tapped holes, at pressures up to 2 bar.

This Gas Industry Standard (GIS) specifies the design, performance and material requirements for inflatable stop bags for use in the secondary position of an iris stop system where a secondary support is used to support the bag.

This Gas Industry Standard defines the minimum performance and maintenance requirements for vehicle-mounted leakage survey equipment used for winter and trigger surveys (as defined in */PL/LC/18, Management procedure for Leakage Survey). Although this standard does not refer to any particular design of equipment, it is applicable to all vehicles and equipment used for winter and trigger surveys.

This Gas Industry Standard (GIS) specifies requirements for inflatable, self-centring bag stoppers. These bag stoppers are for use with the low pressure range of flow stopping equipment of the supported bag type for use on cast iron, ductile iron, steel and polyethylene (PE) pipes of a size up to and including 300 mm (12 in) nominal inside diameter, carrying natural or manufactured gas. Additional requirements are given for oil-resistant bags.

This Gas Industry Standard specifies requirements for polyethylene service line tracing equipment purchased or hired for use by the gas transporter.

This Gas Industry Standard (GIS) specifies requirements for polyethylene pipe coil trailers. It covers polyethylene pipe coil trailers capable of safely storing, transporting and dispensing pipe in the ranges from 63 mm to 180 mm diameter.