The following definitions apply unless expressly
provided otherwise. (Additional definitions are given in individual
chapters).
1.3.1
Accommodation spaces are those spaces used for public spaces, corridors,
lavatories, cabins, offices, hospitals, cinemas, games and hobbies rooms, barber shops,
pantries containing no cooking appliances and similar spaces. Public spaces are
those portions of the accommodation spaces which are used for halls, dining rooms,
lounges and similar permanently enclosed spaces.
1.3.2
Administration means the Government of the State whose flag the ship is entitled
to fly. For Administration (Port) see Port Administration.
1.3.3
Anniversary date means the day and the month of each year which will correspond
to the date of expiry of the International Certificate of Fitness for the Carriage of
Dangerous Chemicals in Bulk.
1.3.4
Boiling point is the temperature at which a product exhibits a vapour pressure
equal to the atmospheric pressure.
1.3.5
Breadth (B) means the maximum breadth of the ship, measured amidships to the
moulded line of the frame in a ship with a metal shell and to the outer surface of the
hull in a ship with a shell of any other material. The breadth (B) shall be
measured in metres.
1.3.6
Cargo area is that part of the ship that contains cargo tanks, slop tanks, cargo
pump-rooms including pump-rooms, cofferdams, ballast or void spaces adjacent to cargo
tanks or slop tanks and also deck areas throughout the entire length and breadth of the
part of the ship over the above-mentioned spaces. Where independent tanks are installed
in hold spaces, cofferdams, ballast or void spaces at the after end of the aftermost
hold space or at the forward end of the forward-most hold space are excluded from the
cargo area.
1.3.7
Cargo pump-room is a space containing pumps and their accessories for the
handling of the products covered by the Code.
1.3.8
Cargo service spaces are spaces within the cargo area used for workshops, lockers
and storerooms of more than 2 m2 in area, used for cargo-handling equipment.
1.3.9
Cargo tank is
the envelope designed to contain the cargo.
1.3.10
Chemical tanker is
a cargo ship constructed or adapted and used for the carriage in bulk
of any liquid product listed in chapter 17.
1.3.11
Cofferdam is
the isolating space between two adjacent steel bulkheads or decks.
This space may be a void space or a ballast space.
1.3.12
Control stations are those spaces in which shipʹs radio or main navigating
equipment or the emergency source of power is located or where the fire-recording or
fire-control equipment is centralized. This does not include special fire-control
equipment which can be most practically located in the cargo area.
1.3.13
Dangerous chemicals means
any liquid chemicals designated as presenting a safety hazard, based
on the safety criteria for assigning products to chapter
17.
1.3.14
Density is
the ratio of the mass to the volume of a product, expressed in terms
of kilograms per cubic metre. This applies to liquids, gases and vapours.
1.3.15
Explosive/flammability
limits/range are the conditions defining the state of fuel-oxidant
mixture at which application of an adequately strong external ignition
source is only just capable of producing flammability in a given test
apparatus.
1.3.16
Flashpoint is
the temperature in degrees Celsius at which a product will give off
enough flammable vapour to be ignited. Values given in the Code are
those for a “closed-cup test” determined by an approved
flashpoint apparatus.
1.3.17
Gas-freeing means the process where a portable or fixed ventilation system is
used to introduce fresh air into a tank in order to reduce the concentration of
hazardous gases or vapours to a level safe for tank entry.
1.3.18
Hold space is the space enclosed by the ship’s structure in which an independent
cargo tank is situated.
1.3.19
Independent means that a piping or venting system, for example, is in no way
connected to another system and that there are no provisions available for the potential
connection to other systems.
1.3.20
Length (L) means 96% of the total length on a waterline at 85% of the least
moulded depth measured from the top of the keel, or the length from the foreside of the
stem to the axis of the rudder stock on that waterline, if that be greater. In ships
designed with a rake of keel, the waterline on which this length is measured shall be
parallel to the designed waterline. The length (L) shall be measured in metres.
1.3.21
Machinery spaces of category A are those spaces and trunks to such spaces which
contain:
-
.1 internal-combustion machinery used for main propulsion; or
-
.2 internal-combustion machinery used for purposes other than main
propulsion where such machinery has in the aggregate a total power output of not
less than 375 kW; or
-
.3 any oil-fired boiler or oil fuel unit or any oil-fired equipment
other than boilers, such as inert gas generators, incinerators, etc.
1.3.22
Machinery spaces are all machinery spaces of category A and all other spaces
containing propelling machinery, boilers, oil fuel units, steam and internal-combustion
engines, generators and major electrical machinery, oil filling station, refrigerating,
stabilizing, ventilation and air-conditioning machinery, and similar spaces, and trunks
to such spaces.
1.3.23
MARPOL
means the International Convention for the Prevention of Pollution from Ships,
1973, as modified by the Protocol of 1978 relating thereto and by the Protocol of 1997,
as amended.
1.3.24
Noxious Liquid Substance means any substance indicated in the Pollution Category
column of chapters 17 or 18 of
the International Bulk Chemical Code, or the current MEPC.2/Circular or provisionally
assessed under the provisions of regulation 6.3 of MARPOL Annex II as falling into categories X, Y
or Z.
1.3.25
Oil fuel unit is the equipment used for the preparation of oil fuel for delivery
to an oil-fired boiler, or equipment used for the preparation for delivery of heated oil
to an internal-combustion engine, and includes any oil pressure pumps, filters and
heaters dealing with oil at a gauge pressure of more than 0.18 MPa.
1.3.26
Organization is the International Maritime Organization (IMO).
1.3.27
Permeability of a space means the ratio of the volume within that space which is
assumed to be occupied by water to the total volume of that space.
1.3.28
Port Administration means the appropriate authority of the country in the port of
which the ship is loading or unloading.
1.3.29
Products is the collective term used to cover both Noxious Liquid Substances and
Dangerous Chemicals.
1.3.30
Pump-room is a space, located in the cargo area, containing pumps and their
accessories for the handling of ballast and oil fuel.
1.3.31
Purging means the introduction of inert gas into a tank which is already in an
inert condition with the object of further reducing the oxygen content; and/or reducing
the existing hydrocarbon or other flammable vapours content to a level below which
combustion cannot be supported if air is subsequently introduced into the tank.
1.3.33
Recognized standards are applicable international or national standards
acceptable to the Administration or standards laid down and maintained by an
organization which complies with the standards adopted by the Organization and which is
recognized by the Administration.
1.3.34
Reference temperature is the temperature at which the vapour pressure of the
cargo corresponds to the set pressure of the pressure-relief valve.
1.3.35
Separate means that a cargo piping system or cargo vent system, for example, is
not connected to another cargo piping or cargo vent system.
1.3.36
Service spaces are those spaces used for galleys, pantries containing cooking
appliances, lockers, mail and specie rooms, storerooms, workshops other than those
forming part of the machinery spaces and similar spaces and trunks to such spaces.
1.3.37
SOLAS
means the International Convention for the Safety of Life at Sea, 1974, as amended.
1.3.38
Vapour pressure is the equilibrium pressure of the saturated vapour above a
liquid expressed in Pascals (Pa) at a specified temperature.
1.3.39
Void space is an enclosed space in the cargo area external to a cargo tank, other
than a hold space, ballast space, oil fuel tank, cargo pump-room, pump-room, or any
space in normal use by personnel.