Glossary
Maritime glossary, terms beginning with A (page 13)
All maritime glossary terms that begin with the letter A, drawn from every subject section. 3739 entries.
Showing 250 of 3739 terms (page 13 of 15).
- ASD-Tug 3413 (Robert Allan) X30. Tug Operations and Harbour Towage
- 34 m by 13 m Robert Allan ASD design used by several global operators.
- ASEAN Cableship Pte Ltd X91. Submarines and Submarine Cable Systems
- Singapore-based joint venture cable ship operator whose fleet includes CS Asean Restorer.
- ASEAN Ports and Shipping X119. Maritime Conferences, Trade Shows and Awards
- Annual conference rotating among ASEAN capitals since 2003, organized by Transport Events.
- ASEAN Regional Forum (ARF) E1. Maritime security, geopolitics and risk
- Multilateral security dialogue including maritime confidence-building.
- ASF X127. Maritime Security, Anti-Piracy and PMSCs
- Atalanta Shared Awareness and De-confliction Mechanism, EU NAVFOR coordination forum with industry and other naval forces.
- Asgard II X128. Sail Training Ships and Tall Ship Associations
- Irish national sail training brigantine built 1981 at Arklow, 25.7 m length, owned by Coiste an Asgard, sank in the Bay of Biscay on 11 September 2008, all 25 crew rescued.
- Asgard Transport System X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
- Norwegian gas pipeline from the Åsgard field complex in the Norwegian Sea to the Kårstø processing plant.
- Ash content X2. Marine Bunker Fuels, Lubricants and Bunkering Operations
- Inorganic residue after combustion of a fuel sample, measured per ISO 6245, capped at 0.100% m/m for most residual grades.
- Ash Residue (Stowage) X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers
- Reference for organic peroxides where residues must be segregated to avoid catalytic decomposition; relevant to Class 5.2 stowage planning.
- Ashdod port deepening X124. Dredging Industry and Reclamation Contractors
- Israeli capital project to deepen the southern container terminal, executed in part by Jan De Nul.
- ASHRAE 15 X26. Reefer Containers and Cold Chain Logistics
- Safety standard for refrigeration systems, governs refrigerant charge limits and machinery room ventilation.
- ASHRAE 34 X26. Reefer Containers and Cold Chain Logistics
- Refrigerant designation and safety classification standard defining A1, A2L, A3, B1 etc.
- Ashurst X114. Maritime Arbitration and Shipping Law Firms
- Anglo-Australian law firm with shipping and offshore practice in London, Singapore, and Sydney.
- Asia Average Adjusters Association X86. Port Agency, Husbandry and Disbursement
- Regional body of average adjusters whose work intersects with agency port stay records.
- Asia Capital Reinsurance X145. P&I Clubs, War Risk Insurers, and Marine Insurance Markets
- Singapore-based reinsurer historically active in marine treaty business.
- Asia Captive Conference X117. Marine Insurance Markets, Captives and Reinsurance
- Annual captive insurance event held in Singapore and Labuan for Asia-Pacific captive owners.
- Asia Clean Fuel Index D6. Decarbonization, emissions and alternative fuels
- Generic index for clean marine fuel pricing in Asia.
- Asia Logistics, Maritime and Aviation Conference X119. Maritime Conferences, Trade Shows and Awards
- Annual Hong Kong event known as ALMAC, organized by HKTDC since 2011.
- Asia Pacific Gateway (APG) X122. Submarine Cable Laying, Repair Vessels and Operators
- 10,400 km consortium cable activated 2016 linking Malaysia, Singapore, Thailand, Vietnam, Hong Kong, China, Taiwan, Korea and Japan, built by NEC and HMN Technologies.
- Asia Pacific Maritime (APM) X119. Maritime Conferences, Trade Shows and Awards
- See APM Singapore; biennial trade exhibition for the Asia Pacific shipbuilding and marine equipment sector.
- Asia Pacific Maritime Institute X121. Maritime Education, Academies and Universities
- APMI in Manila, Philippines, founded 1996, an MTC providing STCW deck, engine and ratings courses.
- Asia Submarine Cable Express (ASE) X122. Submarine Cable Laying, Repair Vessels and Operators
- NTT-led 7,800 km system from Japan to Singapore via the Philippines, completed 2012 by NEC.
- Asia Tug and Salvage Convention (AsiaTUG) X119. Maritime Conferences, Trade Shows and Awards
- Biennial event of the ITS family rotating across Asian ports, organized by The ABR Company.
- Asia-Pacific Region X66. Port State Control and Regional MOUs
- Geographic scope of Tokyo MOU PSC activities.
- Asian clam (Corbicula fluminea) X18. Ballast Water, Biofouling and Antifouling
- Freshwater bivalve invasive in North America and Europe, partly spread through ballast water.
- Asian Hercules III X167. Major Salvage Companies, Wreck Removals, and Equipment
- Floating sheerleg crane operated by Smit Singapore with 5,000 tonne lift capacity, used in heavy lift salvage and offshore installation.
- Asian Logistics, Maritime and Aviation Conference (ALMAC) X119. Maritime Conferences, Trade Shows and Awards
- HKTDC flagship logistics event each November in Hong Kong.
- Asian Marine Services X115. Marine Bunker and Cargo Surveying
- Singapore-based inspection firm providing bunker surveying, cargo surveying, and ship condition reports across Southeast Asia.
- Asian Renewable Energy Hub X140. Ammonia as Marine Fuel and Hydrogen Shipping
- CWP-led 26 GW wind and solar project in Western Australia's Pilbara targeting 1.6 Mtpa green ammonia exports.
- Asian Seafarers Welfare Federation X154. Maritime Welfare, Seafarer Charities, and MLC Rights
- Regional network coordinating welfare delivery across major Asian crewing nations.
- Asian Settlement X44. Shipping Indices, FFAs and Freight Markets
- FFA settlement convention referencing Singapore-time index publication used in container and selected dry bulk derivatives.
- Asian Shipowners Association X98. Ship Registries and Flag States
- Regional industry body representing shipowners from Asian flag states.
- Asian shore crab (Hemigrapsus sanguineus) X18. Ballast Water, Biofouling and Antifouling
- Invasive crab established along the US east coast from ballast and hull fouling vectors.
- AsiaPacific LRIT Cooperative Data Centre X74. AIS Data, Vessel Tracking and Maritime Intelligence
- Regional LRIT data centre serving participating Asia-Pacific flag states.
- ASKO Maritime X109. Maritime Autonomous Surface Ships and MASS Code
- The Norwegian logistics company operating the Therese and Marit autonomous electric container barges in the Oslofjord.
- ASMA X97. Polar Expedition Cruise and IAATO Operations
- Antarctic Specially Managed Area, a Madrid Protocol designation for collaborative management of areas hosting multiple Antarctic activities.
- ASMAR X113. Drydock and Ship Repair Yards
- Astilleros y Maestranzas de la Armada, the Chilean state naval shipyard headquartered in Talcahuano with additional sites at Valparaíso and Punta Arenas.
- ASME B30.10 X104. Project Cargo Forwarders and Heavy Transport
- US standard covering hooks used in lifting service.
- ASME B30.20 X104. Project Cargo Forwarders and Heavy Transport
- US standard for below-the-hook lifting devices such as spreader bars and lifting beams.
- ASME B30.9 X104. Project Cargo Forwarders and Heavy Transport
- US standard governing the design, inspection, and use of slings for lifting.
- ASME B31.3 X20. LNG Operations and Custody Transfer
- Process Piping code commonly applied to onshore LNG terminal cryogenic piping design.
- ASMS X107. Maritime Cybersecurity and OT Security
- Augmented Safety Management System concept describing integration of cyber risk into existing ISM documentation.
- ASN Calais plant X122. Submarine Cable Laying, Repair Vessels and Operators
- Primary ASN manufacturing facility on the Boulevard des Allies, producing repeaters, BUs and cable since 1891, formerly the SAT cable works.
- ASN Greenwich X122. Submarine Cable Laying, Repair Vessels and Operators
- Repeater and BU manufacturing site at Christchurch Way, Greenwich, London, the historic Standard Telephones and Cables plant.
- ASN Marine X59. Offshore Wind O&M, CTVs and SOVs
- Submarine cable repair vessel operator providing fault locating and joint replacement services on offshore wind array and export cables.
- ASN North Highland Works X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
- Greenock-area facility in Scotland that manufactures and tests submarine cable systems for Alcatel Submarine Networks.
- ASNT Level II/III X5. Marine Surveying and Inspection
- NDT certification levels required for technicians performing class-relevant inspections.
- ASNT NDT Inspector X93. IBC Code and Chemical Tanker Operations
- Coating and weld inspector certified by the American Society for Nondestructive Testing, frequently engaged for chemical cargo tank surveys.
- ASOG X14. Offshore Oil and Gas Marine Operations
- Activity Specific Operating Guidelines used by DP operators per IMCA M220.
- ASPA X97. Polar Expedition Cruise and IAATO Operations
- Antarctic Specially Protected Area, a Madrid Protocol designation requiring a permit for entry into ecologically or scientifically sensitive zones.
- Asparagopsis armata X18. Ballast Water, Biofouling and Antifouling
- Invasive red alga transported via hull fouling and ballast.
- Asparagus reefer carriage X70. Reefer Containers and Cold Chain Shipping
- Perishable vegetable carried at about plus two degrees Celsius with high humidity and elevated air exchange to prevent spear toughening.
- Aspect (target) B3. Nautical Science
- Relative bearing of own vessel from target.
- Aspect ratio (foil) B1. Naval Architecture
- Ratio of span squared to planform area for rudders, foils, and fins.
- Aspect ratio (of a fin) X10. Marine Biology, Fisheries and Oceanography
- Ratio of fin span squared to area; high values typify fast-cruising pelagic fishes.
- Asphalt X75. IMDG Code, Classes, Packing and Segregation
- Not regulated unless transported hot, in which case UN 3257 Class 9 elevated temperature substance applies.
- Asphalt (Bitumen) X1. Cargo Science, Commodities and Cargo Care
- Heated liquid cargo carried at ~150-180 C in insulated tankers.
- Asphalt Carrier E4. Cruise, offshore energy and auxiliary/specialised fleets
- Specialized tanker for bitumen products.
- Asphalt Tank Container X83. ISO Container Manufacturing and Leasing
- Heated tank for bitumen and asphalt products, fitted with steam or electric tracing.
- Asphalt/Bitumen tanker B5. Ship Types and Individual Vessels
- Heated tanker for bitumen and asphalt.
- Asphaltene X2. Marine Bunker Fuels, Lubricants and Bunkering Operations
- High-molecular-weight polar fraction insoluble in n-heptane, central to fuel stability and incompatibility.
- Asphaltene Deposit X5. Marine Surveying and Inspection
- Heavy hydrocarbon residue often found in crude oil tanks during cleanliness surveys.
- Asphaltenes X47. Marine Fuel Quality and ISO 8217
- High molecular weight polar fractions of residual fuel insoluble in n-heptane, central to fuel stability and sludge formation.
- Asphyxiant Gas X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers
- Subsidiary characteristic of Class 2.2 gases such as nitrogen UN 1066 that displace oxygen in enclosed spaces.
- Asphyxiation Hazard X13. Marine Salvage and Wreck Removal
- Oxygen depletion risk in flooded or inerted tanks during salvage entry.
- Aspida Training X160. Maritime Academies, Universities, and STCW Certification
- Greek maritime training provider offering STCW Basic, Advanced, tanker, and security courses to Greek-flag and Greek-managed crews.
- Aspirante Pilot X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
- Trainee pilot grade used in several Latin American jurisdictions during the apprenticeship period before commissioning.
- Aspirated Hat X82. Saturation Diving and Offshore Diving Operations
- Diving helmet with free-flow oxygen built for treatment of contaminated diver casualties.
- Aspirational Target 30 by 30 D3. Marine environmental science, pollution and conservation
- CBD goal to protect 30 percent of land and sea by 2030.
- Aspirator X63. Marine Auxiliary Machinery and Pumps
- Venturi-based eductor used to draw vacuum on fresh water generators by motive seawater flow.
- Aspirin 300 mg chewable X36. Shipboard Medical, Telemedicine and Seafarer Health
- Antiplatelet dose given on suspected acute myocardial infarction per IMGS cardiac protocol.
- ASR Aircraft X80. Maritime Search and Rescue Coordination
- Air Sea Rescue aircraft, a historical term retained in some national services.
- ASRY X113. Drydock and Ship Repair Yards
- Arab Shipbuilding and Repair Yard in Sitra, Bahrain, established 1977 with four graving docks and four floating docks for VLCC and offshore work.
- Assembly A1. The IMO and the international regulatory framework
- Highest IMO governing body, composed of all Member States, meeting biennially.
- Assembly stage X58. Shipbuilding Yards and Construction
- Phase between subassembly and grand-assembly in which panels and webs are joined into blocks.
- Assessment Survey X43. Marine Surveying and Warranty Surveying
- A high-level technical appraisal of a vessel's condition, often commissioned by financiers, buyers, or managers contemplating acquisition or refinancing.
- Assessor X21. STCW Certificates, Crewing and Seafarer Welfare
- Person qualified under STCW Section A-I/6 to evaluate seafarer competence at sea or in an approved center.
- Asset Backed Finance X49. Ship Finance, Leasing and Maritime Capital Markets
- Lending or leasing in which the vessel itself is the primary credit support.
- Asset Cover Covenant X49. Ship Finance, Leasing and Maritime Capital Markets
- Loan covenant requiring vessel market value to exceed outstanding debt by a defined ratio.
- Asset Freeze X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes
- A sanctions measure prohibiting transactions in property owned or controlled by a designated person, the core legal effect of SDN listing under U.S. law and Annex I listing under EU law.
- Asset Heavy Owner X49. Ship Finance, Leasing and Maritime Capital Markets
- Shipowner whose strategy emphasizes vessel ownership over chartered in tonnage.
- Asset integrity management X59. Offshore Wind O&M, CTVs and SOVs
- Systematic program of inspections, monitoring, and interventions that preserves turbine and balance of plant reliability through the operating life.
- Asset Inventory X25. Maritime Cybersecurity, OT and IT
- Documented list of hardware, software and firmware required by NIST CSF Identify and IEC 62443 ZCR 1.
- Asset Light Operator X49. Ship Finance, Leasing and Maritime Capital Markets
- Shipping company that controls tonnage primarily through time charters and leases rather than ownership.
- Asset Owner X48. Maritime Cybersecurity
- Per IEC 62443, the organization accountable for the secure operation of an industrial automation and control system, typically the shipowner or operator.
- Asset Performance Management (APM) E3. Technology, digitalization and smart shipping
- Predictive maintenance platform category.
- Asset Play X29. Ship Sale and Purchase, Management Contracts and Valuation
- Buying a ship for resale gain rather than for trading income.
- Asset Tracking Module (ATM) X53. Marine Insurance, P&I and Hull Clauses
- A vessel data-capture component used by insurers and operators to monitor location, speed, and operational status of insured assets in real time.
- Assigned Berth X86. Port Agency, Husbandry and Disbursement
- Specific berth designated by the terminal or port authority for a given vessel call.
- Assigned Stowage Category X75. IMDG Code, Classes, Packing and Segregation
- Letter A, B, C, D or E given in column 16a of the Dangerous Goods List for each UN entry.
- Assignment A5. Maritime Law, private and commercial
- Transfer of contractual rights, common in bill-of-lading and insurance contexts.
- Assignment Clause X51. Maritime Arbitration, Law and BIMCO Clauses
- A charterparty provision regulating the transfer of contractual rights or benefits to a third party.
- Assignment of arbitration agreement X152. Maritime Arbitration and Dispute Resolution
- Transfer of rights under a contract including the embedded arbitration clause, generally permitted but raising questions of consent in chain charterparty disputes.
- Assignment of earnings C1. Commercial shipping, chartering, economics and finance
- Security taken by ship finance lenders over freight, hire, and insurance proceeds.
- Assignment of Insurances X29. Ship Sale and Purchase, Management Contracts and Valuation
- Security over hull, machinery, and P&I cover in favor of lender.
- Assignment of Policy X4. Marine Insurance, P&I and Claims
- transfer of the benefit of a marine policy under section 50 of the Marine Insurance Act 1906.
- Assignment, lashing crew X76. Stevedoring, Lashing and Cargo Securing
- Allocation of stevedore gangs to specific bays for securing or unsecuring work during port operations.
- Assist tug X15. Ports, Terminals and Stevedoring
- tug supporting a vessel during berthing or unberthing.
- Assistance Entity X80. Maritime Search and Rescue Coordination
- Any agency or vessel capable of rendering aid during a SAR case.
- Assistance Provider (MLC) X102. Seafarer Welfare and Maritime Charities
- Welfare body recognized under MLC 2006 Regulation 4.4 to deliver shore-based welfare services in seafarers' centers.
- Assistance to Vessel in Distress X99. Marine Salvage Awards and SCOPIC
- Master's duty under SOLAS and the Salvage Convention to render assistance to persons in danger at sea.
- Assistant Engineer X21. STCW Certificates, Crewing and Seafarer Welfare
- Junior engineer officer rank below Third Engineer, often a cadet posting on US ships.
- Assistant Expedition Leader X97. Polar Expedition Cruise and IAATO Operations
- Deputy to the Expedition Leader on a polar expedition ship, supporting landings, logistics, and team coordination.
- Assisting Tug X60. Marine Salvage and Wreck Removal
- Tug providing routine maneuvering assistance, distinguished by intent and circumstance from a salvage tug.
- ASSO.STAR X123. Offshore Wind Installation Vessels and Operators
- Cable-lay vessel operated by Asso.subsea, used for inter-array cable installation on multiple Mediterranean and North Sea projects.
- Asso.subsea X123. Offshore Wind Installation Vessels and Operators
- Greek subsea cable installation contractor with offices in Athens and Bristol, fleet includes ASSO.STAR and Asso Trident.
- Asso.Subsea Athena X105. Offshore Wind Farm Installation and Vessels
- Cable lay vessel operated by Asso.Subsea for inter-array and export cable installation in offshore wind projects.
- Asso.Subsea Helios X105. Offshore Wind Farm Installation and Vessels
- Cable lay vessel in the Asso.Subsea fleet supporting submarine cable installation in European wind farms.
- Associated Branch Pilots X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
- Louisiana state-commissioned pilots handling vessels between the Gulf of Mexico sea buoy and Pilottown at the Mississippi River mouth.
- Associated Marine Surveyors Conference X119. Maritime Conferences, Trade Shows and Awards
- Annual professional gathering of IIMS branches, hosted in London or other branch cities.
- Associated Ship X51. Maritime Arbitration, Law and BIMCO Clauses
- A vessel under common ownership or control with the wrongdoing ship, against which arrest may be permitted under the 1999 Arrest Convention and some national laws.
- Association of Average Adjusters X108. Marine Insurance and P&I Clubs
- The London based professional body, founded 1869, that publishes rules of practice for general average adjustment.
- Association of Ship Brokers and Agents (ASBA) X161. Shipbroking, Freight Derivatives, and Baltic Indices
- New York-based broker association that maintains the Asbatankvoy form and runs the annual ASBA Cargo Conference.
- Assumed latitude X16. Nautical Science, Navigation and COLREGs
- Latitude chosen near the DR for tabular sight reduction.
- Assumed longitude X16. Nautical Science, Navigation and COLREGs
- Longitude chosen so LHA is a whole degree for sight reduction.
- Assumed position (AP) B3. Nautical Science
- Reference position for sight reduction.
- Assured X4. Marine Insurance, P&I and Claims
- the party named in the policy entitled to claim under it.
- ASTA (American Sail Training Association) X128. Sail Training Ships and Tall Ship Associations
- Founded 1973 in Newport Rhode Island, rebranded as Tall Ships America in 2007, the US member national sail training organization affiliated with Sail Training International.
- Astaara X107. Maritime Cybersecurity and OT Security
- Cyber insurance and risk monitoring provider focused on the maritime sector.
- Aster 15 X11. Naval Vessels, Warship Systems and Naval Architecture
- MBDA short-to-medium range surface-to-air missile with 30 km range.
- Aster 30 X11. Naval Vessels, Warship Systems and Naval Architecture
- MBDA long-range SAM with 120 km class range, Block 1NT for ABM.
- Aster 30 Block 1NT X106. Naval Surface Combatants
- New-technology variant of Aster 30 providing exo-atmospheric ballistic missile defense capability for European navies.
- Aster-class X77. Naval Mine Warfare and Mine Countermeasures
- The Belgian Naval Component designation for its Tripartite-class minehunters such as BNS Aster (M915).
- Astern X3. Ship Handling, Seamanship and Deck Vocabulary
- Behind the vessel; engine order for reverse propulsion.
- Astern Drive (RA ASD-Tug Series) X30. Tug Operations and Harbour Towage
- Robert Allan Ltd family of conventional twin azimuth stern drive tug designs.
- Astern guardian valve X19. Engine Room Watchkeeping and UMS Operations
- Valve in maneuvering system preventing astern starting air admission when ahead direction is selected.
- Astern operation (DAS) X27. Polar Code, Ice Navigation and Polar Operations
- Operation of double-acting ships stern-first to break heavier ice.
- Astern Propulsion Failure X60. Marine Salvage and Wreck Removal
- Loss of reverse thrust capability, a common precipitating factor in grounding casualties.
- Astern Pump X63. Marine Auxiliary Machinery and Pumps
- Service pump arranged for reversed flow during astern operation of certain steam turbine systems.
- Astern thrust X38. Propellers, Stern Gear and Shaft Lines
- Thrust generated when the propeller turns in reverse rotation (FPP) or with negative pitch (CPP).
- Astern Trial X5. Marine Surveying and Inspection
- Sea trial element verifying astern propulsion performance during sea or commissioning surveys.
- Asters X114. Maritime Arbitration and Shipping Law Firms
- Ukrainian law firm with a maritime practice in Kyiv and Odessa.
- Astilleros Armon X79. Tugs and Towage Industry
- Spanish shipbuilder in Asturias known for ocean-going tugs and offshore vessels.
- Astilleros Cantábricos X113. Drydock and Ship Repair Yards
- Spanish ship repair group active on the Cantabrian coast with yards historically focused on fishing, offshore, and small commercial tonnage.
- Astilleros de Cadiz X58. Shipbuilding Yards and Construction
- Navantia yard in southern Spain historically building offshore platforms and naval vessels.
- Astilleros de Mallorca X156. Superyacht Industry, Builders, and Yacht Charter Market
- Refit yard in Palma de Mallorca with dry docks and quayside berths used by large sail and motor yachts for class and warranty work.
- Astilleros Gondan X58. Shipbuilding Yards and Construction
- Spanish private yard at Figueras building tugs, ferries, and offshore support vessels.
- Astilleros Las Palmas X113. Drydock and Ship Repair Yards
- Canary Islands ship repair company operating in the Port of Las Palmas serving the West African and mid-Atlantic trades.
- Astilleros Murueta X58. Shipbuilding Yards and Construction
- Basque shipyard at Murueta and Erandio constructing dry cargo and multipurpose vessels.
- Astilleros Zamakona X58. Shipbuilding Yards and Construction
- Basque yard at Bilbao and Las Palmas building tugs, fishing vessels, and patrol craft.
- ASTM A370 X92. Marine Steel Suppliers and Shipbuilding Plate
- Standard test methods and definitions for mechanical testing of steel products including tensile properties.
- ASTM A578 X92. Marine Steel Suppliers and Shipbuilding Plate
- Standard specification for straight beam ultrasonic examination of rolled steel plates for special applications.
- ASTM D1250 X115. Marine Bunker and Cargo Surveying
- Standard guide for petroleum measurement tables that provides volume correction factors used to bring observed volumes to 15 degrees C.
- ASTM D1250-19 X155. Marine Surveying Practice and Cargo Inspection
- The current edition of the Standard Guide for the Use of the Petroleum Measurement Tables, jointly maintained by ASTM, API, and IP, defining the calculation of volume correction factors.
- ASTM D1298 X47. Marine Fuel Quality and ISO 8217
- Density, relative density, or API gravity by hydrometer.
- ASTM D1655 X31. Helicopter Operations on Ships
- Standard Specification for Aviation Turbine Fuels, including Jet A-1.
- ASTM D1796 X47. Marine Fuel Quality and ISO 8217
- Water and sediment in fuel oils by centrifuge.
- ASTM D189 X47. Marine Fuel Quality and ISO 8217
- Conradson carbon residue test method.
- ASTM D1945 X20. LNG Operations and Custody Transfer
- Standard test method for analysis of natural gas by gas chromatography, basis for GIIGNL custody transfer composition.
- ASTM D2270 X61. Marine Lubricants and Cylinder Oils
- Standard practice for calculating viscosity index from kinematic viscosities at 40 and 100 degrees Celsius.
- ASTM D240 X47. Marine Fuel Quality and ISO 8217
- Bomb calorimeter test method for gross heat of combustion.
- ASTM D2622 X47. Marine Fuel Quality and ISO 8217
- Sulfur in petroleum products by wavelength dispersive X-ray fluorescence.
- ASTM D2709 X47. Marine Fuel Quality and ISO 8217
- Water and sediment in middle distillate fuels by centrifuge.
- ASTM D287 X47. Marine Fuel Quality and ISO 8217
- Hydrometer method for API gravity of crude and petroleum products.
- ASTM D2896 X61. Marine Lubricants and Cylinder Oils
- Standard test method for Base Number of petroleum products by potentiometric perchloric acid titration, the reference method for fresh cylinder oils.
- ASTM D3279 X47. Marine Fuel Quality and ISO 8217
- Standard test method for n-heptane insolubles.
- ASTM D3359 X88. Marine Surface Preparation and Coatings Application
- Standard test method for rating adhesion by tape test, including the X-cut and cross-hatch procedures.
- ASTM D3588 X20. LNG Operations and Custody Transfer
- Standard practice for calculating heat value, compressibility factor, and relative density of gaseous fuels.
- ASTM D4052 X47. Marine Fuel Quality and ISO 8217
- Density and relative density of liquids by digital density meter.
- ASTM D4057 X115. Marine Bunker and Cargo Surveying
- Standard practice for manual sampling of petroleum and petroleum products, the reference for spot sampling on bunker barges.
- ASTM D4138 X88. Marine Surface Preparation and Coatings Application
- Standard practice for measurement of dry film thickness of protective coating systems by destructive cross-sectional means using a Tooke gauge.
- ASTM D4176 X47. Marine Fuel Quality and ISO 8217
- Free water and particulate contamination in distillate fuels by visual inspection.
- ASTM D4177 X115. Marine Bunker and Cargo Surveying
- Standard practice for automatic sampling of petroleum and petroleum products, the reference for flow-proportional bunker line sampling.
- ASTM D4285 X88. Marine Surface Preparation and Coatings Application
- Standard test method for indicating oil or water in compressed air using a white blotter held downstream of the air supply.
- ASTM D4294 X2. Marine Bunker Fuels, Lubricants and Bunkering Operations
- Energy-dispersive X-ray fluorescence (EDXRF) test for sulphur in petroleum products.
- ASTM D4414 X88. Marine Surface Preparation and Coatings Application
- Standard practice for measurement of wet film thickness by notched gauge.
- ASTM D4417 X88. Marine Surface Preparation and Coatings Application
- Standard test methods for field measurement of surface profile of blast-cleaned steel, covering Method A depth micrometer, Method B comparator, and Method C replica tape.
- ASTM D445 X2. Marine Bunker Fuels, Lubricants and Bunkering Operations
- Standard test method for kinematic viscosity of transparent and opaque liquids.
- ASTM D4530 X47. Marine Fuel Quality and ISO 8217
- Micro method for determining carbon residue.
- ASTM D4541 X88. Marine Surface Preparation and Coatings Application
- Standard test method for pull-off strength of coatings using portable adhesion testers such as the PosiTest AT or Elcometer 506.
- ASTM D473 X47. Marine Fuel Quality and ISO 8217
- Sediment in crude oils and fuel oils by extraction.
- ASTM D4737 X47. Marine Fuel Quality and ISO 8217
- Calculated cetane index by four-variable equation.
- ASTM D4739 X47. Marine Fuel Quality and ISO 8217
- Base number determination by potentiometric titration.
- ASTM D4740 X2. Marine Bunker Fuels, Lubricants and Bunkering Operations
- Spot test for fuel cleanliness and compatibility using a filter paper procedure.
- ASTM D482 X47. Marine Fuel Quality and ISO 8217
- Standard test method for ash from petroleum products.
- ASTM D4870 X47. Marine Fuel Quality and ISO 8217
- Determination of total sediment in residual fuels.
- ASTM D4951 X61. Marine Lubricants and Cylinder Oils
- Standard test method for additive elements in lubricating oils by inductively coupled plasma atomic emission spectrometry.
- ASTM D5162 X88. Marine Surface Preparation and Coatings Application
- Standard practice for discontinuity (holiday) testing of nonconductive protective coatings on metallic substrates, covering low-voltage wet sponge Type I and high-voltage spark Type II procedures.
- ASTM D5185 X61. Marine Lubricants and Cylinder Oils
- Standard test method for multielement determination of used and unused lubricating oils by ICP-OES, the primary wear metals method.
- ASTM D524 X47. Marine Fuel Quality and ISO 8217
- Ramsbottom carbon residue test method.
- ASTM D5291 X47. Marine Fuel Quality and ISO 8217
- Instrumental determination of carbon, hydrogen, and nitrogen.
- ASTM D5402 X88. Marine Surface Preparation and Coatings Application
- Standard practice for assessing the solvent resistance of an organic coating using solvent rubs.
- ASTM D5800 X61. Marine Lubricants and Cylinder Oils
- Standard test method for evaporation loss of lubricating oils by the Noack method.
- ASTM D6132 X88. Marine Surface Preparation and Coatings Application
- Standard test method for nondestructive measurement of dry film thickness of applied organic coatings using an ultrasonic coating thickness gauge.
- ASTM D6304 X47. Marine Fuel Quality and ISO 8217
- Karl Fischer coulometric water determination.
- ASTM D6469 X47. Marine Fuel Quality and ISO 8217
- Standard guide for microbial contamination in fuels and fuel systems.
- ASTM D6595 X61. Marine Lubricants and Cylinder Oils
- Standard test method for determination of wear metals and contaminants in used lubricating oils by rotating disc electrode atomic emission spectrometry.
- ASTM D664 X47. Marine Fuel Quality and ISO 8217
- Standard test method for acid number of petroleum products by potentiometric titration.
- ASTM D7039 X47. Marine Fuel Quality and ISO 8217
- Sulfur in gasoline and diesel fuel by monochromatic wavelength dispersive XRF.
- ASTM D7091 X88. Marine Surface Preparation and Coatings Application
- Standard practice for nondestructive measurement of dry film thickness of nonmagnetic coatings on ferrous metals and nonconductive coatings on nonferrous metals.
- ASTM D7094 X47. Marine Fuel Quality and ISO 8217
- Flash point by modified continuously closed cup tester.
- ASTM D7112 X149. Marine Fuels, Bunkering, and Alternative Fuels
- Spot test method for determining compatibility and stability of residual fuel blends using a spot on filter paper.
- ASTM D7212 X47. Marine Fuel Quality and ISO 8217
- Low-sulfur determination by energy dispersive XRF.
- ASTM D7393 X88. Marine Surface Preparation and Coatings Application
- Standard practice for indicating oil in abrasives.
- ASTM D7619 X2. Marine Bunker Fuels, Lubricants and Bunkering Operations
- Particle count by optical microscopy for cat fines and other solids in middle distillates and residual fuel.
- ASTM D86 X47. Marine Fuel Quality and ISO 8217
- Standard test method for atmospheric distillation of petroleum products, used for distillate marine fuels.
- ASTM D92 X61. Marine Lubricants and Cylinder Oils
- Standard test method for flash and fire points by Cleveland open cup tester.
- ASTM D93 X47. Marine Fuel Quality and ISO 8217
- Pensky-Martens closed cup test method for flash point of petroleum products.
- ASTM D97 X47. Marine Fuel Quality and ISO 8217
- Standard test method for pour point of petroleum products.
- ASTM D976 X47. Marine Fuel Quality and ISO 8217
- Calculated cetane index method for distillate fuels.
- ASTM E23 X92. Marine Steel Suppliers and Shipbuilding Plate
- Standard test method for notched bar impact testing of metallic materials including Charpy V notch.
- ASTM E337 X88. Marine Surface Preparation and Coatings Application
- Standard test method for measuring humidity with a psychrometer using wet- and dry-bulb temperatures.
- ASTM F-1523 X126. Marine Oil Spill Response and OPRC Regimes
- Standard guide for selection and use of oil spill containment booms, the primary North American boom specification.
- ASTM F-1737 X126. Marine Oil Spill Response and OPRC Regimes
- Standard guide for use of fire boom in situ burning operations.
- ASTM F-2152 X126. Marine Oil Spill Response and OPRC Regimes
- Standard guide for in situ burning of spilled oil in marshes.
- ASTM F-625 X126. Marine Oil Spill Response and OPRC Regimes
- Standard practice for classifying water bodies for spill control systems, defining calm, protected, open, and rough water categories.
- ASTM F-715 X126. Marine Oil Spill Response and OPRC Regimes
- Standard test methods for coated fabrics used in oil spill boom construction.
- ASTM F-818 X126. Marine Oil Spill Response and OPRC Regimes
- Standard terminology of equipment for use with oil spill response.
- ASTM F1145 X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral
- ASTM standard for cast or fabricated bollards used aboard ships, covering geometry, loading, and welding for bitts and cruciform bollards.
- ASTM F3445 X109. Maritime Autonomous Surface Ships and MASS Code
- The ASTM International standard providing guidance for the design and operation of autonomous and remotely operated vessels.
- ASTM G42 X88. Marine Surface Preparation and Coatings Application
- Standard test method for cathodic disbonding of pipeline coatings subjected to elevated temperatures.
- ASTM G62 X88. Marine Surface Preparation and Coatings Application
- Standard test methods for holiday detection in pipeline coatings.
- ASTM G8 X88. Marine Surface Preparation and Coatings Application
- Standard test methods for cathodic disbonding of pipeline coatings.
- ASTM Table 24 X155. Marine Surveying Practice and Cargo Inspection
- The metric companion to Table 6, correcting volume to 15 degrees Celsius against density at 15 degrees C for generalized products.
- ASTM Table 26 X155. Marine Surveying Practice and Cargo Inspection
- The volume correction table for lubricating oils, distinguishing them from generalized products and crude oils.
- ASTM Table 52 X155. Marine Surveying Practice and Cargo Inspection
- Generalized products volume correction against density at 15 degrees C, the metric counterpart to the older imperial tables.
- ASTM Table 54B X115. Marine Bunker and Cargo Surveying
- Historical volume correction table for generalized petroleum products at 15 degrees C, now superseded by tables embedded in ISO 91:2017.
- ASTM Table 6 X155. Marine Surveying Practice and Cargo Inspection
- Generalized petroleum products correction of volume to 60 degrees Fahrenheit against API gravity at 60 degrees F.
- Astondoa X124. Dredging Industry and Reclamation Contractors
- Santa Pola, Spain builder founded in 1916, producing motoryachts up to 121 feet.
- Astrid Maersk X111. Methanol, Ammonia and Alternative Marine Fuels
- 16,200 TEU methanol dual-fuel container ship delivered to A.P. Moller-Maersk by Hyundai Heavy Industries in 2024.
- Astrolabe F1. Maritime History
- Medieval Arab and European altitude-measuring instrument adapted as the mariner's astrolabe in the fifteenth century.
- Astrolabe Reef X141. Marine Salvage Industry and Wreck Removal Contractors
- Bay of Plenty reef where MV Rena grounded on 5 October 2011, generating a NZD 660 million wreck removal contract.
- Astronomical refraction X16. Nautical Science, Navigation and COLREGs
- Bending of light through Earth's atmosphere when observing celestial bodies.
- Astronomical Tide D2. Hydrography, tides, waves, bathymetry and marine geology
- Tide produced solely by gravitational forcing of the Sun and Moon.
- Astronomical triangle B3. Nautical Science
- Celestial PZX triangle for sight reduction.
- Astronomical twilight X16. Nautical Science, Navigation and COLREGs
- Period when the Sun is between 12 degrees and 18 degrees below the horizon.
- Astrup Fearnley X49. Ship Finance, Leasing and Maritime Capital Markets
- Norwegian shipbroking and investment banking group with a long established project finance desk.
- Astute class X11. Naval Vessels, Warship Systems and Naval Architecture
- Royal Navy SSN with Spearfish and Tomahawk Block IV.
- ASV C-Worker X129. Hydrographic Offices, Survey Vessels and Marine Cartography
- Autonomous surface vessel range from L3Harris ASV used for hydrographic survey, sometimes deployed alongside crewed survey ships to extend swath coverage.
- ASV Global X109. Maritime Autonomous Surface Ships and MASS Code
- A United Kingdom autonomous surface vessel developer acquired by L3 in 2018 and later integrated into BAE Systems Maritime.
- ASV Global C-Cat X65. ROVs, AUVs, USVs and Marine Robotics
- Catamaran-hulled survey USV from ASV Global used for shallow water bathymetric work.
- ASV Global C-Enduro X65. ROVs, AUVs, USVs and Marine Robotics
- Long-endurance solar and wind assisted USV from ASV Global designed for persistent ocean monitoring missions.
- ASV Global C-Stat X65. ROVs, AUVs, USVs and Marine Robotics
- Station-keeping USV from ASV Global designed to hold position over a subsea asset for extended monitoring.
- ASV Global C-Target X65. ROVs, AUVs, USVs and Marine Robotics
- Family of remote-controlled high-speed surface targets used for naval gunnery and missile training.
- ASV Global C-Worker X65. ROVs, AUVs, USVs and Marine Robotics
- Family of work-class unmanned surface vessels developed by ASV Global, later acquired by L3Harris Technologies.
- ASView X109. Maritime Autonomous Surface Ships and MASS Code
- The autonomy control software developed by ASV Global for tasking and supervising unmanned surface vehicles.
- ASW X11. Naval Vessels, Warship Systems and Naval Architecture
- Anti-submarine warfare.
- ASW Frigate E2. Naval, defence and maritime law enforcement
- Frigate optimized for submarine hunting.
- Asyad Bunkering X72. Bunkering Hubs and Bunker Suppliers
- Bunkering arm of Oman state logistics group Asyad operating at Sohar, Salalah, and Duqm.
- Asymmetric Spinnaker X84. Yacht Racing, Regattas and Sailing Governance
- A downwind sail tacked to the bow or a bowsprit and trimmed without a pole, often called a gennaker.
- Asymmetric stern B1. Naval Architecture
- Hull form with port/starboard asymmetry tuned for propeller wake.
- Asynchronous Motor X67. Marine Electrical Systems and Shore Power
- Induction motor commonly used for pumps, fans, and auxiliary drives aboard ship.
- Asynchronous Telemetry X109. Maritime Autonomous Surface Ships and MASS Code
- A communications mode in which sensor or status messages are transmitted on event rather than at fixed intervals, often used over Iridium backhaul.
- At and from C1. Commercial shipping, chartering, economics and finance
- Marine insurance clause covering the vessel both in port and on voyage.
- At-the-Market FFA X44. Shipping Indices, FFAs and Freight Markets
- A Forward Freight Agreement transacted at the current cleared forward curve level for the relevant route and tenor.
- ATA X15. Ports, Terminals and Stevedoring
- Actual Time of Arrival at the pilot station or berth.
- ATA Carnet C3. Logistics, freight forwarding and multimodal trade
- Customs document for temporary admission.
- Atago class X11. Naval Vessels, Warship Systems and Naval Architecture
- JMSDF Aegis DDG with SPY-1D(V), lead ship DDG-177.
- Atago-class destroyer X106. Naval Surface Combatants
- JMSDF Aegis-equipped guided-missile destroyer class, JS Atago DDG-177 commissioned 2007 and JS Ashigara DDG-178 commissioned 2008.