As per MARPOL, the rating to hazard to human health by oral intake of 5-50 mg/kg.

Related Terms

OCTANE NUMBER

A rating that indicates the tendency to knock when a fuel is used in a standard internal combustion engine under standard conditions; n-heptane is 0, isooctane is 100; different test methods yield other values variously known as research octane, motor octane, and road octane.

MERIT

A performance rating that governs the choice of a device for a particular application; it must be qualified to indicate type of rating, as in gain-bandwidth merit or signal-tonoise merit.

KNOCK RATING

Rating of gasolines according to knocking tendency.

INTERFERENCE TIME

Idle machine time repeating itself at regular or irregular intervals. intermittent rating See intermittent-duty rating.

HYDROCARBON BLENDING VALUE

Octane number rating for a 20% blend of a hydrocarbon with a 60:40 mixture of isooctane:n-heptane, which has been recalculated for a hypothetical 100% concentration of the tested hydrocarbon.

PUMPMAN

A rating that tends to the pumps of an oil tanker.

MIDDLE LATITUDE

The latitude at which the arc length of the parallel sepa- rating the meridians passing through two specific points is exactly equal to the departure in proceeding from one point to the other by middle-latitude sailing. Also called MID-LATITUDE.

RATED CAPACITY

The manufacturer's stated capacity rating for mechanical equipment, for instance, the maximum continuous capacity in pounds of steam per hour for which a boiler is designed.

RATING

1. In British usage, an enlisted member of a country's navy, i.e., all members of the navy who are not officers or warrant officers. 2. In contemporary US Navy and US Coast Guard usage, the occupational specialty of an enlisted member of the service.

BASIC DYNAMIC LOAD RATING

The calculated constant radial load (thrust load for thrust bearings) which a group of identical bearings with stationary outer rings can theoretically endure for rating life of 1 million revolutions of inner ring.

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