The following standards are currently under review.
Safety (SR series)
Odorant systems for gas transmission and distribution
Purging operations for fuel gases in transmission, distribution and storage
Transmission and Distribution (TD series)
Polyethylene and steel gas services and service pipework
Pipework stress analysis for gas industry plant
Pressure regulating installations for natural gas, Liquefied Petroleum Gas (LPG) and LPG/air
Biomethane injection
Steel and polyethylene pipelines for biogas distribution
Utilisation (UP series)
Strength testing, tightness testing and direct purging of industrial and commercial gas installations
Strength testing, tightness testing and direct purging of small, low pressure industrial and commercial natural gas installations
Application of compressors to natural gas fuel systems
Application of natural gas and fuel oil systems to gas turbines and supplementary and auxiliary fired burners
Design for natural gas installations on industrial and commercial premises with respect to hazardous area classification and preparation of risk assessments
Shared chimney and flue systems for domestic gas appliances
Gas Measurement (GM series)
Flowmetering practices inlet pressure exceeding 38 bar and not exceeding 100 bar
Electronic gas volume conversion systems
Non-domestic meter installations
General (G series)
Definitions for the gas industry
Gas supplies in mobile dwellings
Legislation (GL series)
Planning of gas distribution systems of maximum operating pressure not exceeding 16 bar
