GHS Classification Guidance for the Japanese Government

Table 2-1 Classification of Physical Hazards based on physical, chemical states and chemical
structure
Section Hazard Class Gas Liquids Solid Classifiable chemical structure
Substances containing chemical
2-3-1 Explosives X ○ ○ groups related to explosibility in
their molecules(see 2-2-6)
2-3-2 Flammable Gases ○ X X
2-3-3
Flammable
Aerosols
○ ○ ○
2-3-4 Oxidizing Gases △ X X
2-3-5
Gases Under
Pressure
○ X X
2-3-6 Flammable Liquids X ○ X
2-3-7 Flammable Solid X X ○
(Powdered, granular, or pasty
substances are to be assessed.)
2-3-8
Self-reactive
Substances and
Mixtures
X ○ ○
2-3-9 Pyrophoric Liquids X ○ X
2-3-10 Pyrophoric Solids
Self-heating
X X ○
2-3-11 Substances
Mixtures
Substances and
and X △ ○
2-3-12
mixtures which,in
contact with
water,emit
flammable gases
X ○ ○
2-3-13 Oxidizing Liquids X ○ X
2-3-14 Oxidizing Solids X X ○
2-3-15 Organic Peroxides X ○ ○
2-3-16 Corrosive to
Metals
△ ○ △
20
Substances containing chemical
groups related to explosivity as
well as chemical groups related
to self-reactivity in their
molecules. (see 2-2-6, 2-2-7)
Substances containing metals or
semimetals (Si,Ge,As,Sb,Bi,
etc.)
Substances containing oxygen,
fluorine, or chlorine, any of
which are bound to elements
other than carbon and hydrogen
Organic compounds containing
–O–O– structure, excluding
those whose content of active
oxygen (%) meet criteria in
2.15.2.1 (a) and (b) of the second
revised edition of UN GHS
○:Classifiable, X:Not classifiable, △ : Classifiable, but no test method is designated