Document ID: chunk:federal_register_of_legislation:F2024C00356:front:0:p21
Version: federal_register_of_legislation:F2024C00356
Segment Type: other
Provision Reference: 
Character Range: 89822–95243

the diluted exhaust is measured. Not only the carbon monoxide, hydrocarbon and nitrogen oxide emissions but also the particulate pollutant emissions from vehicles equipped with compression-ignition engines are recorded.
              5.3.1.3. The test is carried out using the procedure of Type I test as described in Annex 4a. The method used to collect and analyse the gases is prescribed in Appendix 2 and 3 of Annex 4a, and the method to sample and analyse the particulates shall be as prescribed in Appendix 4 and 5 of Annex 4a.
              5.3.1.4. Subject to the requirements of paragraph 5.3.1.5. the test shall be repeated three times. The results are multiplied by the appropriate deterioration factors obtained from paragraph 5.3.6. and, in the case of periodically regenerating systems as defined in paragraph 2.20., also must be multiplied by the factors Ki obtained from Annex 13. The resulting masses of gaseous emissions and, in the case of vehicles equipped with compression-ignition engines, the mass of particulates obtained in each test shall be less than the limits shown in the Table 1 below:

Table 1
Emissions limit
              Limit values
                                                                                                             Reference mass(RM)  Mass of carbon monoxide  Mass of total hydrocarbons  Mass of non- methane hydrocarbons (NMHC)  Mass of oxides of nitrogen  Combined mass of hydrocarbons and oxides of nitrogen  Mass of particulate matter   Number of particles
                                                                                                             (kg)                (CO)                     (THC)                                                                 (NOx)                       (THC + NOx)                                           (PM)                         (P)
L1                                                                                                           L2                  L3                       L4                          L2 + L3                                   L5                          L6
                                                                                                             (mg/km)             (mg/km)                  (mg/km)                     (mg/km)                                   (mg/km)                     (number/km)
(mg/km)
Category                                                                                                     Class                                        PI                          CI                                        PI                          CI                                                    PI                           CI                    PI   CI   PI   CI   PI 1  CI   PI          CI
M                                                                                                            -                   All                      1,000                       500                                       100                         -                                                     68                           -                     60   180  -    230  4.5   4.5  -           6.0 x 1011
N1                                                                                                           I                   RM ≤ 1,305               1,000                       500                                       100                         -                                                     68                           -                     60   180  -    230  4.5   4.5  -           6.0 x 1011
II                                                                                                           1,305 < RM ≤ 1,760  1,810                    630                         130                                       -                           90                                                    -                            75                    235  -    295  4.5  4.5   -    6.0 x 1011
III                                                                                                          1,760 < RM          2,270                    740                         160                                       -                           108                                                   -                            82                    280  -    350  4.5  4.5   -    6.0 x 1011
N2                                                                                                           -                   All                      2,270                       740                                       160                         -                                                     108                          -                     82   280  -    350  4.5   4.5  -           6.0 x 1011
Key: PI = Positive Ignition, CI = Compression Ignition
(1) Positive ignition particulate mass standard shall apply only to vehicles with direct injection engines.

              5.3.1.4.1. Notwithstanding the requirements of paragraph 5.3.1.4., for each pollutant or combination of pollutants, one of the three resulting masses obtained may exceed, by not more than 10 per cent, the limit prescribed, provided the arithmetical mean of the three results is below the prescribed limit. Where the prescribed limits are exceeded for more than one pollutant, it is immaterial whether this occurs in the