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Hazardous Products Regulations

Version of section 7.12.1 from 2015-02-11 to 2022-12-14:


Marginal note:Exclusions

  •  (1) The following liquids or solids need not be classified in any category of this hazard class:

    • (a) those that have a chemical structure that does not contain metals or metalloids;

    • (b) those that have been shown, through accumulated experience in production or handling, not to react with water; and

    • (c) those that are soluble in water to form a stable mixture.

  • Marginal note:Categories

    (2) A liquid or solid which, in contact with water, emits flammable gases is classified in a category of this hazard class, based on results from testing performed in accordance with test N.5 of sub-section 33.4.1.4 of Part III of the Manual of Tests and Criteria, in accordance with the following table:

    TABLE

    Column 1Column 2
    ItemCategoryCriteria
    1Substances and Mixtures Which, in Contact with Water, Emit Flammable Gases — Category 1

    A liquid or solid that

    • (a) reacts with water at ambient temperature and produces a gas that is liable to ignite spontaneously;

    • (b) reacts with water at ambient temperature such that the rate of evolution of flammable gas is ≥ 10 l/kg of liquid or solid over any one minute; or

    • (c) reacts with water at ambient temperature to ignite spontaneously in any step of the test procedure

    2Substances and Mixtures Which, in Contact with Water, Emit Flammable Gases — Category 2A liquid or solid that reacts with water at ambient temperature such that the maximum rate of evolution of flammable gas is ≥ 20 l/kg of liquid or solid per hour
    3Substances and Mixtures Which, in Contact with Water, Emit Flammable Gases — Category 3A liquid or solid that reacts with water at ambient temperature such that the maximum rate of evolution of flammable gas is ≥ 1 l/kg of liquid or solid per hour

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