AS 4621:2019

This Standard specifies the minimum safety and performance requirements for self-acting pressure regulators, installed independently or as part of a combination control, which are used to reduce the pressure of vapour phase liquefied petroleum gases to the maximum outlet pressures specified in Clause 1.4.

This Standard specifies the minimum safety and performance requirements for self-acting pressure regulators, installed independently or as part of a combination control, which are used to reduce the pressure of vapour phase liquefied petroleum gases to the maximum outlet pressures specified in Clause 1.4.
NOTE Requirements for gas appliance regulators are published in AS 4618.
Where a device is designed to combine the functions of two or more components it shall conform with the Standard for each component.
NOTE Conformance of a regulator or combination gas control with these requirements does not imply that it is acceptable for use without supplemental tests on the regulator installed in its intended application.

Originated as AG 205-1979.
Revised as AG 205-1998.
Revised and redesignated as AS 4621-2004.
Second edition 2019. Originated as AG 205-1979. Revised as AG 205-1998. Revised and redesignated as AS 4621-2004. Second edition 2019. Originated as AG 205—1979. Revised as AG 205—1998. Revised and redesignated as AS 4621—2004. Second edition 2019. Reissued incorporating Amendment No.1 (March 2022). Originated as AG 205-1979. Revised as AG 205-1998. Revised and redesignated as AS 4621-2004. Second edition 2019. Reissued incorporating Amendment No 1 (March 2022). Reissued incorporating Amendment No 2 (March 2024)