The test should be carried out in a sheltered text site
in order to prevent any draught influencing the test.
Each pipe specimen should be completely filled with deaerated
water to exclude air bubbles.
The water temperature should not be less than 15°C at
the start and should be measured continuously during the test.
The water inside the sample should be stagnant and the pressure
maintained at 3 ± 0.5 bar during the test.