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2.19 (1) Flammable liquids included in Class 3, Flammable Liquids, are included in one of the following packing groups:
(a) Packing Group I, if they have an initial boiling point of 35°C or less at an absolute pressure of 101.3 kPa and any flash point;
(b) Packing Group II, if they have an initial boiling point greater than 35°C at an absolute pressure of 101.3 kPa and a flash point less than 23°C; or
(c) Packing Group III, if the criteria for inclusion in Packing Group I or II are not met.
(2) Despite subsection (1), for dangerous goods included in Class 3, Flammable Liquids,
(a) when the packing group is unknown, the consignor may include the dangerous goods in Packing Group I; or
(b) when the packing group is reasonably believed or is known to be Packing Group II or III, the consignor may include the dangerous goods in Packing Group II but, if the substance has the same characteristics as UN1203, GASOLINE, it may also be transported as Packing Group II.
(3) Despite paragraph (1)(b), a viscous flammable liquid that has a flash point less than 23°C may be included in Packing Group III if
(a) the liquid or any separated solvent does not meet the criteria for inclusion in Class 6.1 or Class 8;
(b) less than 3% of the clear solvent layer separates when the solvent separation test set out in subsection 32.5.1 of Part III of the Manual of Tests and Criteria is carried out;
(c) the viscosity and flash-point of the liquid are in accordance with the table to this subsection; and
(d) the viscosity test is carried out in accordance with the procedure set out in subsection 32.4 of Part III of the Manual of Tests and Criteria or the procedure set out in ISO 2431.
| Kinematic viscosity extrapolated ν (at near-zero shear rate) mm2/s at 23°C | Flow time t (seconds) | Jet diameter (mm) | Flash point, closed cup (°C) |
| 20 < ν ≤ 80 | 20 < t ≤ 60 | 4 | above 17 |
| 80 < ν ≤ 135 | 60 < t ≤ 100 | 4 | above 10 |
| 135 < ν ≤ 220 | 20 < t ≤ 32 | 6 | above 5 |
| 220< ν ≤ 300 | 32 < t ≤ 44 | 6 | above -1 |
| 300< ν ≤ 700 | 44 < t ≤ 100 | 6 | above -5 |
| 700< ν | 100 < t | 6 | No limit |
(3.1) If a liquid referred to in subsection (3) is a non-Newtonian substance or a flow cup method of viscosity determination is unsuitable, a variable shear-rate viscometer must be used to determine the dynamic viscosity coefficient of the liquid, at 23°C, at a number of shear rates. The values obtained must be plotted against shear rate and then extrapolated to zero shear rate. The dynamic viscosity value thus obtained, divided by the density, gives the apparent kinematic viscosity at near-zero shear rate.
SOR/2008-34, s. 33(F); SOR/2017-137, s. 19