Publication Details

[G-19.1] Standard for Natural Gas Supply Systems


Title Standard for Natural Gas Supply Systems
Edition 1
Published July, 2018
Status Available to the public
Size 58 pages
Publisher CGA
Special Attributes
Committee Natural Gas Technology


This publication is intended to cover the design, installation, maintenance and removal of liquefied natural gas (LNG) and compressed natural gas (CNG) systems. It is expected that the reader has a basic understanding of pressure vessel and piping design or operations. This publication is not intended to cover pipeline gas equipment.

This publication provides general information concerning systems that store and supply natural gas in its liquid state, gaseous state, or both. It provides direction for site selection and system considerations, regulatory compliance, selection and installation of equipment, startup, operation, and maintenance of the system.

This publication is not intended to provide information concerning the transportation or liquefaction of natural gas.

For information regarding health hazards and other general safety considerations, see CGA G-19, Guideline for Natural Gas Safe Handling and Operations.

Natural gas is a combination of several gases in differing concentrations. The guidelines contained in this publication assume that pipeline quality natural gas as defined in CGA G-19 is in use. This publication assumes a liquid natural gas density of 3.57 lb/gal (0.43 kg/L).


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