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The building official is directed to periodically inspect, or cause to be inspected, all boilers, tanks, jacketed kettles, generators, or other apparatus used for generating or transmitting steam for power or using steam under pressure for power or using steam under pressure for heating or steaming purposes, and all other tanks, jacketed kettles, and reservoirs under pressure of any kind.
Where a hydrostatic pressure test is deemed necessary by the building official, the hydrostatic pressures used in such test may not exceed the maximum working pressure of the apparatus being tested by more than 50 percent and a careful external and internal examination of the apparatus must be made before administering the test. In all cases where a hydrostatic pressure test is used, an internal examination of such apparatus must be made after the test is administered.
All high-pressure boilers which have reached the age of 50 years must be subjected to a full internal and external inspection of rivets, welds, butt straps, shell and/or drums. Findings of such inspection will determine the allowable working pressure of the boiler.
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