§2.29 Packing groups

2.29 (1) When a substance is known to be included in Class 6.1 and that knowledge is based on documentary evidence published in technical journals or government publications and testing is not done to determine the packing group, the substance must be included in Packing Group I.

(2) Substances that are included in Class 6.1 due to

(a) oral toxicity are included in one of the following packing groups:

(i) Packing Group I, if the LD₅₀ (oral) is less than or equal to 5 mg/kg,

(ii) Packing Group II, if the LD₅₀ (oral) is greater than 5 mg/kg but less than or equal to 50 mg/kg, or

(iii) Packing Group III, if the LD₅₀ (oral) is greater than 50 mg/kg but less than or equal to 300 mg/kg;

(b) dermal toxicity are included in one of the following packing groups:

(i) Packing Group I if the LD₅₀ (dermal) is less than or equal to 50 mg/kg,

(ii) Packing Group II if the LD₅₀ (dermal) is greater than 50 mg/kg but less than or equal to 200 mg/kg, or

(iii) Packing Group III if the LD₅₀ (dermal) is greater than 200 mg/kg but less than or equal to 1 000 mg/kg;

(c) inhalation toxicity by dust or mist are included in one of the following packing groups:

(i) Packing Group I if the LC₅₀ (inhalation) is less than or equal to 0.2 mg/L,

(ii) Packing Group II if the LC₅₀ (inhalation) is greater than 0.2 mg/L but less than or equal to 2 mg/L, or

(iii) Packing Group III if the LC₅₀ (inhalation) is greater than 2 mg/L but less than or equal to 4 mg/L; or

(d) inhalation toxicity by vapour are included in one of the following packing groups, where “V” is the saturated vapour concentration in millilitres per cubic metre of air at 20°C and at 101.3 kPa:

(i) Packing Group I, if

(A) V is greater than or equal to 10 multiplied by the LC₅₀, and

(B) the LC₅₀ is less than or equal to 1,000 mL/m³,

(ii) Packing Group II, if

(A) V is greater than or equal to the LC₅₀,

(B) the LC₅₀ is less than or equal to 3,000 mL/m³, and

(C) the criteria for Packing Group I are not met, or

(iii) Packing Group III, if

(A) V is greater than or equal to 0.2 multiplied by the LC₅₀,

(B) the LC₅₀ is less than or equal to 5,000 mL/m³, and

(C) the criteria for inclusion in Packing Group I or II are not met.

SOR/2008-34, s. 35; SOR/2012-245, s. 16(E)