Hazardous Products Regulations (SOR/2015-17)

SUBPART 16Corrosive to Metals

Definition

Definition of corrosive to metals

7.16 In this Subpart, corrosive to metals means, in relation to a mixture or substance, liable to damage or destroy metal by chemical action.

Classification in the Category of the Class

Marginal note:Category

7.16.1 A mixture or substance that is corrosive to metals is classified in the category of this hazard class, based on results from testing performed in accordance with sub-section 37.4 of Part III of the Manual of Tests and Criteria, in accordance with the following table:

SUBPART 17Combustible Dusts

Definition

Definition of combustible dust

7.17 In this Subpart, combustible dust means a mixture or substance that is in the form of finely divided solid particles that, upon ignition, is liable to catch fire or explode when dispersed in air.

Classification in the Category of the Class

Marginal note:Category

7.17.1 A combustible dust is classified in the category of this hazard class in accordance with the following table:

SUBPART 18Simple Asphyxiants

Definition

Definition of simple asphyxiant

7.18 In this Subpart, simple asphyxiant means any gas that is liable to cause asphyxiation by the displacement of air.

Classification in the Category of the Class

Marginal note:Category

7.18.1 A simple asphyxiant is classified in the category of this hazard class in accordance with the following table:

SUBPART 19[Repealed, SOR/2022-272, s. 36]

7.19 [Repealed, SOR/2022-272, s. 36]

7.19.1 [Repealed, SOR/2022-272, s. 36]

SUBPART 20Physical Hazards Not Otherwise Classified

Definition

Definition of physical hazard not otherwise classified

7.20 In this Subpart, physical hazard not otherwise classified means a physical hazard presented by a product, mixture, material or substance that is different from any other physical hazard addressed by any other Subpart in this Part and that has the characteristic of occurring by chemical reaction and resulting in the serious injury or death of a person at the time the reaction occurs.

Classification in the Category of the Class

Marginal note:Category

7.20.1 A product, mixture, material or substance is classified in the category of this hazard class in accordance with the following table:

SUBPART 21Chemicals Under Pressure

Definition

Marginal note:Definition of Chemicals Under Pressure

7.21 In this Subpart, chemicals under pressure means liquids or solids that are packaged in a receptacle — other than an aerosol dispenser — and that are pressurized with a gas at a gauge pressure of 200 kPa or more at 20°C but excludes any gas under pressure as defined in section 7.5.

Classification in a Category of the Class

Marginal note:Exclusions

• 7.21.1 (1) Any product that is classified in a category of the hazard class “Aerosols” must not be classified in any category of this hazard class.

• Marginal note:Categories

  (2) A chemical under pressure is classified in a category of this hazard class in accordance with the following table:

  	Column 1	Column 2
  Item	Category	Criteria
  1	Chemicals Under Pressure — Category 1	A chemical under pressure that contains ≥ 85.0% flammable components, by mass, and has a heat of combustion ≥ 20 kJ/g
  2	Chemicals Under Pressure — Category 2	A chemical under pressure that (a) contains > 1.0% flammable components, by mass, and has a heat of combustion < 20 kJ/g; or (b) contains < 85.0% flammable components, by mass, and has a heat of combustion ≥ 20 kJ/g
  3	Chemicals Under Pressure — Category 3	A chemical under pressure that contains ≤ 1.0% flammable components, by mass, and has a heat of combustion < 20 kJ/g

PART 8Health Hazard Classes

SUBPART 1Acute Toxicity

Definitions

Marginal note:Definitions

8.1 The following definitions apply in this Subpart.

acute toxicant

acute toxicant means a mixture or substance that is liable to cause acute toxicity, or a mixture or substance that, upon contact with water, releases a gaseous substance that is liable to cause acute toxicity. (toxique aigu)

acute toxicity

acute toxicity refers to serious adverse health effects, including death, occurring following

• (a) oral or dermal administration of a single dose of a mixture or substance, or multiple doses given within 24 hours; or

• (b) an inhalation exposure to a mixture or substance of four hours or of a duration that is converted to four hours in accordance with subsection 8.1.1(4). (toxicité aiguë)

dust

dust means solid particles that are suspended in a gas, usually air. (poussières)

mist

mist means liquid droplets that are suspended in the air. (brouillard)

Classification in a Category of the Class

Classification of Substances

Marginal note:LD₅₀ or LC₅₀ — associated range

• 8.1.1 (1) An acute toxicant that is a substance is classified, with respect to each applicable route of exposure, in a category of this hazard class in accordance with the tables to subsection (3) if it has an LD₅₀ by the oral or dermal exposure route, or an LC₅₀ by the inhalation exposure route, that falls into one of the ranges indicated in the applicable table to that subsection.

• Marginal note:Contact with water — gaseous substance

  (2) If an acute toxicant that is a substance is not classified in accordance with subsection (1) with respect to the inhalation route of exposure in a category of this hazard class in accordance with Table 3 to subsection (3) and, upon contact with water, the acute toxicant releases a gaseous substance that has an LC₅₀ that falls into one of the ranges indicated in that table, it is classified in accordance with that table with regard to that range.

• Marginal note:LD₅₀ or LC₅₀ not available

  (3) If an LD₅₀ by the oral or dermal exposure route or an LC₅₀ by the inhalation exposure route is not available, an acute toxicity point estimate must be established in accordance with the table to section 8.1.7, and the acute toxicant must be classified based on that acute toxicity point estimate, with respect to each applicable route of exposure, in a category of this hazard class in accordance with the following tables:

  	Column 1	Column 2
  Item	Category	Ranges for LD50 or for Acute Toxicity Point Estimates (mg/kg body weight)
  1	Acute Toxicity (Oral) — Category 1	≤ 5
  2	Acute Toxicity (Oral) — Category 2	> 5 and ≤ 50
  3	Acute Toxicity (Oral) — Category 3	> 50 and ≤ 300
  4	Acute Toxicity (Oral) — Category 4	> 300 and ≤ 2000

  	Column 1	Column 2
  Item	Category	Ranges for LD50 or for Acute Toxicity Point Estimates (mg/kg body weight )
  1	Acute Toxicity (Dermal) — Category 1	≤ 50
  2	Acute Toxicity (Dermal) — Category 2	> 50 and ≤ 200
  3	Acute Toxicity (Dermal) — Category 3	> 200 and ≤ 1000
  4	Acute Toxicity (Dermal) — Category 4	> 1000 and ≤ 2000

  	Column 1	Column 2	Column 3	Column 4
  		Ranges for LC50 or for Acute Toxicity Point Estimates
  Item	Category	Gases (ppmV)	Vapours (mg/l)	Dusts and Mists (mg/l)
  1	Acute Toxicity (Inhalation) — Category 1	≤ 100	≤ 0.5	≤ 0.05
  2	Acute Toxicity (Inhalation) — Category 2	> 100 and ≤ 500	> 0.5 and ≤ 2	> 0.05 and ≤ 0.5
  3	Acute Toxicity (Inhalation) — Category 3	> 500 and ≤ 2500	> 2 and ≤ 10	> 0.5 and ≤ 1
  4	Acute Toxicity (Inhalation) — Category 4	> 2500 and ≤ 20 000	> 10 and ≤ 20	> 1 and ≤ 5

• Marginal note:One-hour exposure period

  (4) For the purposes of Table 3 to subsection (3), the LC₅₀ is based on a four-hour exposure period. If existing acute inhalation toxicity data have been generated according to a one-hour exposure period, the LC₅₀ for gases and vapours must be divided by two, and the LC₅₀ for dusts and mists must be divided by four.