For container and general cargo spaces (primarily intended to carry a
variety of cargoes separately secured or packed) the fixed piping system shall be
such that at least two thirds of the gas can be discharged into the space
within 10 min. For solid bulk cargo spaces the fixed piping system shall be such that
at least two thirds of the gas can be discharged into the space within 20 min.
The system controls shall be arranged to allow one third, two thirds or the entire
quantity of gas to be discharged based on the loading condition of the hold.