Hazardous Products Regulations
Marginal note:Exclusions
7.7.1 (1) Any product that is classified in a category of the hazard class “Flammable Aerosols” need not be classified in any category of this hazard class.
Marginal note:Categories
(2) A flammable solid that is a readily combustible solid is classified in a category of this hazard class, based on results from testing performed in accordance with the burning rate test in sub-section 33.2.1 of Part III of the Manual of Tests and Criteria, in accordance with the following table:
Column 1 Column 2 Item Category Criteria 1 Flammable Solids — Category 1 A solid that is
(a) other than a metal powder, in respect of which
(i) the burning time is < 45 s or the burning rate is > 2.2 mm/s, and
(ii) the wetted zone does not stop the fire or stops the fire for less than 4 min; or
(b) a metal powder, in respect of which the burning time is ≤ 5 min
2 Flammable Solids — Category 2 A solid that is
(a) other than a metal powder, in respect of which
(i) the burning time is < 45 s or the burning rate is > 2.2 mm/s, and
(ii) the wetted zone stops the fire for at least 4 min; or
(b) a metal powder, in respect of which the burning time is > 5 min and ≤ 10 min
Marginal note:Fire through friction
(3) A flammable solid that is a solid that is liable to cause or contribute to fire through friction is classified in the category “Flammable Solids — Category 2”.
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