2.2.41.3

list of collective entries

a metals and metal alloys in powdered or other flammable form, liable to spontaneous combustion, are substances

of class 4.2.

b metals and metal alloys in powdered or other flammable form, which in contact with water, emit flammable

gases, are substances of class 4.3.

c metals hydrides which, in contact with water, emit flammable gases, are substances of class 4.3. aluminium

borohydride or aluminium borohydride in devices are substances of class 4.2, un no. 2870.