Use of packagings (except IBCs)

Packagings for organic peroxides and self-reactive substances shall conform to the requirements of
Chapter 6.1 and shall meet its test requirements for packing group II.

The packing methods for organic peroxides and self-reactive substances are listed in packing
instruction 520 and are designated OP1 to OP8. The quantities specified for each packing method are
the maximum quantities authorized per package.

The packing methods appropriate for the individual currently assigned organic peroxides and selfreactive
substances are listed in 2.2.41.4 and 2.2.52.4.

For new organic peroxides, new self-reactive substances or new formulations of currently assigned
organic peroxides or self-reactive substances, the following procedure shall be used to assign the
appropriate packing method:
(a) ORGANIC PEROXIDE, TYPE B or SELF-REACTIVE SUBSTANCE, TYPE B:
Packing method OP5 shall be assigned, provided that the organic peroxide (or self-reactive
substance) satisfies the criteria of 20.4.3 (b) (resp. 20.4.2 (b)) of the Manual of Tests and
Criteria in a packaging authorized by the packing method. If the organic peroxide (or selfreactive
substance) can only satisfy these criteria in a smaller packaging than those authorized
by packing method OP5 (viz. one of the packagings listed for OP1 to OP4), then the
corresponding packing method with the lower OP number is assigned;
(b) ORGANIC PEROXIDE, TYPE C or SELF-REACTIVE SUBSTANCE, TYPE C:
Packing method OP6 shall be assigned, provided that the organic peroxide (or self-reactive
substance) satisfies the criteria of 20.4.3 (c) (resp. 20.4.2 (c)) of the Manual of Tests and
Criteria in a packaging authorized by the packing method. If the organic peroxide (or selfreactive
substance) can only satisfy these criteria in a smaller packaging than those authorized
by packing method OP6 then the corresponding packing method with the lower OP number is
assigned;
(c) ORGANIC PEROXIDE, TYPE D or SELF-REACTIVE SUBSTANCE, TYPE D:
Packing method OP7 shall be assigned to this type of organic peroxide or self-reactive
substance;
(d) ORGANIC PEROXIDE, TYPE E or SELF-REACTIVE SUBSTANCE, TYPE E:
Packing method OP8 shall be assigned to this type of organic peroxide or self-reactive
substance;
(e) ORGANIC PEROXIDE, TYPE F or SELF-REACTIVE SUBSTANCE, TYPE F:
Packing method OP8 shall be assigned to this type of organic peroxide or self-reactive
substance.

Use of intermediate bulk containers

The currently assigned organic peroxides specifically listed in packing instruction IBC520 may be
carried in IBCs in accordance with this packing instruction. IBCs shall conform to the requirements of
Chapter 6.5 and shall meet its test requirements for packing group II.

Other organic peroxides and self-reactive substances of type F may be carried in IBCs under
conditions established by the competent authority of the country of origin when, on the basis of the
appropriate tests, that competent authority is satisfied that such carriage may be safely conducted. The
tests undertaken shall include those necessary:
(a) To prove that the organic peroxide (or self-reactive substance) complies with the principles for
classification given in 20.4.3 (f) [resp. 20.4.2 (f)] of the Manual of Tests and Criteria, exit box
F of Figure 20.1 (b) of the Manual;
(b) To prove the compatibility of all materials normally in contact with the substance during
carriage;
(c) To determine, when applicable, the control and emergency temperatures associated with the
carriage of the product in the IBC concerned as derived from the SADT;
(d) To design, when applicable, pressure and emergency relief devices; and
(e) To determine if any special provisions are necessary for safe carriage of the substance.
If the country of origin is not a Contracting Party to ADR, the classification and transport conditions
shall be recognized by the competent authority of the first country Contracting Party to ADR reached
by the consignment.

Emergencies to be taken into account are self-accelerating decomposition and fire engulfment. To
prevent explosive rupture of metal or composite IBCs with a complete metal casing, the emergencyrelief
devices shall be designed to vent all the decomposition products and vapours evolved during
self-accelerating decomposition or during a period of not less than one hour of complete fire
engulfment calculated by the equations given in 4.2.1.13.8.

Special packing provisions for infectious substances (Class 6.2)

Consignors of infectious substances shall ensure that packages are prepared in such a manner that they
arrive at their destination in good condition and present no hazard to persons or animals during
carriage.

The definitions in 1.2.1 and the general packing provisions of 4.1.1.1 to 4.1.1.17, except 4.1.1.10 to
4.1.1.12 and 4.1.1.15 apply to infectious substances packages. However, liquids shall only be filled
into packagings which have an appropriate resistance to the internal pressure that may develop under
normal conditions of carriage.

An itemized list of contents shall be enclosed between the secondary packaging and the outer
packaging. When the infectious substances to be carried are unknown, but suspected of meeting the
criteria for inclusion in Category A, the words "suspected Category A infectious substance" shall be
shown, in parenthesis, following the proper shipping name on the document inside the outer
packaging.

Before an empty packaging is returned to the consignor, or sent elsewhere, it shall be disinfected or
sterilized to nullify any hazard and any label or mark indicating that it had contained an infectious
substance shall be removed or obliterated.

Provided an equivalent level of performance is maintained, the following variations in the primary
receptacles placed within a secondary packaging are allowed without the need for further testing of
the completed packaging:
(a) Primary receptacles of equivalent or smaller size as compared to the tested primary receptacles
may be used provided:
(i) the primary receptacles are of similar design to the primary receptacle tested (e.g. shape:
round, rectangular, etc.);
(ii) the material of construction of the primary receptacles (e.g. glass, plastics, metal) offers
resistance to impact and stacking forces equivalent to or better than that of the primary
receptacles originally tested;
(iii) the primary receptacles have the same or smaller openings and the closure is of
equivalent design (e.g. screw cap, friction lid, etc.);
(iv) sufficient additional cushioning material is used to take up empty spaces and to prevent
significant movement of the primary receptacles; and
(v) primary receptacles are oriented within the secondary packagings in the same manner as
in the tested package;
(b) A lesser number of the tested primary receptacles, or of the alternative types of primary
receptacles identified in (a) above, may be used provided sufficient cushioning is added to fill
the void space(s) and to prevent significant movement of the primary receptacles.

 

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