Started by Bob G, October 16, 2023, 10:15:09 AM
QuoteClause 6.22.2 - Before appliances are connected to a new piping and tubing system containing fittings or joints, a pressure test shall be applied using either air or an inert gas (e.g. nitrogen) in the following manner:(a) Appliance shut-off valves, meters, regulators and any component not rated for the test pressure being applied shall not be connected to the piping or tubing system under test.(b) The test pressure shall be measured by either a pressure gauge or equivalent device and, if a gauge is used, the minimum diameter shall be 3 in (75 mm) and the maximum range shall exceed the test pressure by at least 15% but not more than 300%. The pressure gauge or equivalent device shall be calibrated to read in increments of not more than either 2 psig (14 kPa) or 2% of the maximum dial reading of the pressure gauge, whichever is less.(c) A pressure recorder when used for this test shall have a maximum range and be calibrated to the requirements of sub-section (b).(d) The pressure and duration of the test shall be in accordance with Table 6.3.