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['General Packaging Requirements - Hazmat']
['Cylinders - Hazmat']
06/23/2022
49 CFR 180 Appendix A Internal self-closing stop valve emergency closure test for liquefied compressed gases
1. In performing this test, all internal self-closing stop valves must be opened. Each emergency discharge control remote actuator (on-truck and off-truck) must be operated to ensure that each internal self-closing stop valve’s lever, piston, or other valve indicator has moved to the closed position.
2. On pump-actuated pressure differential internal valves, the three-way toggle valve handle or its cable attachment must be activated to verify that the toggle handle moves to the closed position.
[64 FR 28052, May 24, 1999, as amended at 67 FR 15744, Apr. 3, 2002]
['General Packaging Requirements - Hazmat']
['Cylinders - Hazmat']
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