This section is not applicable to substances which may be used for cooling or conditioning purposes
when carried as a consignment of dangerous goods, except for the carriage of dry ice (UN No. 1845).
When they are carried as a consignment, these substances shall be carried under the relevant entry of
Table A of Chapter 3.2 in accordance with the associated conditions of carriage.
For UN No. 1845, the conditions of carriage specified in this section, except 18.104.22.168.1, apply for all
kinds of carriage, as a coolant, conditioner, or as a consignment. For the carriage of UN No. 1845, no
other provisions of ADR apply.
This section is not applicable to gases in cooling cycles.
Dangerous goods used for cooling or conditioning tanks or MEGCs during carriage are not subject to
Vehicles and containers containing substances used for cooling or conditioning purposes include
vehicles and containers containing substances used for cooling or conditioning purposes inside
packages as well as vehicles and containers with unpackaged substances used for cooling or
Sub-sections 22.214.171.124 and 126.96.36.199 only apply when there is an actual risk of asphyxiation in the vehicle
or container. It is for the participants concerned to assess this risk, taking into consideration the
hazards presented by the substances being used for cooling or conditioning, the amount of substance
to be carried, the duration of the journey, the types of containment to be used and the gas
concentration limits given in the note to 188.8.131.52.3.
Vehicles and containers containing substances used for cooling or conditioning purposes (other than
fumigation) during carriage are not subject to any provisions of ADR other than those of this section.
When dangerous goods are loaded in vehicles or containers containing substances used for cooling or
conditioning purposes any provisions of ADR relevant to these dangerous goods apply in addition to
the provisions of this section.
Persons engaged in the handling or carriage of vehicles and containers containing substances used for
cooling or conditioning purposes shall be trained commensurate with their responsibilities.
Packages containing a coolant or conditioner
Packaged dangerous goods requiring cooling or conditioning assigned to packing instructions P203,
P620, P650, P800, P901 or P904 of 184.108.40.206 shall meet the appropriate requirements of that packing
For packaged dangerous goods requiring cooling or conditioning assigned to other packing
instructions, the packages shall be capable of withstanding very low temperatures and shall not be
affected or significantly weakened by the coolant or conditioner. Packages shall be designed and
constructed to permit the release of gas to prevent a build-up of pressure that could rupture the
packaging. The dangerous goods shall be packed in such a way as to prevent movement after the
dissipation of any coolant or conditioner.
Packages containing a coolant or conditioner shall be carried in well ventilated vehicles and
containers. Marking according to 220.127.116.11 is not required in this case.
Ventilation is not required, and marking according to 18.104.22.168 is required, if:
- gas exchange between the load compartment and the driver’s cab is prevented; or
- the load compartment is insulated, refrigerated or mechanically refrigerated equipment, for
example as defined in the Agreement on the International Carriage of Perishable Foodstuffs
and on the Special Equipment to be Used for such Carriage (ATP) and separated from the
NOTE: In this context "well ventilated" means there is an atmosphere where the carbon dioxide
concentration is below 0.5% by volume and the oxygen concentration is above 19.5% by volume.