Abbreviations & Definitions
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B OR BM  Beam 
B TO B  Both to blame (collision clause) 
B.D.S.  Brokers daily statement 
B.H.(range)  Range of ports between and including Bordeaux & Hamburg 
B.O.  Broker's Order or Buyer's Option 
B.P.  Between Perpendiculars or Boiling Point 
B.S. & W.  Bottom (or base) sediment and water 
B/D  Below Deck 
B/D  Bar draught or Banker's draft or Barrels per day 
B/E  Break Even 
B/E  Bill of Exchange or Bill of Entry 
B/E or BENDS  Both ends 
B/F  Brought forward 
B/G  Bank Guarantee 
B/H  Bill of health 
B/H  Bordeaux/Hamburg range of ports or Barrels per hour 
B/L  Bale 
B/N  Booking note 
B/O  Bulk/oil carrier 
B/P  Bill payable or Brake power 
B/R  Bordeaux/Rouen or Bill Receivable 
B/S  Bill of Sale or Bill of Store or Boiler Survey 
B4  Before 
BA  British Admiralty or Buenos Aires or Bale (cap. of vessel) or Breathing apparatus or Bunker Surcharge 
BA/BB  Buenos Aires/Bahia Blanca Range 
BACAT  Barge aboard catamaran 
Back and Fill  A technique of tacking when the tide is with the ship but the wind is against it. 
Backhaul  A tanker's revenue-producing return voyage. Some ships shuttle between two tankers ports. They travel in one direction as dictated by normal oil flow patterns or refining system's needs. Often, they have no natural employment from when they discharge to their port of origin where another load awaits. They would like to find a cargo to pay their costs on this return trip. Otherwise, they must return in ballast. Charters often relet ships at bargain back haul rates for these voyages. They prefer some income to none. 
BACTAP  But As Close To As Possible 
BAF  Bunker Adjustment Factor 
Baking or Frying Fats (Shortening)  Baking or frying fats are products which meet all of the following conditions - a. manufactured from vegetable oils, meat fats or marine oils, singly or in combination; b. deodorised or hydrogenated and deodorised; c. containing a significant amount of glycerides solid at room temperature, and d. produced and sold entirely or primarily for baking or frying purposes. 
BAL  Balance 
Bale Capacity  Bale Capacity -cargo ship space 
Ballast  Water taken aboard a vessel to increase its draft, steady its motion, correct its trim, or otherwise make it more seaworthy when sailing without cargo. The trade uses this word to describe repositioning voyages or empty backhauls forced on ship. Hence, phrases appear like "ballasting Trans-Atlantic" 
Ballast Bonus  Special payment above the Chartering price when the ship has to sail a long way on ballast to reach the loading port. 
Balloon Freight  Light, bulky articles. 
BALTIME  Time charter party 
Bank Guarantee  Guarantee issued by a bank to a carrier to be used in lieu of lost or misplaced original negotiable bill of lading. 
Bareboat  Method of chartering of the ship leaving the charterer with almost all the responsibilities of the owner. 
Bareboat Charter   Bareboat Charter Owners lease a specific ship and control its technical management and commercial operations only 
Barge  A flatbottom boat for transporting freight that is generally unpowered and towed or pushed by other craft 
Barge Carrier  A cargo vessel arranged for the carriage of purpose built barges (lighters) loaded with cargo. Typically loading is by way of a gantry crane. Also known as Lighter Aboard SHip vessels (LASH) 
Barge Carrier, semi submersible  A barge carrier which is semi submersible for the float on loading/unloading of the barges 
Barge Carriers  Ships designed to carry barges; some are fitted to act as full container- ships and can carry a varying number of barges and containers at the same time. At pres- ent this class includes two types of vessels LASH and Sea-Bee. 
Barge lots  Quantities of petroleum product accommodated in the sizes of barges in common use in a particular area. This term usually applies to small (less than cargo-size) volumes of product intended for regional distribution. On the US Gulf Coast, for instance, petroleum products barges typically range from 10,000 to 50,000 barrels. On the Rhine, barges typically carry lots as large as 1,000 tons. 
BARRATRY  Fraudulent of Master/Crew against ship/cargo 
Barrel (BBL)   Common unit of measurement of liquids in the petroleum industry that equals 42 U.S. standard gallons or 35 imperial gallons. 
Base chemicals  A group of chemicals produced in bulk from raw materials such as oil, gas and coal. Other chemicals are derived from base chemicals 
Base Oils   See Lubricating Oils. 
Base Rate  A tariff term referring to ocean rate less accessorial charges, or simply the base tariff rate. 
Base stock  A hydrocarbon mixture which makes up much of the volume of a gasoline blend. Usually such stocks have properties not too far removed from finished fuel because the minor components have to bring the entire blend within accepted limits of gasoline quality. Base stocks in today's US motor gasoline include cat gasoline, reformate, and alkylate. 
BAT  Best Available Techniques. The EU Directive (96/61 EC) on Integrated Pollution Prevention and Control (IPPC) allows local authorities to grant environmental permits to process industries, including new and existing petrochemical and chemical installations. The final permit sets Emission Limit Values (ELVs) that are defined on the basis of the Best Available Techniques (BAT). These BATs are a reference point against which to judge the current performance of an existing installation or to judge a proposal for a new installation. They result from an exchange of information between the European Commission, member states, industry and NGOs.  
BB  Ballast bonus or Bar bound 
BB  Back to back or Breakbulk 
BB  Bareboat or Below bridges 
BB  Bulbous bow or Bill book 
BB  Bahia Blanca 
BB CGO  Break Bulk Cargo 
BBB  Before Breaking Bulk 
BBCD  Bareboat-cum-demise 
BBLS  Barrels 
BC  Bulk Carrier or British Columbia or British Channel 
BCH  Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk (IMO) 
BCI  Baltic Cape Index 
BCM  Bow to Center Manifold 
BCO  Beneficial Cargo Owner: Refers to the importer of record, who physically takes possession of cargo at destination and does not act as a third party in the movement of such goods. 
BCP  Border Crossing Point 
BCS  Because 
BD  Butadiene 
BD FT  Board foot (timber) 
BDI  Both dates (days) Included 
BDL  Bundle 
BDLE(/S)  Bundle(/s) 
BDR  Bunker Delivery Receipt: The purpose of the Bunker Delivery Receipt (BDR) is to record what has been transferred. Various factors are recorded including:

- Location and time of transfer
- Details of product delivered
- Temperature of product delivered
- Product density at standard reference temperature
- Sample seal numbers 
BE  Benzene or Both ends 
Beam  The breadth of a ship at its widest point 
Bear Down  To sail downwind rapidly towards another ship or landmark. 
BEAUFORT  A measure of wind speed 
BECU  Billion ECU 
Beer Tanker  A tanker for the bulk carriage of beer 
BEG  BEGinning 
BEH  Basis empty holds 
Belt Line  A switching railroad operating within a commercial area. 
BENDS  Boths Ends 
Beneficial Owner  The registered owner of a vessel who can charter the vessel out to others 
Beneficiary  – Entity to whom money is payable.
– The entity for whom a letter of credit is issued.
– The seller and the drawer of a draft. 
BENELUX  Belguim, the Netherlands and Luxembourg 
Benzene  Benzene is the simplest aromatic compound, with a ring of six carbon atoms and six hydrogen atoms. It is a colorless liquid occurring naturally in fossil raw materials such as crude oil and coal, produced during processing of petroleum liquids and through chemical reactions. It is one of the most important feedstocks for the chemical industry, used for the manufacture of a wide range of everyday items, and is not itself used directly by consumers.  
Benzene Ring  6 carbon atoms in the form of a ring structure with a hydrogen atom attached to each carbon and is the basic building block of all aromatic chemicals 
Berth  BERTH shall mean the specific place where the Vessel is to load or discharge and shall include, but not be limited to, any wharf, anchorage, offshore facility or other location used for that purpose. 
Berth Terms  Shipped under rate that includes cost from end of ship’s tackle at load port to end of ship’s tackle at discharge port. 
Between the Devil and the Deep Blue Sea  The devil seam was the curved seam in the deck planking closest to the side of the ship and next to the scupper gutters. If a sailor slipped on the deck, he could find himself between the devil and the deep blue sea. 
Bext  Breadth extreme 
Beyond  Used with reference to charges assessed for cargo movement past a line–haul terminating point. 
BFC  Baltimore form C (charter party) 
BFI  Baltic Freight Index 
BFO  Bunker fuel oil 
BGD  Bagged 
BH or BHD  Bulkhead 
BHF  Bulk harmless fertilizers 
BHP  Brake horse power 
BI  Both inclusive 
BIA  Best Information Available 
BIAC  Business and Industry Advisory Committee 
BIBO  Bulk in, bag out 
BIBO or "Bulk In, Bags Out"  Bulkers are equipped to bag cargo as it is unloaded. The CHL Innovator, shown in the photo, is a BIBO bulker. In one hour, this ship can unload 300 tons of bulk sugar and package it into 50 kg sacks. 
BIC  APPE Business Intelligence Committee. For more information, click here 
BIFA  British International Freight Association 
BIFFEX  Baltic International Freight Futures Exchange 
Bilateral  A contract term meaning both parties agree to provide something for the other. 
Bill of Exchange  In the United States, commonly known as a “Draft.” However, bill of exchange is the correct term. 
Bill of Lading (B/L)  A document that establishes the terms of a contract between a shipper and a transportation company. It serves as a document of title, a contract of carriage and a receipt for goods. 
Bill of Lading
Bill Of Lading: A legal document between the shipper of a particular good and the carrier detailing the type, quantity and destination of the good being carried. The bill of lading also serves as a receipt of shipment when the good is delivered to the predetermined destination. This document must accompany the shipped goods, no matter the form of transportation, and must be signed by an authorized representative from the carrier, shipper and receiver. Wikipedia definition 
Bill of Lading Port of Discharge  Port where cargo is discharged from means of transport. 
Bill of Sale  Confirms the transfer of ownership of certain goods to another person in return for money paid or loaned. 
Bill to Party  Customer designated as party paying for services. 
Billed Weight  The weight shown in a waybill and freight bill, i.e, the invoiced weight. 
BIMCO  Baltic & International Maritime Council. From 16 to 18 February 1905, 112 distinguished gentlemen assembled in Copenhagen and formed what is today the world’s largest and most diverse private shipping organisation. BIMCO has come a long way since then an 
Bioaccumulation  General term describing a process by which chemicals are taken up by aquatic organisms directly from water as well as through exposure through other routes, such as consumption of food or sediment containing the chemicals.  
Bioconcentration  A process by which there is a net accumulation of a chemical directly from water into aquatic organisms resulting from simultaneous uptake (e.g., by gill or epithelial tissue) and elimination.  
Bioconcentration factor  A term describing the degree to which a chemical can be concentrated in the tissues of an organism in the aquatic environment as a result of exposure to water-borne chemical. At steady state during the uptake phase of a bioconcentration test, the BCF is a value which is equal to the concentration of a chemical in one or more tissues of the exposed aquatic organisms divided by the average exposure water concentration of the chemical in the test. 
Biodegradation  The transformation of a material resulting from the complex enzymatic action of microorganisms (e.g., bacteria, fungi). It usually leads to disappearance of the parent structure and to the formation of smaller chemical species, some of which are used for cell anabolism. Although typically used with reference to microbial activity, it may also refer to general metabolic breakdown of a substance by any living organism. 
Biofuel  Biofuels are gas or liquid fuel (alcohols, ethers, esters, and other chemicals) made from plant material, agricultural and forestry residues, and a large portion of municipal solid and industrial waste. Biofuels include material as diverse as wood, wood waste, peat, wood sludge, agricultural waste, stray, sludge waste, municipal solid waste, landfill gases… Biofuels for transportation include bioethanol, biodiesel, biomethanol, and paralysis oils. 
Biomagnification  Result of the processes of bioconcentration and bioaccumulation by which tissue concentrations of bioaccumulated chemicals increase as the chemical passes up through two or more trophic levels. The term implies an efficient transfer of chemical food to consumer, so that residue concentrations increase systematically from one trophic level to the next.  
Biotechnology  The use of living organisms or other biological systems to develop food, drugs and other products. 
BISCO  British Iron and Steel Corporation 
Bitumen  Mineral pitch rich in asphaltenes and other complex, high-molecular-weight molecules. These mixtures of heavy hydrocarbons and resins form the base of, and impart adhesive, semi-solid consistency to asphalt cement and tar. 
Bitumen Tank Barge, non propelled  A non propelled tank barge for the carriage of bitumen/asphalt 
BK  Bank or Book or Backwardation or Bar keel 
BKRPT  Bankrupt 
BL  BaLe 
BLADING  Bill of lading or Bleeding (wing tanks) 
Blanket Bond  A bond covering a group of persons, articles or properties. 
Blanket Rate  – A rate applicable to or from a group of points.
– A special rate applicable to several different articles in a single shipment. 
Blanket Waybill  A waybill covering two or more consignments of freight. 
BLC  Bank Confirmation Letter : Bank letter confirming that the account holder has certain funds available. Mostly used to verify that a buyer has sufficient funds for a given transaction. 
BLDG  Building 
Bleaching  This is a process whereby coloured pigments, impurities, trace metals, gums and oxidised materials are removed from oils and fats by adsorptive cleansing using bleaching clays and/or activated carbons. Bleaching is carried out on highly degummed oils, or acid pre-treated oil in the case of oils of naturally low gum contents, when these are to be physically refined. With alkali refining this stage is incorporated after the alkali refining, prior to deodorisation. Bleaching of edible oils and fats is generally carried out under a vacuum at 70-120°C, with agitation for a pre-determined length of time. The bleaching earth is then removed by filtration. 
Bleaching Earth  Bleaching earths are montmorillonite clays which, in their natural state or after chemical or physical activation, have the capacity to adsorb colouring matters from oils. They are finely-crystalline silicates of aluminium and/or magnesium with variable amounts of lime, alkalis, iron and with a proportion of water of hydration. They are often subjected to various processes, mainly acid and heat treatment to enhance their adsorption capacity. When used with crude oils, they are capable of removing impurities, gums and coloured pigments present. 
Blender  someone or some organization which combines various components to produce motor gasoline. The term may accurately apply to refiners for they blend motor fuel from blendstock they produce or purchase. In many cases, however, the word designates gasoline makers who do not refine any crude oil and distinguishes them from the "refiners" who do. 
Blendstock  A component combined with other materials to produce a finished petroleum product. The term applies most frequently to motor gasoline ingredients. 
Blepharitis  Inflammation of the eyelids 
BLG  Bulk Liquids and Gases 
Blind Shipment  A B/L wherein the paying customer has contracted with the carrier that shipper or consignee infor- mation is not given. 
BLK  Bulk 
Block Stowage  Stowing cargo destined for a specific location close together to avoid unnecessary cargo movement. 
Blocked Trains  Railcars grouped in a train by destination so that segments (blocks) can be uncoupled and routed to different destinations as the train moves through various junctions. Eliminates the need to break up a train and sort individual railcars at each junction. 
Blocking or Bracing  Wood or metal supports to keep shipments in place to prevent cargo shifting. See also Dunnage. 
BLS  Bales or barrels 
BLSEA  Baltic Sea 
BLST  Ballast 
Blt  Built 
BLY  Barley 
BM  (Beam) breadth moulded or Board measurement 
BM  Ship Stability: Symbol for transverse metacentric radius; distance between B and M. 
BMF  Board measurement feet = 1' x 1' x 1'' 
BMM  British Marine Mutual 
BO  Bad Order or Branch Office 
BO or BOFFER  Best Offer 
BOA  Berthing on arrival 
Board  To gain access to a vessel. 
Board Feet  The basic unit of measurement for lumber. One board foot is equal to a one–inch board, 12 inches wide and 1 foot long. Thus, a board 10 feet long, 12 inches wide, and 1 inch thick contains 10 board feet. 
Boat  A relatively small, usually open craft/vessel a small, often open vessel for traveling on waterAn inland vessel of any size. 
BOB  Bunker on Board 
Bobtail  Movement of a tractor, without trailer, over the highway. 
BOC  Bulk Oil Carrier 
BOD  Board of Directors 
BOD APP  Board of directors approval 
BOFFER  Best Offer 
BOFFERS  Best offers 
Bogie  A set of wheels built specifically as rear wheels under the container. 
Boiling range  The temperature spread between the points where a material starts and finishes evaporating. This term has an abstract usage- naphtha-range, for example. It also has a specific one, such as "naphtha with a 140-350 F range." 
Bollard pull  The thrust developed at zero ahead speed. Bollard pull is the most commonly used measure of ship-assist tugs performance which have propellers optimized for maximum thrust at close to zero speed. 
Bolster  A device fitted on a chassis or railcar to hold and secure the container. 
Bond  Linkage between atoms which holds together molecules. The basic bond involves two atoms connected by a pair of shared electrons. A double bond requires linkage by two pairs (four electrons). A triple bond puts six electrons between two atoms. 
Bond Port  Port of initial Customs entry of a vessel to any country. Also known as First Port of Call. 
Bonded Freight  Freight moving under a bond to U.S. Customs or to the Internal Revenue Service, to be delivered only under stated conditions. 
Bonded Warehouse  A warehouse authorized by Customs authorities for storage of goods on which payment of duties is deferred until the goods are removed. 
Booby Hatch  Aboard ship, a booby hatch s a sliding cover or hatch that must be pushed away to allow access or passage. 
Booking  Arrangements with a carrier for the acceptance and carriage of freight; i.e., a space reservation. 
Booking Number  Reservation number used to secure equipment and act as a control number prior to completion of a B/L. 
Boom defence Vessel  A naval vessel for laying harbour defence booms 
BOR  Bunkers on Redelivery 
BORD.ARB.  Bordeaux arbitrary 
BORO  Bulk, Oil and roll-on, roll-off vessel 
BOSP  Beginning Of Sea Passage 
Bottom Side Rails  Structural members on the longitudinal sides of the base of the container. 
Bottom wash  Crude oil washing operations restricted to the lower parts of the tank bulkheads, internal structures and bottom of tanks. This can only be carried out by vessels equipped with programmable tank washing machines. 
Bottom–Air Delivery  A type of air circulation in a temperature control container. Air is pulled by a fan from the top of the container, passed through the evaporator coil for cooling, and then forced through the space under the load and up through the cargo. This type of airflow provides even temperatures. 
Bottoms  Unvaporized material drawn from the lowest point of a fractionation column. 
Bow  Forward most point of a ship. 
Bow Thruster  a device built into, or mounted to, the bow of a ship to make it more maneuverable. 
BOX  Term used for a container or boxed vessel 
Boxcar  A closed rail freight car. 
BP  Boiling Point 
BPA  Bisphenol A. An industrial chemical used to make polycarbonate plastic used for structural parts, impact-resistant glazing, street-light globes, household appliance parts, components of electrical/electronic devices, compact discs, automotive applications, reusable bottles, food and drink containers, and many other products. It is also used in the production of epoxy resins for coatings, food and beverage can linings, electrical laminates, composites and adhesives, and in other products. 
BPA Bisphenol-A  (4,4'-isopropylidenediphenol) An intermediate used in the production of epoxy, polycarbonate and phenolic resins. The name was coined after the condensation reaction by which it may be formed-two (bis) molecules of phenol with one of acetone (A). (Whittington's Dictionary of Plastics, published by Technomic Publishing) 
BPB  Bank post bill 
BPC  British Phosporous Commission 
BPG  International Chamber of Shipping Bridge Procedure Guide 
BPI  Baltic Panama Index 
BPQ  Barge Particulars Questionnaire 
BR  Boiler Room 
BR  Bulgarian Register of Shipping or Brazil or Builder's risk 
Br.ld.  Break load 
Break Bulk  – To unload and distribute a portion or all of the contents of a rail car, container, trailer, or ship.
– Loose, non–containerized mark and count cargo.
– Packaged cargo that is not containerized. 
Breakwater  Structures designed to provide shelter from waves and improve navigation conditions. Such structures may be combined with jetties where required (EM 1110-2-2904). 
BREF  BAT Reference Documents, prepared by a European IPPC Bureau in Seville, in which BATs are defined. See BAT. 
Brent  The most commonly traded North Sea crude oil. Technically, it is a mix of crude from the UK Brent field and the Ninian field. 
BRGDS  Best Regards 
Bridge Point  An inland location where cargo is received by the ocean carrier and then moved to a coastal port for loading. 
Bridge Port  A port where cargo is received by the ocean carrier and stuffed into containers but then moved to another coastal port to be waded on a vessel. 
Bright annealing  Annealing in inert gas or vacuum to minimize oxidation of the surface 
BRKR or BRKRS  Broker(s) 
BRKRS  Brokers 
BRM  Bridge Resources Management 
BROB  Bunkers Remaining on Board 
Broken Stowage  – The loss– The loss of space caused by irregularity in the shape of packages.
– Any void or empty space in a vessel or container not occupied by cargo.
of space caused by irregularity in the shape of packages. 
Broker  A person who arranges for transportation of loads for a percentage of the revenue from the load. 
Brokerage  Freight forwarder/broker compensation as specified by ocean tariff or contract. 
Bromine number  A measure of the olefins content of a hydrocarbon mixture. In the petroleum intermediates trade, it serves primarily to indicate the presence of cracked stock in a cargo or stream. California air pollution laws also make it an important specification for motor gasoline and blendstocks offered in Los Angeles. As a rule-of-thumb, a mixture's bromine number equals roughly twice its olefin content. 
BRT  Brutto register tons 
BS  Broken Stowage or Balance Sheet 
BS/L  Bills of lading 
BSA  British Shipbrokers Association 
BSC  British Shippers Council 
BSEA  Black Sea 
BSG  Barge Safety Guide 
BSI  British Standards Institution 
BSS  Basis 
BSS 1/1  Basis 1 port to 1 port 
BST  British Summer Time, British Standard Time 
BT  Berth Terms or Bow Thruster 
BT  Bow Thruster room 
BTD  Butadiene 
BTU  British Thermal Unit - 0.252 kcal or Bow Thrust Unit 
BTX  Abbreviation of the aromatic hydrocarbons, benzene, toluene and xylene 
BTX extraction  A solvent recovery process for capturing benzene, toluene, and xylenes from refinery and petrochemical plant process streams (reformate and pyrolysis gasoline.) 
BU  Bushel 
BUA  Beratergrenium für Umweltrelevante Altstoffe (the German Advisory Committee on Existing Chemicals of Environmental Relevance) 
Bucket Dredger  A vessel equipped to obtain material from the sea bed by use of circulating buckets. The material may be carried on board, transferred to other vessels, pumped ashore or deposited elsewhere using a spray 
Bucket Dredger Pontoon  A non propelled dredger pontoon fitted with an endless chain of buckets lowered to the sea bed 
Bulk Aggregates Barge, non propelled  A non propelled barge for the carriage of bulk aggregates 
Bulk Barge, propelled  A self propelled barge with an arrangement of topside ballast tanks for the carriage of bulk dry cargo of a homogeneous nature 
Bulk Cargo  Not in packages or containers; shipped loose in the hold of a ship without mark and count.” Grain, coal and sulfur are usually bulk freight. 
Bulk Cargo Barge, self discharging, propelled  A self propelled bulk barge fitted with a conveyor belt (or similar system) and a boom which can discharge cargo alongside or to shore without the assistance of any external equipment 
Bulk Cargo Carrier, self discharging  A bulk carrier fitted with self trimming holds, a conveyor belt (or similar system) and a boom which can discharge cargo alongside or to shore without the assistance of any external equipment 
Bulk Cargo Carrier, self discharging, Laker  A Great Lakes bulk carrier fitted with a conveyor belt (or similar system) and a boom which can discharge cargo alongside or to shore without the assistance of any external equipment 
Bulk Carrier  A single deck cargo vessel with an arrangement of topside ballast tanks for the carriage of bulk dry cargo of a homogeneous nature 
Bulk Carrier (with Vehicle Decks)  A bulk carrier with movable decks for the additional carriage of new vehicles 
Bulk Carrier, Laker Only  A single deck cargo vessel with dimensions suited to the limitations of Great Lakes of North America trade, unsuitable for open sea navigation. Hatches are more numerous than standard bulk carriers, and much wider than they are long 
Bulk Carriers  Ships designed to carry dry or liquid bulk cargo. Category includes: ore/bulk/oil carriers (OBO) and other combination bulk/oil carriers. 
Bulk Cement Barge, non propelled  A non propelled barge for the carriage of bulk cement 
Bulk Cement Barge, propelled  A self propelled barge fitted with pumping arrangements for the carriage of cement in bulk. There are no weather deck hatches. May be self discharging 
Bulk Cement Carrier, Inland Waterways  A vessel designed for the bulk transport of cement cargoes. Not designed for operation in open sea 
Bulk Cement Storage Ship  A stationary storage vessel for bulk cement cargo 
Bulk Dry Storage Barge, non propelled  A non propelled storage barge for dry cargoes 
Bulk Dry Storage Ship  A stationary storage vessel for bulk dry cargo 
Bulk/Oil Carrier (OBO)  A bulk carrier arranged for the alternative (but not simultaneous) carriage of crude oil 
Bulk–Freight Container  A container with a discharge hatch in the front wall; allows bulk commodities to be carried. 
Bulkhead  similar to a seawall, it is a constructed barrier in the water 
Bull Rings  Cargo–securing devices mounted in the floor of containers; allow lashing and securing of cargo. 
BUNDLING  This is the assembly of pieces of cargo, secured into one manageable unit. This is a very flexible description, a rule of thumb is to present cargo at a size easily handled by a large (20 ton) fork lift truck 
Bunker Charge  An extra charge sometimes added to steamship freight rates; justified by higher fuel costs. Also known as Fuel Adjustment Factor or FAF. 
Bunkering Tanker  A tanker equipped to supply other vessels with bunker fuels 
Bunkers  Fuel, usually residue grades, burned by ships' main engines. The most familiar kind, called bunker C may contain a high concentration of sulfur and have a high specific gravity but must meet a viscosity specification which assures free flow at the temperatures vessels' fuel systems can maintain. 
Buoy  Floating marker, secured to bottom of the sea, which is used as a navigational aid to mariners. 
Buoy & Lighthouse Tender  A vessel equipped for buoy laying and/or maintenance and for supply of stores and personnel to lighthouses 
Buoy Tender  A vessel equipped for buoy laying and/or maintenance 
Buoyed Up  Using a buoy to raise the bight of an anchor cable to prevent it from chafing on a rough bottom. 
Bureau Veritas  A French classification society which certifies seagoing vessels for compliance to standardized rules regarding construction and maintenance. 
Burn  Refers to either a chemical or thermal burn, the former may be caused by corrosive substances and the latter by liquefied cryogenic gases, hot molten substances, or flames. 
Burnback  The distance a flame will travel from the ignition source back to the aerosol container 
Burning kerosene  Kerosene intended for use as domestic stove lamp fuel. 
Butadiene  A four-carbon olefin. More precisely, a di-olefin because the molecule has two double bonds. Synthetic rubber production consumes much of the butadiene supply. Smaller amounts find an outlet in high-strength resins manufacturing. 
Butadiene  A flammable gaseous olefin used in making synthetic rubbers. Butadiene rubber has now completely displaced natural rubber in the manufacture of automobile tires. 
Butane  Butanes are colorless, odorless, gaseous hydrocarbons. The compound in which the carbon atoms are linked in a straight chain is called normal butane, or n-butane; the branched-chain form is isobutane. Both occur in natural gas and in crude oil and are formed in large quantities in the refining of petroleum to produce gasoline. 
Butanol  An alcohol derived from butane and used as solvents and in organic synthesis. 
Butene  Butylene 
Butter  Made by churning cream, often after a refining process. Cream is an emulsion of very small fat droplets in water. Milk proteins and salts are dissolved in the water. During churning, the small fat droplets coalesce until they form a continuous fat phase, in which about 16% of water is dispersed in small droplets. Excess aqueous phase separates off as whey. The emulsion has been changed from a fat-in-water emulsion to a water-in-fat emulsion. It has been ""inverted"". 
Butyl acetate  A volatile ester used as solvents for resins, lacquers, paints, and varnishes. 
Butyl rubbers  Butyl rubbers are a type of synthetic rubber prepared by polymerization of butylenes. They are a preferred option in the manufacture of automobile tires thanks to their leak-proof qualities. 
Butylene  Also called butene, any of four isomeric compounds belonging to the series of olefinic hydrocarbons. They are formed during the cracking of petroleum to produce gasoline; they can also be prepared commercially by the catalytic dehydrogenation of butanes. The major part of the butenes is utilized for the production of octanes, which are important constituents of gasoline. On dehydrogenation, normal butenes form butadiene, the principal starting material for synthetic rubber. 
Butyraldehyde  Butyraldehyde is a clear, colorless, flammable liquid, used chiefly as an intermediate in the manufacture of resins. 
Buy/sell  A swap in which, for accounting purposes or other reasons, company A sells a parcel to company B while B sells a second parcel to A. Each party buys one and sells another. 
BV  Bureau Veritas 
BW  Brackish water 
BWA  Brackish water allowance 
BWAD  Brackish Water Arrival Draft 
BWDD  Brackish water departure draft 
BWSC  Baltic and White Sea Conference 
BWT  Bleeding wing tanks 
BX  box 
By and Large  Currently means in all cases or in any case. From the nautical: by meaning into the wind and large meaning with the wind: as in, "By and Large the ship handled very well." 
BZNSS  Business