The provisions of Chapter 5.3 and 7.1.7.4.7 and 7.1.7.4.8 as well as special provision V1 of Chapter 7.2 shall not apply provided that the substance is packaged in accordance with packing method OP1 or OP2 of packing instruction P520 in 4.1.4.1, as required, and the total quantity of substances to which this derogation applies per transport unit is limited to 10 kg.