46 CFR § 162.050-3 - Definitions.

---
identifier: "/us/cfr/t46/s162.050-3"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 162.050-3 - Definitions."
title_number: 46
title_name: "Shipping"
section_number: "162.050-3"
section_name: "Definitions."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "Q"
subchapter_name: "EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL"
part_number: "162"
part_name: "ENGINEERING EQUIPMENT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1321(j), 1903; 46 U.S.C. 3306, 3703, 4104, 4302; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation 00170.1, Revision No. 01.4."
cfr_part: "162"
---


# 162.050-3 Definitions.

As used in this subpart—

*15 ppm separator* means a separator that is designed to remove enough oil from an oil-water mixture to provide a resulting mixture that has an oil concentration of 15 ppm or less.

*Bilge alarm* means an instrument that is designed to measure the oil content of oily mixtures from machinery space bilges and fuel oil tanks that carry ballast and activate an alarm at a set concentration limit and record date, time, alarm status, and operating status of the 15 ppm separator.

*Independent laboratory* means a laboratory that—

(1) Has the equipment and procedures necessary to approve the electrical components described in §§ 162.050-21(b) and 162.050-25(c), or to conduct the test described in § 162.050-37(a); and

(2) Is not owned or controlled by a manufacturer, supplier, or vendor of separators, oil content meters, or bilge alarms.

*Oil content meter* or *meter* means a component of the oil discharge monitoring and control system that is designed to measure the oil content of cargo residues from cargo tanks and oily mixtures combined with these residues.

*PPM* means parts per million by volume of oil in water.

*Response time* means the time elapsed between an alteration in the sample being supplied to the bilge alarm and the ppm display showing the correct response.

[USCG-2004-18939, 74 FR 3382, Jan. 16, 2009]