Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:20:p29
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 20 (pt 29/29)
Character Range: 297766–298383

be diluted with a conditioned diluent (such as ambient air). One sample over the complete test procedure shall be taken, and collected on a single suitable filter.
 For calculation of the brake specific emissions, the actual cycle work shall be calculated by integrating actual engine power over the cycle.
 The WHSC is shown in Table 1. Except for mode 1, the start of each mode is defined as the beginning of the ramp from the previous mode.
              Table 1
              WHSC test cycle
      Normalized speed   Normalized torque   Mode length (s)
Mode  (per cent)         (per cent)          incl. 20 s ramp