See 2.2.52.1.8 of the ADR:

"Classification of organic peroxides not listed in 2.2.52.4, 4.1.4.2 packing instruction IBC520 or 4.2.5.2, portable tank instruction T23, and assignment to a collective entry shall be made by the competent authority of the country of origin. The statement of approval shall contain the classification and the relevant conditions of carriage. [...]"

This BAM No. represents the generic entry itself, provided that the organic peroxide also has corrosive properties within the meaning of ADR - it has been assigned packing method OP5 according to 4.1.7.1.4 a) of the ADR. A packing method with a lower OP number may be indicated in the approval certificate of the competent authority if the organic peroxide meets the criteria of the Manual of Tests and Criteria, para. 20.4.3 b) only in a smaller packaging.

Under certain circumstances, the hazard label according to model 1 may be omitted (see special provision 181).

In this case, other (facilitated) conditions for mixed loading also apply. Mixed loading is then permissible with packages labelled with danger labels according to the model

	1.4S, 2.1, 2.2, 2.3, 3, 4.1, 4.2, 4.3, 5.1, 5.2, 6.1, 6.2, 7A, 7B, 7C, 8, 9, or 9A

and do not have an additional hazard label according to model 1.