WHO
World Health Organization
Whole Naphtha
A distillation cut which spans the entire boiling range commonly designated as naphtha. This full-range product contains the fractions separable into light naphtha and heavy naphtha. Its initial boiling point can commonly fall between 90 and 100 F and its final boiling point extend as high as 400 F.
WHTC
Wordscale hours, terms and conditions
WIBON
Whether In Berth Or Not. Shall mean that if the designated loading or discharging Berth is not available on arrival, the Vessel on reaching any usual waiting place at the Port, shall be entitled to tender Notice of Readiness from it and Laytime shall commence in accordance with the Charter Party.
WICCON
Whether in cargo clearance or not
WIFPON
Whether In Free Practique or Not
Wind Turbine Installation Vessel
A vessel equipped for the installation of wind turbines in shallow waters
Wind Turbine Installation Vessel (semi sub)
A semi submersible vessel equipped for the installation of wind turbines in shallow waters
Wind Turbine Vessel
A vessel fitted with wind turbines to generate electricity
Windfall
A sudden unexpected rush of wind from a mountainous shore which allowed a ship more leeway.
Windward
Toward the direction from which the wind is coming
Windy Booking
A freight booking made by a shipper or freight forwarder to reserve space but not actually having a specific cargo at the time the booking is made. Carriers often overbook a vessel by 10 to 20 percent in recognition that “windy booking” cargo will not actually ship.
Wine Tanker
A cargo ship designed for the bulk transport of Wine in tanks. Tanks will be stainless steel or lined. New vessels will be classified as chemical carriers
Wing In Ground Effect Vessel
A vessel designed to run at high speed using foils to create an air cushion raising the vessel just off the waters surface
Wingwall
usually acts as a retaining wall or as a support for an abutment.
Winterization
Some crude edible oils, especially those obtained by solvent extraction, contain among their non-oil components traces of wax from the seed coat which tend to give the oil a cloudy appearance. In addition, some liquid oils have a small content of high melting glycerides. These components may be removed by slow chilling of the oil followed by filtration. This process is called ""winterisation"". After being subjected to winterisation, the oils should be able to pass the standard AOCS Cold Test.
WIPON
Whether in Port Or Not. Shall mean that if the designated loading or discharging Berth and the usual waiting place at the Port are not available on arrival, the Vessel shall be entitled to tender Notice of Readiness from any recognised waiting place off the Port and Laytime shall commence in accordance with the Charter Party.
Without Recourse
A phrase preceding the signature of a drawer or endorser of a negotiable instrument; signifies that the instrument is passed onto subsequent holders without any liability to the endorser in the event of nonpayment or nondelivery.
WIWL
within institute warrant limit
WLTHC
Waterline to top of hatch coaming
WLTM
Water level to manifold
WLTOHC
Water Line-To-Hatch Coaming
WM or W/M
Weight or Measurement: The basis for assessing freight charges. Also known as “worm.” The rate charged under W/M will be whichever produces the highest revenue between the weight of the shipment and the measure of the shipment. The comparison is based on the number of metric tons the cargo weights compared to the number of cubic meters of space the cargo measures. The prior English method was one long ton compared to forty cubic feet.
WMO
World Meterological Organisation
WNA
Winter North Atlantic (loadline)
WOG
Without Guarantee or With Other Goods
Wood Chips Carrier, self unloading
A single deck cargo vessel with high freeboard for the carriage of wood chips. May be self discharging
Work/Maintenance Pontoon, non propelled
A non propelled pontoon used for working or maintenance functions
Work/Repair Vessel
A multi functional vessel for general work and repair operations
Working Copy
(Copy of Charter Party - not being signed and may contain unchecked errors
Working Day
WORKING DAY shall mean a Day when by local law or practice work is normally carried out.
World Scale
First introduced during World War II, and subsequently developed and refined, world scale is a system whereby a tanker can obtain the same net return per day at the same world scale percentage regardless of the voyage actually undertaken.
Worldscale
Worldwide Tanker Nominal Freight Scale. Worldscale Association, a shipping industry group, publishes a lengthy schedule of rates for popular tanker voyages. The printed figures, called World scale 100's, reflect application of tanker operating cost assumption to the ports and distancesteaming time on route. These “flat rates” appear in US dollars per ton of cargo. Shipowners and spot charterers usually negotiate the hire price of a tanker as percentage of Worldscale 100 for the voyage involved. They might fix at Worldscale 40 (WS 100 x2.00), or any other number dictated by size and kind of ship, market conditions, and negotiating skill.
WP
Weather Permitting or Without Prejudice
WPA
With particular average
WPD
Weather Permitting Day
WR
Warehouse Receipt or Without Responsibility
WRTD
Without reference to date
WSHTC
Within Vessel's Natural Segregation
WSHTC
Worldscale Hours Terms and Conditions
WSIM
Water Separation Index Modified. See WATER REACTION.
WSNP
Weather And Safe Navigation Permitting
WT
Wing tank (OCIMF acronym)
WTI
West Texas Intermediate - A type of crude oil which is normally referenced in Western reports on oil prices
WTO
World Trade Organization
WTSBE
Working time saved both ends
WTSBE or WTSBENDS
Working time saved both ends
WVNS
Within vessels natural segregation
WW
World Wide or Weather working
WWAWIWL
Worldwide and always within Institute Warranty Limits
WWDSHEX
Weather working days, Sundays and holidays excluded
WWF
Australian Waterside Workers Federation
WWWW
WIBON, WCCON, WIFPON, WIPON
XPS
Extruded Polystyrene. Manufactured from styrene, is a thermal plastic material manufactured by a variety of extrusion processes. Polystyrene foam board and extruded foam sheet have properties that make it a frequent choice for thermal insulation, sheathing, roofing and building and construction application.
Xylene
Xylene, a colorless liquid, is an aromatic hydrocarbon of which there are several forms. Xylenes are used as solvents, as components of aviation fuel, and as raw materials for the manufacture of dyes, fibers and films. Of the different forms of xylenes, paraxylene is commercially the most important.
Xylenes
Xylene comes in three different isomers: ortho-xylene, meta-xylene, and para–xylene. The first and last of this threesome have important chemical uses. All of them, separately or together, make superior motor gasoline blendstock. Refinery reformate and steam cracker pyrolysis gasoline, when put through an aromatics recovery unit, yield all three, plus another eight carbon compound called ethylbenzene, in the form of mixed xylenes.
Yacht
A non cargo carrying vessel normally used for Leisure
Yacht Carrier, semi submersible
A semi submersible heavy load carrier specifically arranged for the carriage of yachts
Yard
Shipyard at which vessels are built.
Yaw
A temporary swing off course by a vessel, usually because of waves, but may be caused by poor steering, currents, or wind. The horizontal angular deviation of a vessel’s longitudinal axis from the desired line of track. The angular, oscillatory motion (rotation) about the ship vertical axis; to alternately swing to and fro off course, usually by wave action (EM 1110-2-1613).
Yawing
Ship Stability: is when the vessel rotates about the vertical (up-down) axis
YB
Yellow Book - onboard the ships on management
Yield
The quantity andor quality of derivatives a process can make, or actually makes, from a feedstock or raw material. The industry speaks of gasoline yields from CRUDE; ethylene yields from naphtha, VGO yields from long residue, light products yields from cat cracking, and so forth.
Yield slate
The breakdown of various derivatives from processing a feedstock or raw material. Typical yield slates could list the quantities of various fuels made from a grade of crude in a certain type of refinery, or basic petrochemicals from steam cracking a particular ethylene feedstock.
Z
Zulu (Greenwich Mean Time)
Zone Time
The local time zone for any longitude, as opposed to and usually expressed as a deviation from Greenwich Mean time (+1, -5, etc.).
ZUTC
Zulu (Greenwich Mean Time)
