D.G. Cargo
Source:    Publish Time: 2011-04-08 19:54   5833 Views   Size:  16px  14px  12px
D.G. Cargo



Hazardous Materials (Dangerous Goods)



External packing of Dangerous Goods for shipments with exterior of carrying container

must be affixed with appropriate " DG Warning Label "


Packages containing dangerous goods must be durably marked with the correct 

technical name and with distinctive labels or stencils of the labels.


International Maritime Organization (IMO), which is a branch of the United 

Nations (UN), classifies dangerous goods into nine hazard classes.  The diamond 

labels denote the hazards involved by means of colors and symbols.


Labels for packages should not be less than 10 cms. x 10 cms. (4" x 4") except 

in the case of packages which, because of their size, can only bear smaller labels.


The class number should appear in the bottom corner of the label. The use of 

the text shown on the shipping labels and of further descriptive text is optional. 

However, for Class 7 substances the text should always appear on the labels.


Class 3

The flammable liquid (Class 3) has three divisions differentiated by the flash point 

of liquid---the lowest temperature at which vapor of an inflammable liquid catches 

fire in the air when a flame is applied.

The word "flammable" is the same as "inflammable" meaning easily set on fire.


Class 4 Division 2

The spontaneously combustible (4.2---Class 4 Division 2) substances are liable to 

combustion, without direct application of flame or spark, due to an internal rise of 

temperature to the ignition point, usually caused by a slow oxidation process.


Class 4 Division 3

The dangerous when wet (4.3---Class 4 Division 3) substances when in contact with 

water will emit flammable gas.


Class 7

The radioactive (Class 7) non-fissile materials have three categories (I, II and III) 

determined by the radiation level of the package. Class 7 has no divisions.


Class 8

The corrosive (Class 8) substances cause damage to the skin and/or metal.


Class 9

Class 9 covers miscellaneous hazardous materials not covered by other classes, for 

example magnetized material which poses a danger to the aircraft compass unit.


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