जलापूर्ति

6.10.5 Pressure Testing

The method which is commonly in use is filling the pipe with water, takeing care to evacutae any entrapped air and slowly raising the system to appropriate test pressure. The pressure testing may be followed as in 6.4.4.2.

After the specified test time has elapsed, usually one hour, measured quantity of water is pumped into the line to bring it to the original test pressure, if there has been loss of pressure during the test. The pipe shall be judged to have passed the test satisfactorily if the quantity of water required to restore the test pressure of 30 m for 24 hours does not exceed 1.5 liters per 10 mm of nominal bore for a lenght of 1 Km.

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