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Part 2 - Classification

Dangerous Goods



Question

What do the letters « N.O.S.» mean?

Answer

N.O.S. means « Not Otherwise Specified ». For example, even though gasoline is a flammable liquid, the shipping name « FLAMMABLE LIQUID, N.O.S. » cannot be used because gasoline is otherwise specified.



Question

Why is Molten Sulphur considered a Class 4.1 "Flammable Solid", when it is not solid and neither is it flammable when it becomes solid?

Answer

The classification for molten sulphur is taken from the UN Model Regulations. The terms "liquid" and "solid" are defined in the Transportation of Dangerous Goods Regulations and these definitions are also based on the UN Model Regulations. Molten sulphur is loaded and unloaded in a molten state, is transported at an elevated temperature and solidifies after loading; all of which explains the shipping name as well as the risks associated with its transport.

Date modified:
2012-02-15