Carriage of this cargo should not exceed 90 days.
Before another cargo with notes 4, 7, 8 or 11 is transported the coating has to be restored to its original condition. This may be obtained by ventilating the tank thoroughly until the tank is in a steady state gas-free condition (see Ventilation
). by carriage of non-aggressive cargoes (without note 4, 7, 8 and/or 11) or empty (dry air) for a period of at least 10 days.