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The Non-Road Mobile Machinery (Emission of Gaseous and Particulate Pollutants) Regulations 1999

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  1. Introductory Text

  2. PART I

    1. 1.Citation and commencement

    2. 2.Interpretation

  3. PART II

    1. 3.Scope and Exclusions

    2. 4.General duty relating to placing on the market

    3. 5.Categories of engines

    4. 6.Provisions for grant of type approval certificate

    5. 7.Transitional provisions in respect of placing on the market

    6. 8.Application for type approval

    7. 9.Approval of engines

    8. 10.Amendments to approvals

    9. 11.Conformity

    10. 12.Provision of Technical Service

    11. 13.Non-conformity with the approved type or family

    12. 14.Fees

    13. 15.Exemptions and alternative procedures

  4. PART III

    1. 16.Enforcement Authorities

    2. 17.Offences

    3. 18.Penalty

    4. 19.Defence of due diligence

    5. 20.Liability of persons other than the principal offender

  5. Signature

    1. SCHEDULE 1

      (Annex 1 to Directive 97/68/EC)

      1. [1.This section is implemented by regulation 3.]

      2. 2.DEFINITIONS, SYMBOLS AND ABBREVIATIONS

      3. 2.1.compression ignition (C.I.) engine shall mean an engine which works...

      4. 2.2.gaseous pollutants shall mean carbon monoxide, hydrocarbons (assuming a ratio...

      5. 2.3.particulate pollutants shall mean any material collected on a specified...

      6. 2.4.net power shall mean the power in “EEC kW” obtained...

      7. 2.5.rated speed shall mean the maximum full load speed allowed...

      8. 2.6.per cent load shall mean the fraction of the maximum...

      9. 2.7.maximum torque speed shall mean the engine speed at which...

      10. 2.8.intermediate speed shall mean that engine speed which meets one...

      11. 2.9.Symbols and Abbreviations

      12. 2.9.1.Symbols for test parameters Symbol Unit Term AP m2 Cross...

      13. 2.9.2.Symbols for the chemical components CO Carbon monoxide CO2 Carbon...

      14. 2.9.3.Abbreviations FID Flame ionization detector HFID Heated flame ionization detector...

      15. 3.ENGINE MARKINGS

      16. 3.1.The engine approved as a technical unit must bear:

      17. 3.1.1.the trade mark or trade name of the manufacturer of...

      18. 3.1.2.the engine type, engine family (if applicable), and a unique...

      19. 3.1.3.the EC type-approval number as described in Annex VII.

      20. 3.2.These marks must be durable for the useful life of...

      21. 3.3.These marks must be secured to an engine part necessary...

      22. 3.3.1.These marks must be located so as to be readily...

      23. 3.3.2.Each engine must be provided with a supplementary movable plate...

      24. 3.4.The coding of the engines in context with the identification...

      25. 3.5.Before leaving the production line the engines must bear all...

      26. 3.6.The exact location of the engine markings shall be declared...

      27. 4.SPECIFICATIONS AND TESTS

      28. 4.1.General

      29. 4.2.Specifications concerning the emissions of pollutants

      30. 4.2.1.The emissions of the carbon monoxide, the emissions of hydrocarbons,...

      31. 4.2.2.The emission limits given in paragraph 4.2.1 are engine-out limits...

      32. 4.2.3.The emissions of the carbon monoxide, the emissions of hydrocarbons,...

      33. 4.2.4.Where, as defined according to Section 6 in conjunction with...

      34. 4.3.Installation on the mobile machinery

      35. 4.3.1.intake depression shall not exceed that specified for the approved...

      36. 4.3.2.exhaust back pressure shall not exceed that specified for the...

      37. 5.SPECIFICATION OF CONFORMITY OF PRODUCTION ASSESSMENTS

      38. 5.1.With regard to the verification of the existence of satisfactory...

      39. 5.2.The holder of the approval shall in particular:

      40. 5.2.1.ensure existence of procedures for the effective control of the...

      41. 5.2.2.have access to the control equipment necessary for checking the...

      42. 5.2.3.ensure that data of test results are recorded and that...

      43. 5.2.4.analyse the results of each type of test, in order...

      44. 5.2.5.ensure that any sampling of engines or components giving evidence...

      45. 5.3.The competent authority which has granted type approval may at...

      46. 5.3.1.In every inspection, the test books and production survey record...

      47. 5.3.2.When the quality level appears unsatisfactory or when it seems...

      48. 5.3.2.1.an engine is taken from the series and subjected to...

      49. 5.3.2.2.if the engine taken from the series does not satisfy...

      50. 5.3.3.The approval authority or the technical service responsible for verifying...

      51. 5.3.4.The normal frequency of inspections authorized by the competent authority...

      52. 6.PARAMETERS DEFINING THE ENGINE FAMILY

      53. 6.1.Combustion cycle: 2 cycle 4 cycle

      54. 6.2.Cooling medium: air water oil

      55. 6.3.Individual cylinder displacement: engines to be within a total spread...

      56. 6.4.Method of air aspiration: naturally aspirated pressure charged

      57. 6.5.Combustion chamber type/design: pre-chamber swirl chamber open chamber

      58. 6.6.Valve and porting—configuration, size and number: cylinder head cylinder wall...

      59. 6.7.Fuel system: pump-line-injector in-line pump distributor pump single element unit...

      60. 6.8.Miscellaneous features: exhaust gas recirculation water injection/emulsion air injection charge...

      61. 6.9.Exhaust after-treatment: oxidation catalyst reduction catalyst thermal reactor particulates trap...

      62. 7.CHOICE OF THE PARENT ENGINE

      63. 7.1.The parent engine of the family shall be selected using...

      64. 7.2.If engines within the family incorporate other variable features which...

    2. SCHEDULE 2

      (Annex II to Directive 97/68/EC)

    3. SCHEDULE 3

      (Annex III to Directive 97/68/EC)

      1. 1.INTRODUCTION

      2. 1.1.This Annex describes the method of determining emissions of gaseous...

      3. 1.2.The test shall be carried out with the engine mounted...

      4. 2.TEST CONDITIONS

      5. 2.1.General Requirements

      6. 2.2.Engine test conditions

      7. 2.2.1.The absolute temperature Ta of the engine intake air expressed...

      8. 2.2.2.Test validity

      9. 2.2.3.Engines with charge air cooling

      10. 2.3.Engine air inlet system

      11. 2.4.Engine exhaust system

      12. 2.5.Cooling system

      13. 2.6.Lubricating oil

      14. 2.7.Test fuel

      15. 2.8.Determination of dynamometer settings

      16. 3.TEST RUN

      17. 3.1.Preparation of the sampling filters

      18. 3.2.Installation of the measuring equipment

      19. 3.3.Starting the dilution system and engine

      20. 3.4.Adjustment of the dilution ratio

      21. 3.5.Checking the analysers

      22. 3.6.Test cycle

      23. 3.6.1.Specification A of machinery according to Section I of Annex...

      24. 3.6.1.1.The following 8-mode cycle shall be followed in dynamometer operation...

      25. 3.6.2.Conditioning of the Engine

      26. 3.6.3.Test sequence

      27. 3.6.4.Analyser response

      28. 3.6.5.Particulate sampling

      29. 3.6.6.Engine conditions

      30. 3.7.Re-checking the analysers

      31. Appendix 1

        1. 1.MEASUREMENT AND SAMPLING PROCEDURES

        2. 1.1.Dynamometer specification

        3. 1.2.Exhaust gas flow

        4. 1.2.1.Direct measurement method

        5. 1.2.2.Air and fuel measurement method

        6. 1.2.3.Carbon balance method

        7. 1.2.4.Total dilute exhaust gas flow

        8. 1.3.Accuracy

        9. 1.4.Determination of the gaseous components

        10. 1.4.1.General analyser specifications

        11. 1.4.1.1.Measurement error

        12. 1.4.1.2.Repeatability

        13. 1.4.1.3.Noise

        14. 1.4.1.4.Zero drift

        15. 1.4.1.5.Span drift

        16. 1.4.2.Gas drying

        17. 1.4.3.Analysers

        18. 1.4.3.1.Carbon monoxide (CO) analysis

        19. 1.4.3.2.Carbon dioxide (CO2) analysis

        20. 1.4.3.3.Hydrocarbon (HC) analysis

        21. 1.4.3.4.Oxides of nitrogen (NOX) analysis

        22. 1.4.4.Sampling for gaseous emissions

        23. 1.5.Determination of the particulates

        24. 1.5.1.Particulate sampling filters

        25. 1.5.1.1.Filter specification

        26. 1.5.1.2.Filter size

        27. 1.5.1.3.Primary and back-up filters

        28. 1.5.1.4.Filter face velocity

        29. 1.5.1.5.Filter loading

        30. 1.5.2.Weighing chamber and analytical balance specifications

        31. 1.5.2.1.Weighing chamber conditions

        32. 1.5.2.2.Reference filter weighing

        33. 1.5.2.3.Analytical balance

        34. 1.5.2.4.Elimination of static electricity effects

        35. 1.5.3.Additional specifications for particulate measurement

      32. Appendix 2

        1. 1.CALIBRATION OF THE ANALYTICAL INSTRUMENTS

        2. 1.1.Introduction

        3. 1.2.Calibration gases

        4. 1.2.1.Pure gases

        5. 1.2.2.Calibration and span gases

        6. 1.3.Operating procedure for analysers and sampling system

        7. 1.4.Leakage test

        8. 1.5.Calibration procedure

        9. 1.5.1.Instrument assembly

        10. 1.5.2.Warming-up time

        11. 1.5.3.NDIR and HFID analyser

        12. 1.5.4.Calibration

        13. 1.5.5.Establishment of the calibration curve

        14. 1.5.5.1.General guidelines

        15. 1.5.5.2.Calibration below 15% of full scale

        16. 1.5.5.3.Alternative methods

        17. 1.6.Verification of the calibration

        18. 1.7.Efficiency test of the NOX converter

        19. 1.7.1.Test set-up

        20. 1.7.2.Calibration

        21. 1.7.3.Calculation

        22. 1.7.4.Adding of oxygen

        23. 1.7.5.Activation of the ozonator

        24. 1.7.6.NOX mode

        25. 1.7.7.De-activation of the ozonator

        26. 1.7.8.NO mode

        27. 1.7.9.Test interval

        28. 1.7.10.Efficiency requirement

        29. 1.8.Adjustment of the FID

        30. 1.8.1.Optimization of the detector response

        31. 1.8.2.Hydrocarbon response factors

        32. 1.8.3.Oxygen interference check

        33. 1.9.Interference effects with NDIR and CLD analysers

        34. 1.9.1.CO analyser interference check

        35. 1.9.2.NOX analyser quench checks

        36. 1.9.2.1.CO2 quench check

        37. 1.9.2.2.Water quench check

        38. 1.10.Calibration intervals

        39. 2.CALIBRATION OF THE PARTICULATE MEASURING SYSTEM

        40. 2.1.Introduction

        41. 2.2.Flow measurement

        42. 2.3.Checking the dilution ratio

        43. 2.4.Checking the partial flow conditions

        44. 2.5.Calibration intervals

      33. Appendix 3

        1. 1.DATA EVALUATION AND CALCULATIONS

        2. 1.1.Gaseous emissions data evaluation

        3. 1.2.Particulate emissions

        4. 1.3.Calculation of the gaseous emissions

        5. 1.3.1.Determination of the exhaust gas flow

        6. 1.3.2.Dry/wet correction

        7. 1.3.3.Humidity correction for NOX

        8. 1.3.4.Calculation of emission mass flow rates

        9. 1.3.5.Calculation of the specific emissions

        10. 1.4.Calculation of the particulate emission

        11. 1.4.1.Humidity correction factor for particulates

        12. 1.4.2.Partial flow dilution system

        13. 1.4.2.1.Isokinetic systems G EDFW,i = G EXHW,i x q i...

        14. 1.4.2.2.Systems with measurement of CO2 or NOX concentration G EDFW,i...

        15. 1.4.2.3.Systems with CO2 measurement and carbon balance method G EDFW,i...

        16. 1.4.2.4.Systems with flow measurement G EDFW,i = G EXHW,i x...

        17. 1.4.3.Full flow dilution system

        18. 1.4.4.Calculation of the particulate mass flow rate

        19. 1.4.5.Calculation of the specific emissions

        20. 1.4.6.Effective weighting factor

    4. SCHEDULE 4

      (Annex IV to Directive 97/68/EC)

    5. SCHEDULE 5

      (ANNEX V to Directive 97/68/EC)

      1. 1.1.Determination of the gaseous emissions

      2. 1.1.1.Gaseous exhaust components CO, CO2, HC, NOX

      3. Figure 2 Flow diagram of exhaust gas analysis system for CO, CO2 and HC

      4. Figure 3 Flow diagram of dilute exhaust gas analysis system for CO, CO2, NOX and HC

        1. Descriptions—Figures 2 and 3

        2. 1.2.Determination of the particulates

        3. 1.2.1.Dilution system

        4. 1.2.1.1.Partial flow system (Figures 4 to 12)

      5. Figure 4 Partial flow dilution system with isokinetic probe and fractional sampling (SB control)

      6. Figure 5 Partial flow dilution system with isokinetic probe and fractional sampling (PB control)

      7. Figure 6 Partial flow dilution system with CO2 or NOX concentration measurement and fractional sampling

      8. Figure 7 Partial flow dilution system with CO2 concentration measurement, carbon balance and total sampling

      9. Figure 8 Partial flow dilution system with single venturi, concentration measurement and fractional sampling

      10. Figure 9 Partial flow dilution system twin venturi or twin orifice, concentration measurement and fractional sampling

      11. Figure 10 Partial flow dilution system with multiple tube splitting, concentration measurement and fractional sampling

      12. Figure 11 Partial flow dilution system with flow control and total sampling

      13. Figure 12 Partial flow dilution system with flow control and fractional sampling

        1. Description— Figures 4 to 12

        2. — EP exhaust pipe

        3. — SP Sampling probe (Figures 6 to 12)

        4. — ISP isokinetic sampling probe (Figures 4 and 5)

        5. — FD1, FD2 flow divider (Figure 9)

        6. — FD3 flow divider (Figure 10)

        7. — EGA exhaust gas analyser (Figures 6 to 10)

        8. — TT Transfer tube (Figures 4 to 12)

        9. — DPT differential pressure transducer (Figures 4, 5 and 10)

        10. — FCI flow controller (Figures 4, 5 and 10)

        11. — PCVI, PCV2 pressure control valve (Figure 9)

        12. — DC damping chamber (Figure 10)

        13. — VN venturi (Figure 8)

        14. FC2 flow controller (Figures 6, 7, 11 and 12, optional)

        15. FM1 flow measurement device (Figures 6, 7, 11 and 12)

        16. FM2 flow measurement device (Figure 12)

        17. PB pressure blower (Figures 4, 5, 6, 7, 8, 9 and 12)

        18. — DAF dilution air filter (Figures 4 to 12)

        19. — PSP particulate sampling probe (Figures 4, 5, 6, 8, 9, 10 and 12)

        20. — DT dilution tunnel (Figures 4 to 12)

        21. — HE heat exchanger (Figures 9 and 10)

        22. 1.2.1.2.Full flow dilution system (Figure 13)

        23. Descriptions—Figure 13

        24. — EP exhaust pipe

      14. Figure 13 Full flow dilution system

        1. — PDP positive displacement pump

        2. — CFV critical flow venturi

        3. — HE heat exchanger (optional if EFC is used)

        4. — EFC electronic flow compensation (optional if HE is used)

        5. — DT dilution tunnel

        6. — DAF dilution air filter

        7. — PSP particulate sampling probe

        8. 1.2.2.Particulate sampling system (Figures 14 and 15)

        9. Descriptions—Figures 14 and 15

        10. — PSP particulate sampling probe (Figures 14 and 15)

      15. Figure 14 Particulate sampling system

      16. Figure 15 Dilution system (full flow system only)

        1. — PTT particulate transfer tube (Figures 14 and 15)

        2. — SDT secondary dilution tunnel (Figure 15)

        3. — FH filter holder(s) (Figures 14 and 15)

        4. — P sampling pump (Figures 14 and 15)

        5. — DP dilution air pump (Figure 15) (full flow double dilution only)

        6. — FC3 flow controller (Figures 14 and 15)

        7. — FM3 flow measurement device (Figures 14 and 15) (particulate sample flow)

        8. — FM4 flow measurement device (Figure 15) (dilution air, full flow double dilution only)

        9. — BV ball valve (optional)

    6. Schedule 6

    7. Schedule 7

      (ANNEX VII to Directive 97/68/EC)

      APPROVAL CERTIFICATE NUMBERING SYSTEM

      (see Article 4(2))

      1. 1.The number shall consist of five sections separated by the...

      2. 2.Example of the third approval (with, as yet, no extension)...

      3. 3.Example of the second extension to the fourth approval corresponding...

  7. Explanatory Note

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