Hazardous Products Regulations (SOR/2015-17)

Regulations are current to 2018-10-03 and last amended on 2018-04-04. Previous Versions

PART 7Physical Hazard Classes (continued)

SUBPART 16Corrosive to Metals

Definition

Definition of corrosive to metals

 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

 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:

TABLE

ItemColumn 1Column 2
CategoryCriteria
1Corrosive to Metals — Category 1A mixture or substance that has a corrosion rate on either steel or aluminium surfaces that is > 6.25 mm per year at a test temperature of 55°C

SUBPART 17Combustible Dusts

Definition

Definition of combustible dust

 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

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

TABLE

ItemColumn 1Column 2
CategoryCriteria
1Combustible Dusts — Category 1

A mixture or substance that

  • (a) has been shown to, upon ignition, catch fire or explode when dispersed in air or an other oxidizing medium; or

  • (b) is classified in a category of the hazard class “Flammable Solids” and 5.0% or more of its composition by weight is a flammable solid and has a particle size ≤ 500 µm

SUBPART 18Simple Asphyxiants

Definition

Definition of simple asphyxiant

 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

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

TABLE

ItemColumn 1Column 2
CategoryCriteria
1Simple Asphyxiants — Category 1A gas that is a simple asphyxiant

SUBPART 19Pyrophoric Gases

Definition

Definition of pyrophoric gas

 In this Subpart, pyrophoric gas means any mixture or substance in a gaseous state that is liable to ignite spontaneously in air at a temperature of 54°C or less.

Classification in the Category of the Class

Marginal note:Category

 A pyrophoric gas is classified in the category of this hazard class in accordance with the following table:

TABLE

ItemColumn 1Column 2
CategoryCriteria
1Pyrophoric Gases — Category 1A gas that is a pyrophoric gas

SUBPART 20Physical Hazards Not Otherwise Classified

Definition

Definition of physical hazard not otherwise classified

 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

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

TABLE

ItemColumn 1Column 2
CategoryCriteria
1Physical Hazards Not Otherwise Classified — Category 1A product, mixture, material or substance that presents a physical hazard not otherwise classified

PART 8Health Hazard Classes

SUBPART 1Acute Toxicity

Definitions

Marginal note:Definitions

 The following definitions apply in this Subpart.

acute toxicant

toxique aigu

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

toxicité aiguë

acute toxicity refers to adverse effects 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

poussières

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

mist

brouillard

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

  •  (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) In addition to subsection (1), an acute toxicant that is a substance is classified with respect to the inhalation route of exposure in a category of this hazard class in accordance with Table 3 to subsection (3) if upon contact with water, it releases a gaseous substance that has an LC50 that falls into one of the ranges indicated in that table, unless that substance is already classified in a category of this hazard class for the inhalation route of exposure that represents a more severe hazard.

  • 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:

    TABLE 1

    Oral Exposure Route

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

    TABLE 2

    Dermal Exposure Route

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

    TABLE 3

    Inhalation Exposure Route

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

 
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