Transportation of Dangerous Goods Regulations — 1.4
is dissolved in a solvent. ( gaz ) gross mass means (a) for a means of containment, the mass of the means of containment and all of its contents; or (b) for a quantity of dangerous goods, the gross mass of all minimum required means of containment used to contain the dangerous goods. ( masse brute ) import [Repealed, SOR/2023-155, s. 4] infectious substance means a substance known or reasonably believed to contain viable micro-organisms such as bacteria, viruses, rickettsia, parasites, fungi and other agents such as prions that are known or reasonably believed to cause disease in humans or animals and that are listed in Appendix 3 to Part 2 (Classification) or that exhibit characteristics similar to a substance listed in Appendix 3. ( matière infectieuse ) inland voyage has the same meaning as in section 1 of the Vessel Safety Certificates Regulations . ( voyage en eaux internes ) in standard means that a means of containment meets the requirements set out in section 5.2 of Part 5 (Means of Containment). ( en règle ) in transport means that a person has possession of dangerous goods for the purposes of transportation or for the purposes of storing them in the course of transportation. ( en transport ) large means of containment means a means of containment with a capacity greater than 450 L. ( grand contenant ) LC 50 means the lowest concentration of gas, vapour, mist or dust that, when administered by continuous inhalation to both male and female young adult albino rats for one hour, results in the death within 14 days of one half of the animals. ( CL 50 ) LD 50 (dermal) means the lowest amount of a substance that, when administered by continuous contact with the bare skin of both male and female young adult albino rabbits for 24 hours, results in the death within 14 days of one half of the animals. ( DL 50 (absorption cutanée) ) LD 50 (oral) means the lowest amount of a substance that, when administered by mouth to both male and female young adult albino rats, results in the death within 14 days of one half of the animals. ( DL 50 (ingestion) ) liquid means a substance that (a) has a melting point less than or equal to 20°C at an absolute pressure of 101.3 kPa; or (b) is a viscous substance for which a specific melting point cannot be determined but that is determined to be a liquid in accordance with ASTM D 4359. ( liquide ) lithium content means the mass of lithium in the anode of a lithium metal or lithium alloy cell. ( quantité de lithium ) mist means a mixture of liquid particles and air in which 90% or more of the liquid particles have a diameter not greater than 10 µm. ( brouillard ) net explosives quantity means the net mass of explosives, excluding the mass of any means of containment. ( quantité nette d’explosifs ) neutron radiation detector means a device that detects neutron radiation and includes a device in which a gas may be contained in a hermetically sealed electron tube transducer that converts neutron radiation into a measureable electric signal. ( détecteur de rayonnement neutronique ) offer for transport means, for dangerous goods not in transport, to select or allow the selection of a carrier to transport the dangerous goods, to prepare or allow the preparation of the dangerous goods so that a carrier can take possession of them for transport or to allow a carrier to take possession of the dangerous goods for transport. ( demande de transport ) overpack means an enclosure that is used by a single consignor to consolidate one or more small means of containment for ease of handling but that is not a minimum required means of containment. This definition does not include a large means of containment or a unit load device, as defined in the ICAO Technical Instructions, that is intended for transport by aircraft. ( suremballage ) packing group means a group in which dangerous goods are included based on the inherent danger of the dangerous goods; Packing Group I indicates great danger, Packing Group II indic