33 CFR § 159.103 - Vibration test.

---
identifier: "/us/cfr/t33/s159.103"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 159.103 - Vibration test."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "159.103"
section_name: "Vibration test."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "O"
subchapter_name: "POLLUTION"
part_number: "159"
part_name: "MARINE SANITATION DEVICES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
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."
regulatory_source: "CGD 73-83, 40 FR 4624, Jan. 30, 1975, unless otherwise noted."
cfr_part: "159"
---


# 159.103 Vibration test.

The device, with liquid retention components, if any, filled with water to one-half of their volume, must be subjected to a sinusoidal vibration for a period of 12 hours, 4 hours in each of the x, y, and z planes, at the resonant frequency of the device (or at 55 cycles per second if there is no resonant frequency between 10 to 60 hertz) and with a peak amplitude of 0.019 to 0.021 inches.