GHS Classification Guidance for the Japanese Government

2-3-3 Flammable Aerosols
(1)Definitions
Definitions of flammable of aerosols in UN GHS are as follows, and they are adopted in this
guidance.
【GHS 2 nd revised edition】(2.3.1)
Aerosols, this means aerosol dispensers, are any non-refillable receptacles made of
metal,glass or plastics and containing a gas compressed, liquefied or dissolved under pressure,
with or w ithout a liquid, paste or pow der, and fitted with a release device allowing the contents
to be ejected as solid or liquid particles in suspension in a gas, as a foam, paste or powder or in a
liquid state or in a gaseous state.
(2) Classification criteria in GHS
【GHS 2 nd revised edition】 (2.3.2)
2.3.2.1 A erosols should be considered for classification as flammable if they contain
any component which is classified as flammable according to the GHS criteria, i.e.:
Flammable liquids (see Chapter 2.6);
Flammable gases (see Chapter 2.2);
Flammable solids (see Chapter 2.7).
NOTE: Flammable components do not cover pyrophoric, self-heating or water-reactive
substances and mixtures because such components are never used as aerosol contents.
2.3.2.2 A flammable aerosol is classified in one of the two categories for this Class
on the basis of its components, of its chemical heat of combustion and, if applicable, of
the results of the foam test (for foam aerosols) and of the ignition distance test and
enclosed space test (for spray aerosols). See decision logic in 2.3.4.1.
(2.3.4.1 Decision logic)
To classify a flammable aerosol, data on its flammable components, on its chemical heat of
combustion and, if applicable, the results of the foam test (for foam aerosols) and of the ignition
distance test and enclosed space test (for spray aerosols) are required.
The GHS classification criteria are summarized as follows:
Category 1:・aerosols whose content of flammable components is 85% or more and whose
heat of combustion is 30 kJ/g or larger, or
・spray aerosols for which ignition occurs at a distance of 75 cm or more in the
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