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Dangerous Goods – Definitions

Auto-ignition temperature – is the lowest temperature at which a substance will start to burn without the aid of an external flame. Spontaneous combustion begins, provided that conditions are right, when auto-ignition temperature is attained.


Carrier – means any person’s organization, or government, undertaking the transport of dangerous goods by any means of transport. This includes both carriers for hire or reward (known as common or contract carriers) and carriers on own account (known as private carriers).


Control temperature – means the maximum temperature at which certain substances (such as organic peroxides and self-reactive and related sub- stances) can be safely transported during a prolonged period of time.


Cylinders – are transportable pressure receptacles of a water capacity not exceeding 150 I.


Dangerous goods – means substances, materials and articles covered by the IMDG Code.


Defined deck area – means that area of the weather deck of a ship or of a vehicle deck of a Roll-on, Roll-off (Ro-Ro) ship which is allocated for the stowage of dangerous goods.


Emergency temperature – means that temperature at which emergency procedures shall be implemented.


Flammable liquid – is a liquid having a flash point lower than 37.8°C. A combustible liquid is a liquid having a flash point of 37.8°C or above, e.g. gasoline is a flammable liquid, whereas kerosene is a combustible liquid.


Flammable range – the limits of flammable (explosive) range, in the range between the minimum and the maximum concentrations of vapour in air which forms a flammable (explosive) mixture. Usually abbreviated to LFL (lower flammable limit) and UFL (upper flammable limit). These are synonymous with the lower and upper explosive limits.



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