Maritime Terms, Abbreviations and Acronyms

Not to count

Not to count, even if used

Not to count, unless used

Timber Charter Party

A cargo vessel arranged to carry nuclear fuel in flasks

A nuclear fuel carrier which is loaded and unloaded by way of a ro-ro ramp

The phenomenon of nuclear magnetic resonance (NMR) occurs when an appropriate radio frequency field is applied to a sample containing dipolar nuclei (e.g. protons in fat) placed in a strong d.c. magnetic field. Low resolution NMR spectrometry is used to measure the solid fat content of fat samples and the oil content of seeds. The NMR spectra of triglycerides exhibit characteristic peaks each, produced by protons of different character and, for structural analyses, high resolution NMR spectrometers are required.

Norwegian Veritas

Navigation and Vessel Inspection Circular (USCG publication)

Non-Vessel Operating Common Carrier

North West Europe

not west of but including

New York

A synthetic plastic material derived from benzene. Nylon can be used to form fibers, filaments, bristles, or sheets to be manufactured into yarn, fabric, and cordage; and it can be formed into moulded products. Nylon is tough, elastic and strong, and it has high resistance to wear, heat, and chemicals. It is generally known in the form of fine filaments in such articles as hosiery and sports equipment, e.g. parachutes; but its applications also include engineering plastics for cars, toys, healthcare products, carpets, roller-blade wheels, ship sails and parachutes.

New York Produce Exhange (charter party)

The New York Shipping Association

Ocean and rail

Ocean and Air

Over All

Owner’s option

Open account or On account of

On board

Ore Carrier or Open Charter or Overcharge

On Deck or Over Deck

Order notify

On Sale or Out of Stock or Out Standing

Outward

Over Age or Overall

On arrival at or of the port

Owners agents both ends

On arrival first sea pilot

Overage

On arrival harbour pilot station

Overall length (same as LOA)

Organisation of Arabic Petroleum Exporting Countries

Ore Bulk Oil Carrier-ship for transporting bulk cargo such as coal and grain, and high-density cargoes such as iron ore, as well as crude petroleum products

Oil-Bulk-Ore carriers. These versatile ships can transport cargoes as various as crude oil, grain, coal, and metal ore. They feature simply-shaped holds without exposed hull framework to permit easy cleaning between cargoes of different kinds. Certain OBO's, called PROBO's specialize in carrying oil products (vegetable and mineral) and soft bulk cargo. Efficient participation in the petroleum products trade requires these ships to have epoxy-coated holds. This provision aids thorough removal of a discharged cargo's traces before loading another. Unfortunately, epoxy cannot endure a great deal of physical abuse. So PROBO's cannot carry ore, coal, and other hard bulk cargoes.

On Board Quantity (before loading)

Oil Co-ordination Committee or Outward Clearance Certificate or On-Carriage Charges or Occupied

The occupational exposure is a standard term that concerns adult workers in good health, with a possible exposure of 8 hours per day, 5 days a week, 11 months per year. See exposure.

Olio Combustibile Denso (Fuel oil)

A contract for transportation between a shipper and a carrier. It also evidences receipt of the cargo by the carrier. A bill of lading shows ownership of the cargo and, if made negotiable, can be bought, sold or traded while the goods are in–transit.

A non-negotiable ocean bill of lading allows the buyer to receive the goods upon showing identification. If the bill is deemed negotiable, then the buyer will be required to pay the shipper for the products and meet any of the seller's other conditions. An ocean bill of lading allows the shipper to move goods across international waters. If the goods are to be initially shipped over land, an additional document, known as an "inland bill of lading", will be required. The inland bill only allows the materials to reach the shore, while the ocean bill allows them to be transported overseas.

Oil Companies International Marine Forum: An oil company consultative organisation, with a secretariat based in London, funded by the oil company members to represent the Oil Industry on marine safety, marine standards and international legislation. OCIM

See Overland Common Points.

For a gasoline engine to work efficiently, gasoline must burn smoothly without premature detonation, or knocking. Severe knocking can dissipate power output and even cause damage to the engine. When gasoline engines became more powerful in the 1920s, it was discovered that the most extreme knocking effect was produced by a fuel composed of pure normal heptane, while the least knocking effect was produced by pure isooctane. This discovery led to the development of the octane scale for defining gasoline quality.

A measure of a motor gasoline's or blendstock's resistance to preignition (knocking). The industry commonly uses two different indexes of this quality RON (research octane number), and MON (motor octane number). The USA employs an average of the two: (R+M)2.

Outside diameter

Oil discharge monitor

Oil Discharge Prevention and Contingency Plan

Operating Differential Subsidy: An amount of money the U.S. government paid U.S. shipping companies that qualify for this subsidy.The intent was to help offset the higher subsidy. The intent was to help ofset the higher cost of operating a U.S.–flag vessel.The ODS program is ad- ministered by the U.S. Maritime Administration and is being phased out.

Organisation for Economic Co-operation and Development

Swelling of a tissue due to excess accumulation of tissue fluid

Occupational Exposure Limit

A substance which is capable of simulating the biological effects of naturally occurring oestrogenic hormones

A chartering term indicating the time a chartered vessel is no longer attracting a daily fixture rate. It arises i.e. upon break down of machinery, equipment or when owing to poor performance such as slower speed than prescribed in the voyage charter, the

Segment of industry that deals with exploration and extraction of oil from undersea deposits.

A single or multi functional offshore support vessel

A vessel for the transportation of stores and goods to offshore platforms on an open stern deck and equipped with a towing facility

Offshore Floating Group

Offshore Hose Guidelines

One good safe berth

Off-hire

Office of History and Archaeology (ADNR)

Open hatch bulk carrier

Occupational Health and Safety Assessment Series - Provides standards to help a company control occupational health and safety hazards for staff.

The term refers to the amount of fatty material present in materials of animal and vegetable sources and food products, etc. To measure the oil content of a material it is usually necessary to prepare the sample by drying, grinding or digestion. The oil is then thoroughly extracted with solvent. The extract is filtered, the solvent removed and the oil is weighed.

A tanker for the bulk carriage of crude oil but also for carriage of refined oil products

A non propelled storage barge for dry cargoes

A tanker for the bulk carriage of refined petroleum products, either clean or dirty, which is not suitable for trading in open waters

OIL RECovery

Oils and fats are synonymous. However, the difference between them is that the former are liquid at ambient temperatures, while the latter are solid in appearance. Since ambient temperatures vary so much, a rigorous definition is not possible but, conventionally, a temperature of 20°C is often used as reference. Generally, the oils contain a higher proportion of unsaturated fatty acids in their composition than the fats.

The outer covering of oilseeds.

The product obtained by grinding the cake, chips or flakes which remain after removal of most of the oil from oilseeds. Oilseed meals are mainly a feedstuff for livestock and poultry. Some meals are also used as a raw material for producing edible vegetable protein products.

The procedure involved in removing oil from oilseeds. There are three basic types of processes - solvent extraction, mechanical processing and hydraulic pressing.

A sucrose fatty acid polyester used as a substitute for dietary fat which is not digested or absorbed by the body.

An ester or salt of oleic acid. Commonly referenced as a preparation containing oleic acid as the principal ingredient.

Olefins are aliphatic hydrocarbons with one or more double bonds along the chain. The lower olefins have short chains with only two, three or four carbons, and the simplest one is ethylene. The higher olefins have chains of up to 20 or more carbon atoms, and generally have the double bond between the first two carbons of the chain. These are termed the alpha olefins.

A straight or branched-chain hydrocarbon with at least one unsaturated carbon-carbon bond. The petrochemical industry's highest volume product, ethylene, belongs to this family of molecules. Cracking processes produce such molecules in considerable quantity. The "O" in PONA stands for olefins.

Olefins are petrochemical derivatives produced by cracking feedstocks from raw materials such as natural gas and crude oil. Lower olefins have short chains with only two, three or four carbon atoms, and the simplest one is ethylene. The higher olefins have chains of up to twenty or more carbon atoms. The main olefin products are ethylene, propylene, butadiene and C4 derivatives. They are used to produce plastics, as chemical intermediates, and, in some cases, as industrial solvents.

This monounsaturated acid is the most widely distributed of all fatty acids, found in practically every vegetable oil and animal fat. Rich sources are olive and peanut oils and palm olein. Oleic acid contains 18 carbon atoms and one double bond in the cis configuration. The classic route for making oleic acid and pressedtype stearic acids is to separate mixed fatty acids by crystallisation from either an organic solvent or a surfactant/water solution.

The triglyceride ester of oleic acid but in the palm oil industry it usually refers to the liquid fraction of the oil

This is the liquid, more unsaturated fraction separated from palm oil after crystallisation at a controlled temperature. The olein contains the lower melting point, more liquid triglycerides allowing it to be used for some applications for which the parent oil may not be suitable.

Oleochemicals are chemicals derived from biological fats or oils and are analogous to petrochemicals, which are chemicals derived from biological fats or oils and are analogous to petrochemicals, which are chemicals derived from petroleum. The hydrolysis of the triglycerides composing oils and fats produces fatty acids and glycerol. If oils or fats are made to react with an alcohol instead of with water, the process is alcoholysis and the products are fatty acid esters and glycerol. Other important oleochemicals include fatty alcohols, methyl or other esters, amides and amines, dimer acids and dibasic acids.

Olive oil is obtained from the flesh of the fruit of the olive tree (""Olea Europaea Sativa""). The cultivation of olives in the countries of the Mediterranean basin goes back several thousand years and it remains today a highly prized edible oil used in the unrefined state. It has a strong characteristic flavour and a yellow green colour. Olive oil and palm oil are the only fruit flesh oils in international trade. All other vegetable oils are seed oils.

Offshore Marine Committee

Offshore Maritime Operations Group

A notation on a bill of lading that cargo has been loaded on board a vessel. Used to satisfy the requirements of a letter of credit, in the absence of an express requirement to the contrary.

A notation on a bill of lading that the cargo has been stowed on the open deck of the ship.

Onwards

Oil/Ore (or Ore/Oil) Carrier or Order Of or Ocean/Ocean (movement)

Owner's option

Ore oil carrier

Officer of the Watch

Open Policy or Operator or Option

Oil Pollution Act; Owners Protecting Agent

The United States Oil Pollution Act 1990: The U.S. Federal Regulations concerning Oil Pollution Protection in US waters and off-shore economic exclusion areas. Requirements of the Act are contained in 33 CFR and 46 CFR .

Organization of Petroleum Exporting Countries. Includes Algeria, Indonesia, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, UAE and Venezuela.

A trade arrangement in which goods are shipped to a foreign buyer without guarantee of payment.

A non propelled open barge for the carriage of bulk cargoes