---
kind: "section"
citation: "33 C.F.R. § 159.111"
title: "33"
number: "159.111"
heading: "Pressure and vacuum pulse test."
url: "https://uscodex.org/cfr/33/159.111"
---

# §159.111. Pressure and vacuum pulse test.


Liquid retention components of the device with manufacturer specified venting installed must be subjected to 50 fillings of water at a pressure head of 7 feet or the maximum pressure specified by the manufacturer for operation of the device, whichever is greater, and then emptied with a 45 gallon per minute or larger positive displacement pump that remains in operation 30 seconds after emptying the tank at the end of each cycle.


## Notes

### Authority

Authority: 33 U.S.C. 1322(b)(1); 49 CFR 1.45(b). Subpart E also issued under authority of sec. 1(a)(4), Pub. L. 106-554, 114 Stat. 2763; DHS Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: CGD 73-83, 40 FR 4624, Jan. 30, 1975, unless otherwise noted.