Document ID: chunk:federal_register_of_legislation:F2023L00129:reg:10:p11
Version: federal_register_of_legislation:F2023L00129
Segment Type: reg
Provision Reference: reg 10 (pt 11/150)
Character Range: 744161–747457

valid windows
10.1.12. Test verifications
              10.1.12.1. THC analyser zero, span and audit results, pre and post test
              10.1.12.2. CO analyser zero, span and audit results, pre and post test
              10.1.12.3. NOx analyser zero-span and audit results, pre and post test
              10.1.12.4. CO2 analyser zero, span and audit results, pre and post test
              10.1.12.4bis. PM number analyser zero, pre and post test
              10.1.12.5. CH4 analyser zero, span and audit results, pre and post test for natural gas fuelled engines only
              10.1.12.6. Data consistency check results, according to paragraph A.1.3.2. of Appendix 1 to this annex.
              10.1.12.6.1. Results of the linear regression described in paragraph A.1.3.2.1. of Appendix 1 to this annex including the slope of the regression line, m, coefficient of determination, r2 and the intercept, b, of the y-axis of the regression line.
              10.1.12.6.2. Result of the consistency check of the ECU data in accordance with paragraph A.1.3.2.2. of Appendix 1 to this Annex.
              10.1.12.6.3. Result of the consistency check of the Brake-specific fuel consumption in accordance with paragraph A.1.3.2.3. of Appendix 1 to this annex, including the calculated Brake-specific fuel consumption and the ratio of the calculated Brake-specific fuel consumption from the PEMS measurement and the declared Brake-specific fuel consumption for the WHTC test.
              10.1.12.6.4. Result of the consistency check of the Odometer in accordance with paragraph A.1.3.2.4. of Appendix 1 to this annex.
              10.1.12.6.5. Result of the consistency check of the ambient pressure in accordance with paragraph A.1.3.2.5. of Appendix 1 to this annex.
              10.1.13. List of further attachments where these exist.

                  Annex 8 ‑ Appendix 1 Test procedure for vehicle emissions testing with portable emissions measurement systems
              A.1.1. Introduction

              This Appendix describes the procedure to determine pollutant emissions from on-vehicle on-road measurements using Portable Emissions Measurement Systems (hereinafter "PEMS"). The pollutant emissions to be measured from the exhaust of the engine include the following components: carbon monoxide, total hydrocarbons, nitrogen oxides and PM number for compression ignition engines and carbon monoxide, non- methane hydrocarbons, methane, nitrogen oxides and PM number for positive ignition engines. Additionally, carbon dioxide shall be measured to enable the calculation procedures described in paragraph A.1.4.

              For engines fuelled with natural gas, the manufacturer, technical service or Type Approval Authority may choose to measure the total hydrocarbon (THC) emissions only instead of measuring the methane and non-methane hydrocarbon emissions. In that case, the emission limit for the total hydrocarbon emissions is the same as the one shown in paragraph 5.3. of this Regulation for methane emissions. For the purposes of the calculation of the conformity factors pursuant to paragraphs A.1.4.2.3. and A.1.4.3.2., the applicable limit shall in that case be the methane emission limit only.

For engines fuelled with gases other than natural gas,