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An endorsement issued by a flag state administration to a certificate of competency of a ship’s officer allowing service on dangerous cargo carriers such as oil tankers, chemical carriers, or gas carriers.
Depending on the position and degree of personal responsibility, the following types of evidence are determined: tankerman - minimal responsibility, assistant - personnel directly involved in cargo operations, responsible person - personnel directly responsible for cargo operations and compliance with safety measures during cargo handling.

Related Terms

ALKALINE BOIL-OUT

Employed to remove oil and grease deposits from heating surfaces.

BULK CARGO

Cargo such as oil, coal, ore, woodchips, etc. not shipped in bags or containers

BULK CARGO

Cargo such as oil, coal, ore, woodchips, etc. not shipped in bags or containers

BUBBLE POINT

The differential gas pressure at which the first steady stream of gas bubbles is emitted from a wetted filter element under specified test conditions.

OILING SPLASH SYSTEM

Method of lubricating moving parts by agitating or splashing oil in the crankcase.

TRAMP FREIGHTER

A cargo ship engaged in the tramp trade.

ARC

A flash, caused by an electric current ionizing a gas or vapor.

EMULSIFIER

Additive that promotes the formation of a stable mixture, or emulsion, of oil and water. Common emulsifiers are: metallic soaps, certain animal and vegetable oils, and various polar compounds.

CLOUD POINT

The temperature at which waxy crystals in an oil or fuel form a cloudy appearance.

CORROSION INHIBITOR

Additive for protecting lubricated metal surfaces against chemical attack by water or other contaminants. There are several types of corrosion inhibitors. Polar compounds wet the metal surface preferentially, protecting it with a film of oil. Other compounds may absorb water by incorporating it in a water-in-oil emulsion so that only the oil touches the metal surface. Another type of corrosion inhibitor combines chemically with the metal to present a non- reactive surface.
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