Haw. Code R. § 6-77-192 - Pressure limiting and regulating stations: inspection and testing
Each pressure limiting station, relief device (except rupture discs), and pressure regulating station and its equipment must be subjected at intervals not exceeding fifteen months, but at least once each calendar year, to inspections and tests to determine that it is:
(1) In good mechanical condition;
(2) Adequate from the standpoint of capacity
and reliability of operation for the service in which it is employed;
(3) Set to function at the correct pressure;
and
(4) Properly installed and
protected from dirt, liquids, or other conditions that might prevent proper
operation.
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