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CNG inspection

2-9 System gastightness

Reasons for rejection

Condition and performance

1. With maximum pressure in the system and all pipe connections and valves tested for leaks (with valves in both open and closed positions), a leak is indicated (Note 1).

Note 1

AS/NZS 2739: 2003, Appendix 2 describes leak detection methods.

Summary of legislation

Applicable legislation
Condition and performance

1. Pipe and component connections must be gastight with manual valves in both open and closed positions.