33 C.F.R. § 159.105 Shock test.
Title 33 - Navigation and Navigable Waters
The device, with liquid retention components, if any, filled with water to half of their volume, must be subjected to 1,000 vertical shocks that are ten times the force of gravity (10g) and have a duration of 20–25 milliseconds measured at the base of the half-sine shock envelope.
Title 33: Navigation and Navigable Waters
PART 159—MARINE SANITATION DEVICES
Subpart C—Design, Construction, and Testing
§ 159.105 Shock test.