Hazardous Products Regulations — 8.4.1
Respiratory sensitizer — category 8.4.1 (1) A substance that is a respiratory sensitizer is classified in the category of this hazard class in accordance with the following table: TABLE Column 1 Column 2 Item Category Criteria 1 Respiratory Sensitizer — Category 1 A substance (a) that, according to human data, leads to specific respiratory hypersensitivity; or (b) in respect of which animal data acquired from scientifically validated methods for the evaluation of respiratory sensitization demonstrate positive results Respiratory sensitizer — subcategories (2) A substance classified in the category “Respiratory Sensitizer — Category 1” under subsection (1) is, if the applicable data are available, further classified in the subcategory “Respiratory Sensitizer — Category 1A” or in the subcategory “Respiratory Sensitizer — Category 1B” in accordance with the following table: TABLE Column 1 Column 2 Column 3 Item Category Subcategory Criteria 1 Respiratory Sensitizer — Category 1 Respiratory Sensitizer — Category 1A A substance (a) that, according to human data, leads to a high frequency of occurrence of respiratory sensitization; or (b) in respect of which animal data support the probability of a high respiratory sensitization rate in humans 2 Respiratory Sensitizer — Category 1 Respiratory Sensitizer — Category 1B A substance (a) that, according to human data, leads to a low to moderate frequency of occurrence of respiratory sensitization; or (b) in respect of which animal data support the probability of a low to moderate respiratory sensitization rate in humans Skin sensitizer — category (3) A substance that is a skin sensitizer is classified in the category of this hazard class in accordance with the following table: TABLE Column 1 Column 2 Item Category Criteria 1 Skin Sensitizer — Category 1 A substance (a) that, according to human data, leads to skin sensitization; or (b) in respect of which animal data acquired from scientifically validated methods for the evaluation of skin sensitization demonstrate positive results Skin sensitizer — subcategories (4) A substance classified in the category “Skin Sensitizer — Category 1” under subsection (3) is, if the applicable data are available, further classified in the subcategory “Skin Sensitizer — Category 1A” or in the subcategory “Skin Sensitizer — Category 1B” in accordance with the following table: TABLE Column 1 Column 2 Column 3 Item Category Subcategory Criteria 1 Skin Sensitizer — Category 1 Skin Sensitizer — Category 1A A substance (a) that, according to human data, leads to a high frequency of occurrence of skin sensitization; or (b) in respect of which animal data acquired from scientifically validated methods for the evaluation of skin sensitization support the probability of a high skin sensitization rate in humans 2 Skin Sensitizer — Category 1 Skin Sensitizer — Category 1B A substance (a) that, according to human data, leads to a low to moderate frequency of occurrence of skin sensitization; or (b) in respect of which animal data acquired from scientifically validated methods for the evaluation of skin sensitization support the probability of a low to moderate skin sensitization rate in humans