Document ID: chunk:federal_register_of_legislation:F2023C00229:reg:4:p34
Version: federal_register_of_legislation:F2023C00229
Segment Type: reg
Provision Reference: reg 4 (pt 34/42)
Character Range: 96750–100694

for the gaseous pollutants, the recommended particulate sampling systems, and the recommended smoke measurement system.

              Other systems or analysers may be approved by the Technical Service if it is found that they yield equivalent results on the respective test cycle. The determination of system equivalency shall be based upon a 7 sample pair (or larger) correlation study between the system under consideration and one of the reference systems of this Directive. For particulate emissions only the full flow dilution system is recognised as the reference system. 'Results' refer to the specific cycle emissions value. The correlation testing shall be performed at the same laboratory, test cell, and on the same engine, and is preferred to be run concurrently. The equivalency criterion is defined as a ± 5 % agreement of the sample pair averages. For introduction of a new system into the Directive the determination of equivalency shall be based upon the calculation of repeatability and reproducibility, as described in ISO 5725.

6.2.1.                        Limit values

              The specific mass of the carbon monoxide, of the total hydrocarbons, of the oxides of nitrogen and of the particulates, as determined on the ESC test, and of the smoke opacity, as determined on the ELR test, shall not exceed the amounts shown in Table 1.
        Table 1

        Limit values — ESC and ELR tests

            Mass of carbon monoxide
                                      Mass of hydrocarbons  Mass of nitrogen oxides      Mass of particulates (PT) g/kWh     Smoke m–1
 Row        (CO) g/kWh
                                      (HC) g/kWh            (NOx) g/kWh
A (2000)   2,1                         0,66                   5,0                      0,10                                0,13 (1)       0,8
B1 (2005)  1,5                         0,46                   3,5                         0,02                              0,5
B2 (2008)  1,5                         0,46                   2,0                         0,02                              0,5
C (EEV)    1,5                         0,25                   2,0                         0,02                              0,15

               (1)  For engines having a swept volume of less than 0,75 dm3 per cylinder and a rated power speed of more than                  3 000 min -1.

              For diesel engines that are additionally tested on the ETC test, and specifically for gas engines, the specific masses of the carbon monoxide, of the non-methane hydrocarbons, of the methane (where applicable), of the oxides of nitrogen and of the particulates (where applicable) shall not exceed the amounts shown in Table 2.

        Table 2

        Limit values — ETC tests

                                      Mass of non-methane hydrocarbons    Mass of methane
            Mass of carbon monoxide                                                        Mass of nitrogen oxides      Mass of particulates (PT) (2) g/kWh
 Row                                 (NMHC) g/kWh                        (CH4) (1)
            (CO) g/kWh                                                    g/kWh            (NOx) g/kWh
A (2000)   5,45                       0,78                              1,6                5,0                      0,16                                       0,21 (3)
B1 (2005)  4,0                        0,55                              1,1                3,5                           0,03
B2 (2008)  4,0                        0,55                              1,1                2,0                           0,03
C (EEV)    3,0                        0,40                              0,65               2,0                           0,02

               (1)  For NG engines only.
               (2)  Not applicable for gas fuelled engines at stage A and stages B1 and B2.
               (3)  For engines having a swept volume of less