Shipping Vocab Flashcards
Aframax
A system of sizing and freight rate assessment used by the London Tanker Brokers Panel Ltd. known as AFRA (average freight rate assessment). It is used to determine the average cost per ton for various size vessels on a monthly basis. An Aframax-size vessel is in the range of 80,000-130,000 DWT, either crude or product carrier.
API
American Petroleum Institute
API Gravity
An arbitrary expression of the weight of a product created by the API. API gravity is equal to (141.5/SG@60deg Fahrenheit)-131.5
API Tables
Eleven volumes of tables developed by the API to derive the necessary information to perform a cargo calculation.
Arrival ballast or “clean” ballast
The term is traditionally used on crude carriers to describe seawater introduced into cargo tanks that have been crude-oil-washed and water-rinsed. When discharged to the harbor through an oil content monitor, this ballast should not produce a visible sheen. the oil content of such ballast must not exceed 15 ppm.
Ballast
Seawater introduced into compartments on a tank vessel for the return leg of a voyage to the loading port. It is the additional weight necessary to bring the vessel to a suitable draft and trim and to reduce stresses and improve stability.
Barrel (bbl)
Equivalent to 42 gallons
Barrel, gross
The volume of cargo at the observed temperature in the tank.
Barrel, net
The volume of cargo corrected to a standard temperature of 60 degrees.
Bellmouth
The terminal end of the bottom piping in each tank, through which the tank is loaded and discharged. It’s shape is usually flared to approximately 1.5 times the original pipe diameter.
Bending stress
The stresses resulting from a concentration of weight at a certain location in the hull (uneven load) as well as from the motion of the vessel in a heavy seaway. On a tank vessel bending stress is commonly referred to as a hogging or sagging condition.
Benzene
An aromatic hydrocarbon with the composition C6H6. It is a regulated cargo (refer to Title 46 CFR Part 197) that requires special handling and safety measures designed to minimize the risk of exposure to vessel personnel.
Blank (blind flange)
A solid steel disk or plate used to cover and seal the end of a pipeline such as the cargo manifold.
Boiling point
The temperature at which the vapor pressure of a substance is equal to atmospheric pressure.
Bph
Barrels per hour
Bpt
Barrels per ton
BS&W
Bottom sediment and water
Bursting pressure
A pressure rating typically assigned to cargo and vapor houses.
Butterworth
A brand name of tank cleaning equipment. it is a term commonly used to describe portable tank cleaning equipment and he process of water-washing (Butterworthing) tanks.
CFR
Code of Federal Regulations
Cloud point
The temperature at which wax and other solid substances begin to separate from the liquid when an oil is cooled under specified conditions.
Coatings
Protective paints or linings applied to the surfaces of a tank to extend the surface life of the steel. The use of coatings has been found to facilitate cleaning and reduce the quantity of scale in cargo tanks.
Cofferdam
A void or empty space used to physically separate the cargo and noncargo areas of a tank vessel.
COI
Certificate of inspection
Commingling
The blending of two or more petroleum products in a cargo tank or pipeline either intentionally or by accident.
Compatibility chart
A chart used to determine potential reactivity between different chemical cargoes or materials.
Containment boom
A floating barrier that surrounds a vessel during a cargo transfer or bunkering operation. It is designed to limit the movement of a spill should cargo/bunkers be accidentally discharged into the water.
Contamination
The presence of unacceptable quantities of solid residues, rust, water, previous cargo, or together contaminant, resulting in a cargo that is off-specification.
Controlled venting
A method of venting the atmosphere of a cargo tank with the object of minimizing the accumulation of cargo vapors on deck and around the superstructure. Typical methods of venting include mast venting and the use of standpipes equipped with high-velocity vent valves.
COW
Crude-oil-washing. A fixed tank washing system employing the crude-oil cargo as the cleaning medium. This method of cleaning takes advantage of the solvent properties of crude oil to assist in the removal of oil clingage and deposits from the tank.
Cubic meter (when used to indicate cargo quantity)
Metric unit of volume measurement equal to 6.2898 bbls.
Cycle time
The length of time it takes a tank washing machine to move through all the angles within the tank during a wash. Reference to the manufacturer’s manual will give the time necessary for a particular tank cleaning machine.
Demurrage
Compensation from the charterer for time exceeding laytime.
Departure ballast
A term used on crude carriers to describe seater ballast introduced into cargo tanks that have been crude-oil-washed and stripped during the discharge operation.
Dip
The term that designates the depth of a liquid in a tank.
Displacement
The weight of water displaced by the hull; it is exactly equal to the weight of the vessel and its contents.
Displacement method
A method of atmosphere replacement utilized in the cargo tanks of an inerted tank vessel. Low-velocity entry of gas and minimal turbulence create a layered effect between the incoming and outgoing gases.
DOI
Declaration of inspection. A pretransfer checklist that must be completed by vessel and terminal personnel.
Double-hull construction
A method of vessel construction in which the cargo carrying compartments are separated from the sea by an inner and outer hull (two pieces of steel)
DWT
Dead weight tonnage. The amount of cargo, fuel, water, and stores a vessel can carry when fully loaded, expressed in either long tons or metric tons.
EEZ
Exclusive economic zone. The area extending 200 miles offshore of the United States.
Entry permit
A document issued by a responsible person prior to permitting the entry of personnel in to an enclosed space.
Epoxy
A special two-part resin or paint (hard coating) used to protect tank surfaces from salt-water corrosion and attack by certain aggressive chemical cargoes.
Explosimeter
Combustible-gas indicator
Fire point
The lowest temperature at which a liquid gives off sufficient vapors to support sustained combustion in the presence of an external source of ignition.
Fixed containment
A permanent trough or coaming under the manifold connections designed to collect any cargo spillage during the connecting and disconnecting of hoses or arms.
Flash point
The lowest temperature at which a liquid gives off sufficient vapors to form a flammable mixture with air in the presence of an external source of ignition. the vapors will ignite momentarily but are not capable of sustaining combustion.
Free surface
Refers to the free movement of liquid (such as cargo or ballast water) in a tank which has a negative effect on the stability of the vessel.
FWA
Free water allowance
Gas free
A tank or other enclosed space is considered gas free when sufficient fresh air has been introduced into the space to lower the level of flammable and toxic vapors and increase the oxygen level of a specific purpose.
Gas-freeing
The process of ventilating a space with air or prepare the pace for various operation such as entry, drydock, hot work, and so on. Before gas-freeing an inerted cargo tank, the operator must ensure the space has been properly purged of hydrocarbon vapors to prevent the creation of a flammable atmosphere.
Gauging, closed
A method of measuring the liquid level in a tank by means of a device, which penetrates the tank and does not result in the release of the atmosphere in the space. This device enables the operator to maintain a vapor-tight deck. Examples include float-type, electrical resistance, radar, pressure sensing, and magnetic probe.
Hog
Bending stress caused by the uneven distribution of weight on a vessel. A hog condition is created when there is a concentration of weight at the ends of the vessel; the deck is subjected to tension and the keel is under compression.
Hydrocarbon
Any compound made up of hydrogen and carbon exclusively.
Inert condition
An atmosphere is said to be in an inert condition when it is incapable of supporting combustion through oxygen deficiency. It consists of gas or a mixture of gases with an oxygen content of 8 percent or less by volume.
Inert gas
A gas or mixture of gases containing insufficient oxygen to support the combustion of hydrocarbons.
Inerting, primary
The process of gas replacement in which inert gas is introduced in to a space with the object of establishing an inert condition. Primary inerting is typically performed leaving the shipyard.
Innage
A measurement of the depth of liquid in a tank (the distance from the surface of the cargo to the bottom of the tank)
INTERTANKO
The International Association of Independent Tanker Owners
Laytime
The amount of time allowed fro cargo loading and discharge as specified by the charter party.
Lightering
The transfer of bulk liquid from the vessel to be lightered (VTBL) to a service vessel. Ligherting is usually necessary in areas where draft limitations or local regulations prevent the VTBL from proceeding directly to a dock.
Light ship
The weight of the empty ship. (Displacement of a vessel with no cargo, crew, stores, fuel, water, and ballast; usually expressed in long tons or metric tons)
Longitudinal bulkhead
Fore-and-aft bulkhead running the entire length of the cargo areas of the vessel. On a typical single-hull vessel, two of them are used to separate the cargo area into three distinct tanks athwartships: a center tank and a set of wing tanks.
Longitudinals
Numerous fore-and-aft framing members in the structure of a tanker.
LOT
Load-on-top. An operational technique devised by the tanker industry to retain oily/water mixtures on board in order to reduce sea pollution.
Manifold
The vessel/shore connection point on a tanker, usually located amidships. The manifold piping extends athwartships, thereby permitting the vessel to tie up with either side to the dock. Each manifold is equipped with its own valve frequently called a “header.”
OBO
Oil/bulk/ore carrier. Also called a combination carrier. A vessel specially constructed to carry various liquid and solid cargoes in bulk.
OBQ
Onboard quantity of cargo
Panamax
60,000-80,000 dwt
LR1
60,000-80,000 dwt
Handymax
32,000-42,000 dwt
MR
42,000-60,000 dwt
LR2
80,000-130,000 dwt
Suezmax
130,000-200,000 dwt
VLCC
200,000+ dwt
ULCC
320,000+ dwt
Pour point
The lowest temperature at which a liquid will remain a fluid
PIC
Person in charge. An individual possessing the proper USCG endorsement to control a cargo transfer involving dangerous liquids or liquefied gases on a tankship or barge.
ROB
Cargo (remaining on board) at the completion of the discharge operation.
Sag
Bending stress caused by the uneven distribution of weight on a vessel. A sag condition is created when there is a concentration of weight in the midsection of the vessel: the deck is subjected to compression and the keel is under tension. See also hog.
Segregated ballast system
A system on a tanker consisting of tanks, piping, and pumps used exclusively for ballast service. A segregated ballast system should not have any interconnection to the cargo system of the vessel.
SOLAS
International Convention for the Safety of Life at Sea
Sour crude oil
Any crude oil containing a significant amount of sulfur and sulfur compounds (hydrogen sulfide gas) which is characterized by the objectionable odor of rotten eggs.
Specific gravity
The ratio of the weight of a given volume of a substance at a standard temperature of 60 degrees Fahrenheit to the weight of an equal volume of freshwater.
SPM
Single-point mooring
Tanker
Any vessel designed to carry liquid cargo in bulk.
Ton, long
A unit weight: 2,240 pounds (1,016 kg)
Ton, metric
A unit of weight: 2,204 pounds (1,000 kg)
Ton, short
A unit of weight: 2,000 pounds (907 kg)
Topping off
The process of completing the loading of a cargo tank to a specified ullage. it is considered a critical operation in the transfer of cargo given the heightened potential for a spill. Under U.S. regulations, any critical operation requires the direct supervision of the PIC.
Topping up
The introduction of inert gas into a tank already in the inert condition with the object of raising the tank pressure to prevent the ingress of air.
TPI
Tons per inch immersion.
Transverse bulkhead
A solid bulkhead running in the athwartship direction usually separating cargo tanks.
Ullage
The measurement of free space above the liquid in a tank. it is the distance from the surface of the liquid in the tank to a reference datum on deck, normally the rim of the ullage opening in the hatch. Reference to the ullage calibration tables fro the vessel will give the volume of liquid in the tank (gross volume)
Ullage opening
Small opening in the tank hatch on deck that serves as the reference point for measurement of liquid (cargo) in the tank.
Vapor
A gas below its critical temperature.
Vetting
A term used to describe the inspection of a tank vessel under consideration for hire by a charterer
Viscosity
A measure of a liquid’s internal resistance to flow. It is useful when determining the pumpability of the cargo as well as the need to heat it.
VOC
Volatile organic compound
Volatility
The tendency of a liquid to vaporize.
VRP
Vessel response plan
VLPCs
Very large product carriers
AG
Arabian Gulf (also Persian Gulf)
A/R
Antwerp-Rotterdam range
AARA
Amsterdam-Antwerp-Rotterdam Area
ACP
African, Caribbean, Pacific countries
AH
Range of ports between and including Antwerp and Hamburg
AK
Alaska
ANTHAM
Antwerp-Hamburg range
APG
Arabian Persian Gulf
ARA
Antwerp-Rotterdam-Amsterdam range
ATL
Atlantic Ocean
AUSSIE
Australia
B/H
Bordeaux-Hamburg range
B/R
Bordeaux-Rouen
BA
Buenos Aires
BA/BB
Buenos Aires/ Bahia Blanca range
BENELUX
Belgium, the Netherlands, and Luxembourg
BLSEA
Baltic Sea
BSEA
Black Sea
C and/or J
China and/or Japan
CIS
Commonwealth of Independent States
CAR or CARIB
Caribbean Islands
CHINPO
China Sea, Indian and Pacific Oceans
CHN
China
COH
Cuba, Orinoco River and Haiti
CONT
Continent or Europe
EC
East Coast
EC
European Communities
ECGB
East coast of Great Britain
ECI
East coast of Ireland
ECIND
East coast of India
ECM
East coast of Medico
ECNA
East coast of North America
ECSA
East coast of South America
ECUK
East coast of United Kingdom
ECUS
East coast of USA
EEC
European Economic Community
EGY
Egypt
EI
East Indies
EMED
East Mediterranean
FEAST
Far East
FRISCO
San Francisco
G-H
Ghent-Hamburg range
GB
Great Britain
GIB
Gibraltar
GNS
German North Sea
GOM
Gulf of Mexico
HKG
Hong Kong
INDO
Indonesia
IOM
Isle of Man
IOR
Indian Ocean Region
JPN
Japan
KRS
Koreans
LA
Los Angeles
LAKES
Great Lakes
LB
Long beach (USA)
LND
London
LPL
Liverpool
MAA
Mina Al Ahmadi
MED
Mediterranean
MEG
Middle East Gult
MEX
Mexico
MSC
Manchester Ship Canal
N
North
N CONT
North Continent
n.E.
Not east of
n.N.
Not north of
n.W.
Not west of
n.S.
Not south of
N/A
North America or North Atlantic
NCSA
North Coast of South America
NCS
North Continental Shelf
NEOBIG
Not east of but including Greece
NG
Nigeria
NOLA
New Orleans