CSA 6.10:2015 pdf download.Connectors for gas appliances
An air pressure equivalent to 3 Ib/in2 (20.7 kPa) shall be maintained in the system while the tubing is rotated 90 degrees (1.57 rad) at the lower fitting, in a plane perpendicular to the axis of the tubing, and then returned to the original position and rotated 90 degrees (1.57 rad) in the opposite direction. Each 90 degree (1.57 rad) twist and subsequent return to the original position shall be counted as one cycle,and the twisting motion shall be applied uniformly at a rate of 5 cycles per minute. The connector shall not leak. This test shall be applied to each nominal diameter, type, and material of connector submitted.
The union shall be tightened by the application of a torque not to exceed the minimum torque specified in Table 6, Applied torque during reconnection of fitting test. The connector shall then be tested as described in Clause 5.2, Leakage. If the connector leaks, the torque shall be increased sufficiently to overcome the leakage, but shall not be increased in excess of the maximum torque specified in Table 6.
There shall be no leakage in excess of that specified in Clause 5.2 after the union is tightened as specified in this paragraph.
A split section of rigid pipe, clamped together to obtain a snug fit over the connector, with edges rounded at the ends, shall then be snugly fitted over the tubing with its nearest edge a distance from the top of the fitting equal to the internal diameter of the tubing. This pipe shall be used as a handle to deflect the tubing at the fitting 60 degrees (1.05 rad) in one direction from the center line of the fitting.
The tubing shall then be returned to its original position, deflected 60 degrees (1.05 rad) in the opposite direction, and again returned to its original position. The test for leakage shall again be applied as outlined above. There shall be no leakage in excess of that specified in Clause 5.2, Leakage.The union shall then be disconnected, the tubing rotated 55 degrees (0.96 rad) in a clockwise direction,and the union again assembled to the fitting and tightened by the application of a torque not to exceed the torque determined to be necessary to overcome leakage in the previous connection. Leakage tests shall again be applied as outlined above. If no leakage occurs, or if leakage is observed and can be overcome by an increase in torque not to exceed the maximum torque specified in Table 6, Applied torque during reconnection of fitting test, the tubing shall be deflected as described in the preceding paragraph after which leakage tests shall be applied as outlined above.CSA 6.10 pdf download.