UL-567:2014 pdf free download – STANDARD FOR SAFETY Emergency Breakaway Fittings, Swivel Connectors and Pipe-Connection Fittings for Petroleum Products and LP-Gas.
11.6 Three samples of an emergency breakaway fitting, as received initially are to be subjected to this test. Two of the samples, after having been subjected to the Abuse Test, Section 16, are to be rechecked for continuity during the External Leakage Test, Section 12, also while connected to a source of liquid or aerostatic pressure as stated in 10.2 or 10.3. For vapor recovery samples, only the liquid path is to be pressurized for this test.
11.7 If an emergency breakaway fitting incorporates a swivel mechanism, an additional sample is to be subjected to this test. The same sample, after having been subjected to the Operation Test, Section 14, is to be rechecked for continuity during the External Leakage Test, Section 12, also while under the pressure of the test liquid. During this test, the fitting is to be rotated at least one complete turn or to extremes of the swivel travel to determine any points of maximum resistance.
11.8 If an emergency breakaway fitting is of the reconnectable type, three additional samples are to be subjected to this test. The same three samples are to be rechecked for continuity during the External Leakage Test, Section 12, under the pressure of the test liquid. One of the samples, after having been subjected to the Endurance Test, Section 15, and the remaining two samples after having been subjected to the Drop Test, Section 17, are to be rechecked for continuity during the recheck external leakage test also while connected to a source of liquid or aerostatic pressure as stated in 10.2 or 10.3.
12 External Leakage Test
12.1 A connector or a fitting shall not leak when subjected to an appropriate liquid or aerostatic pressure of 1-1/2 times its maximum design pressure when tested as described below. Vapor confining components are subjected to an aerostatic pressure of 3/4 psig. See 10.2 and 10.3.
12.2 A swivel connector shall comply with 12.1 before and after having been subjected to the Operation Test, Section 14, and the Abuse Test, Section 16.
12.3 An emergency breakaway fitting shall comply with 12.1 before and after having been subjected to the Abuse Test, Section 16.
12.4 An emergency breakaway fitting of the reconnectable type, shall also comply with 12.1 before and after having been subjected to the Endurance Test, Section 15. An emergency breakaway fitting of the reconnectable type shall also comply with 12.1 before and after having been subjected to the Drop Test, Section 17.
12.5 An emergency breakaway fitting which incorporates a swivel mechanism, shall comply with 12.1 before and after having been subjected to the Operation Test, Section 14.
12.6 The samples of swivel connectors, emergency breakaway fittings or pipe-connecting fittings, when subjected to the Electrical-Continuity Test, Section 11, are to be used. Otherwise, samples are to be prepared as described in 11.3 and 11.5. Connections are to be made using the torque values indicated in Table 8.2.
12.7 Each test sample is to be connected to a source of liquid or aerostatic pressure, and the opposite end is to be closed. A positive shutoff valve, and a pressure indicating device, as described in 3.8, is to be installed in the pressure supply piping. The pressure indicating device is to be installed between the shutoff valve and the test sample. In the case of swivel connectors or emergency breakaway fitings designed for handling LP-Gas, the test sample is to be treated with a leak detecting solution or immersed in water to assist in detecting leaks.