2.18 (1) Substances that are liquids or liquids containing solids in solution or suspension are included in Class 3, Flammable Liquids, if they

(b) if the mixture contains more than one gas with an LC50 less than or equal to the toxic limit (called “Gas A”, “Gas B”, etc.),

Dg Class4

2.17 To determine the LC50 of a mixture of gases when the LC50 of each of the gases is known, use 5 000 mL/m3 as the toxic limit and,

(a) polymerizing substance that is in a small means of containment prescribed by TP 14850 or Chapter 6.1 of the UN Recommendations or in an intermediate bulk container (IBC) and whose self-accelerating polymerization temperature (SAPT) is 50°C or less in the small means of containment or IBC; and

Class 3flammable liquids list

(iii) solid desensitized explosives, which are solid explosives desensitized through wetting with water or alcohols or diluted with other substances to form a homogeneous solid mixture to suppress their explosive properties so that they are not included in Class 1, Explosives,

(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.

(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;

(ii) have a flammability range with air of at least 12 percentage points determined in accordance with tests or calculations in ISO 10156;

(a) in Class 2.1, Flammable Gases, if the dangerous goods contain at least 85% by mass of flammable components and the chemical heat of combustion is greater than or equal to 30 kJ/g; or

(2) The exemption set out in paragraph (1)(d) applies only if the light bulbs are packaged so that any pieces of a ruptured bulb are contained by the packaging.

(i) pyrophoric substances that spontaneously ignite within 5 minutes after coming into contact with air, as determined in accordance with section 2.4.3.2 of Chapter 2.4 of the UN Recommendations, and

2.21.1 A person must not offer for transport, handle or transport the following polymerizing substances unless they are stabilized by temperature control:

(b) Class 2.2, Non-flammable and Non-toxic Gases, which consists of gases that are transported at an absolute pressure greater than or equal to 280 kPa at 20°C, or as refrigerated liquids, and that are not included in Class 2.1, Flammable Gases, or Class 2.3, Toxic Gases; and

Class 3flammable liquids transportation

(a) has a self-accelerating polymerization temperature (SAPT) that is less than or equal to 75°C under the conditions in which the substance or mixture is to be transported, with or without chemical stabilization as offered for transport, and in the means of containment in which the substance or mixture is to be transported;

(a) if the mixture contains only one gas with an LC50 less than or equal to the toxic limit (called “Gas A”), use the following calculation:

Flammable liquid3meaning

(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;

(3) The dangerous goods must be classified in accordance with section 31 of Part III of the Manual of Tests and Criteria.

DG Class9

2.11 Explosives are divided into 13 compatibility groups as described in Appendix 2, Description of Compatibility Groups, Class 1, Explosives, to this Part.

(i) determine the contributing number (CN) of each of the gases with an LC50 less than or equal to the toxic limit using the formula

(b) in Class 2.2, Non-flammable and Non-toxic Gases, if the dangerous goods contain not more than 1% by mass of flammable components and the heat of combustion is less than 20 kJ/g.

Class 3flammable liquid storage requirements

(2) Despite paragraph (1)(a), liquids that have a flash point greater than 35°C are not included in Class 3, Flammable Liquids, if they

(c) Class 4.3, Water-reactive Substances, which consists of substances that, in tests performed in accordance with section 2.4.4.2 of Chapter 2.4 of the UN Recommendations, emit a flammable gas at a rate greater than 1 L/kg of substance per hour or spontaneously ignite at any step in the test procedure.

(i) are known to be toxic or corrosive to humans according to CGA P-20, ISO Standard 10298 or other documentary evidence published in technical journals or government publications, or

(ii) self-heating substances that, when in large amounts (kilograms), spontaneously ignite on contact with air after long periods (hours or days), as determined in accordance with section 2.4.3.2 of Chapter 2.4 of the UN Recommendations; and

(iv.1) polymerizing substances that, without stabilization, are liable to undergo a strongly exothermic reaction resulting in the formation of larger molecules or resulting in the formation of polymers under conditions normally encountered in transport,

(a) do not sustain combustion, as determined in accordance with the sustained combustibility test referred to in section 2.3.1.3 of Chapter 2.3 of the UN Recommendations;

Dg Class2

(b) designed to produce an explosive or pyrotechnic effect by heat, light, sound, gas or smoke or a combination of those means as a result of non-detonative, self-sustaining exothermic chemical reactions.

(vi) are in the list of currently assigned self-reactive substances in section 2.4.2.3.2.3 of Chapter 2.4 of the UN Recommendations;

(2) For the purposes of subparagraph (1)(a)(iv.1), a substance is considered to be a polymerizing substance of Class 4.1 if it

(6) The dangerous goods are forbidden for transport when they are included in Packing Group I for toxicity or corrosiveness.

Class 3dangerous goods examples

(a) have a flash point less than or equal to 60ºC using the closed-cup test method referred to in Chapter 2.3 of the UN Recommendations; 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.

(b) a polymerizing substance that is in a large means of containment that is not an IBC and whose SAPT is 45°C or less in the large means of containment.

(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

(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

2.20 Substances are included in Class 4 if they are flammable solids, substances liable to spontaneous combustion or substances that on contact with water emit flammable gases (water-reactive substances) and meet the criteria for inclusion in one of the divisions and packing groups of Class 4.

(ii) combine the contributing numbers (CN) of each gas with an LC50 less than or equal to the toxic limit using the formula

(c) Class 1.3, fire hazard and either a minor blast hazard or a minor projection hazard or both but not a mass explosion hazard;

(b) are intended or expected to be at a temperature that is greater than or equal to their flash point at any time while the substances are in transport.

(a) capable, by chemical reaction, of producing gas at a temperature, pressure and speed that would damage the surroundings; or

(5) The dangerous goods must have a subsidiary class of 6.1, Toxic Substances, or Class 8, Corrosive Substances, if the dangerous goods – other than the propellant to be ejected from the aerosol container – are included in Class 6.1, Toxic Substances, Packing Groups II or III, or Class 8, Corrosive Substances, Packing Groups II or III.

(C) a self-accelerating decomposition temperature (SADT) that is greater than 75°C for a 50 kg means of containment, as determined in accordance with section 2.4.2.3.4 of Chapter 2.4 of the UN Recommendations,

(iv) self-reactive substances that are liable to undergo a strongly exothermic decomposition even without the participation of oxygen (air), as determined in accordance with section 2.4.2.3 of Chapter 2.4 of the UN Recommendations, but Class 4.1 does not include substances that have

(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.

2.14.2 (1) These Regulations, except for Part 1 (Coming into Force, Repeal, Interpretation, General Provisions and Special Cases) and Part 2 (Classification) do not apply to gases included in Class 2.2, Non-flammable and Non-toxic Gases that are contained