Dangerous Goods by Road
Where two or more closure systems are fitted in series on an IBC, that nearest to the substance being
carried shall be closed first.
Where pressure may develop in a package by the emission of gas from the contents (as a result of
temperature increase or other causes), the packaging or IBC may be fitted with a vent provided that
the gas emitted will not cause danger on account of its toxicity, its flammability or the quantity
released, for example.
A venting device shall be fitted if dangerous overpressure may develop due to normal decomposition
of substances. The vent shall be so designed that, when the packaging or IBC is in the attitude in
which it is intended to be carried, leakages of liquid and the penetration of foreign substances are
prevented under normal conditions of carriage.
NOTE: Venting of the package is not permitted for air carriage.
Liquids may only be filled into inner packagings which have an appropriate resistance to internal
pressure that may be developed under normal conditions of carriage.
New, remanufactured or reused packagings, including IBCs and large packagings, or reconditioned
packagings and repaired or routinely maintained IBCs shall be capable of passing the tests prescribed
in 6.1.5, 6.3.5, 6.5.6 or 6.6.5, as applicable. Before being filled and handed over for carriage, every
packaging, including IBCs and large packagings, shall be inspected to ensure that it is free from
corrosion, contamination or other damage and every IBC shall be inspected with regard to the proper
functioning of any service equipment. Any packaging which shows signs of reduced strength as
compared with the approved design type shall no longer be used or shall be so reconditioned, that it is
able to withstand the design type tests. Any IBC which shows signs of reduced strength as compared
with the tested design type shall no longer be used or shall be so repaired or routinely maintained that
it is able to withstand the design type tests.
Liquids shall be filled only into packagings, including IBCs, which have an appropriate resistance to
the internal pressure that may develop under normal conditions of carriage. Packagings and IBCs
marked with the hydraulic test pressure prescribed in 6.1.3.1 (d) and 6.5.2.2.1, respectively shall be
filled only with a liquid having a vapour pressure:
(a) such that the total gauge pressure in the packaging or IBC (i.e. the vapour pressure of the
filling substance plus the partial pressure of air or other inert gases, less 100 kPa) at 55 °C,
determined on the basis of a maximum degree of filling in accordance with 4.1.1.4 and a filling
temperature of 15 °C, will not exceed two-thirds of the marked test pressure; or
(b) at 50 °C less than four-sevenths of the sum of the marked test pressure plus 100 kPa; or
(c) at 55 °C less than two-thirds of the sum of the marked test pressure plus 100 kPa.
IBCs intended for the carriage of liquids shall not be used to carry liquids having a vapour pressure of
more than 110kPa (1.1 bar) at 50 °C or 130kPa (1.3 bar) at 55 °C.
Examples of required marked test pressures for packagings, including IBCs,
calculated as in 4.1.1.10 (c)
|
UN No |
Name |
Class |
Packing group |
Vp55 (kPa) |
Vp55 × 1.5 (kPa) |
(Vp55 × 1.5) minus 100 (kPa) |
Required minimum test pressure gauge under 6.1.5.5.4(c) (kPa) |
Minimum test pressure (gauge) to be marked on the packaging (kPa) |
|
2056 2247 1593 1155 |
Tetrahydrofuran n-Decane Dichloromethane Diethyl ether |
3 3 6.1 3 |
II III III I |
70 1.4 164 199 |
105 2.1 246 299 |
5 -97.9 146 199 |
100 100 146 199 |
100 100 150 250 |
NOTE 1: For pure liquids the vapour pressure at 55 °C (Vp55) can often be obtained from scientific
tables.
NOTE 2: The table refers to the use of 4.1.1.10 (c) only, which means that the marked test pressure
shall exceed 1.5 times the vapour pressure at 55 °C less 100 kPa. When, for example, the test pressure
for n-decane is determined according to 6.1.5.5.4 (a), the minimum marked test pressure may be
lower.
NOTE 3: For diethyl ether the required minimum test pressure under 6.1.5.5.5 is 250 kPa.
Empty packagings, including IBCs and large packagings, that have contained a dangerous substance
are subject to the same requirements as those for a filled packaging, unless adequate measures have
been taken to nullify any hazard.
NOTE: When such packagings are carried for disposal, recycling or recovery of their material,
they may also be carried under UN 3509 provided the conditions of special provision 663 of Chapter
3.3 are met.
Every packaging as specified in Chapter 6.1 intended to contain liquids shall successfully undergo a
suitable leakproofness test. This test is part of a quality assurance programme as stipulated in 6.1.1.4
which shows the capability of meeting the appropriate test level indicated in 6.1.5.4.3:
(a) before it is first used for carriage;
(b) after remanufacturing or reconditioning of any packaging, before it is re-used for carriage.
For this test the packaging need not have its closures fitted. The inner receptacle of a composite
packaging may be tested without the outer packaging, provided the test results are not affected. This
test is not required for:
- inner packagings of combination packagings or large packagings;
- inner receptacles of composite packagings (glass, porcelain or stoneware) marked with the
symbol "RID/ADR" in accordance with 6.1.3.1 (a) (ii);
- light gauge metal packagings marked with the symbol "RID/ADR" in accordance
with 6.1.3.1 (a) (ii).
Packagings, including IBCs, used for solids which may become liquid at temperatures likely to be
encountered during carriage shall also be capable of containing the substance in the liquid state.
Packagings, including IBCs, used for powdery or granular substances shall be sift-proof or shall be
provided with a liner.
For plastics drums and jerricans, rigid plastics IBCs and composite IBCs with plastics inner
receptacles, unless otherwise approved by the competent authority, the period of use permitted for the
carriage of dangerous substances shall be five years from the date of manufacture of the receptacles,
except where a shorter period of use is prescribed because of the nature of the substance to be carried.
Where ice is used as a coolant it shall not affect the integrity of the packaging.
Packagings, including IBCs and large packagings, marked in accordance with 6.1.3, 6.2.2.7, 6.2.2.8,
6.3.1, 6.5.2 or 6.6.3 but which were approved in a State which is not a Contracting Party to ADR may
nevertheless be used for carriage under ADR.
Explosives, self-reactive substances and organic peroxides
Unless specific provision to the contrary is made in ADR, the packagings, including IBCs and large
packagings, used for goods of Class 1, self-reactive substances of Class 4.1 and organic peroxides of
Class 5.2 shall comply with the provisions for the medium danger group (packing group II).
Use of salvage packagings and large salvage packagings
Damaged, defective, leaking or non-conforming packages, or dangerous goods that have spilled or
leaked may be carried in salvage packagings mentioned in 6.1.5.1.11 and in large salvage packagings
mentioned in 6.6.5.1.9. This does not prevent the use of a larger size packaging, an IBC of type 11A
or a large packaging of appropriate type and performance level and under the conditions of 4.1.1.19.2
and 4.1.1.19.3.