8. If, in respect of any period of 100 consecutive days, the 90th percentile of the daily production of finished product other than dissolving grade sulphite pulp, of dissolving grade sulphite pulp or of bleached pulp has increased or is expected to increase by more than 25% in relation to the reference production rate of the mill, the operator is authorized to use an interim reference production rate if the operator complies with the conditions in section 7.