Bench-Ageing Time = A (Total te

Bench ageing time shall be calculated using the bench ageing time (BAT) equation as follows:

Tr The effective reference temperature (in K) of the catalyst on the catalyst bench run on the bench ageing cycle.

Tr The effective reference temperature (in K) of the catalyst on the catalyst bench run on the bench ageing cycle.

The standard bench ageing procedures use the standard bench cycle (SBC).

Bench ageing time shall be calculated using the bench ageing time (BAT) equation as follows:

Bench ageing duration is calculated using the BAD equation as follows

Bench ageing duration is calculated using the BAD equation as follows

Ageing on the bench shall be conducted by following the standard bench cycle (SBC) for the period of time calculated from the bench ageing time (BAT) equation.

The bench ageing procedure requires the installation of the catalyst-plus-oxygen sensor system on a catalyst ageing bench.

The standard diesel bench ageing durability procedure consists of ageing an aftertreatment system on an ageing bench which follows the standard bench cycle (SDBC) described in this Appendix.

Ageing on the bench is conducted by following the standard diesel bench cycle (SDBC) for the number of regenerations/desulphurisations calculated from the bench ageing duration (BAD) equation.

The SDBC shall be run for the period of time calculated from the BAD equation.

The SDBC shall be run for the period of time calculated from the bench ageing duration (BAD) equation.

The effective temperature is the constant temperature that would result in the same amount of ageing as the various temperatures experienced during the bench ageing cycle.