self-reactive substances which have already been classified and are already permitted for carriage in packagings are listed in 2.2.41.4, those already permitted for carriage in ibcs are listed in 4.1.4.2, packing instruction ibc520 and those already permitted for carriage in tanks according to chapter 4.2 are listed in 4.2.5.2, portable tank instruction t23. each permitted substance listed is assigned to a generic entry of table a of chapter 3.2 (un nos. 3221 to 3240), and appropriate subsidiary hazards and remarks providing relevant transport information are given.
the collective entries specify:
- self-reactive substances types b to f, see 2.2.41.1.11 above;
- physical state (liquid/solid); and
- temperature control (when required), see 2.2.41.1.17 below.
the classification of the self-reactive substances listed in 2.2.41.4 is based on the technically pure
substance (except where a concentration of less than 100% is specified).