The Lawnmowers (Harmonization of Noise Emission Standards) Regulations 1992

2. Introductory Text

1. Citation, commencement and revocation

3. 2. Application of Regulations

4. 3. Interpretation

5. 4. Prohibition on supply

6. 5. Listed laboratories

7. 6. Prescribed fee

8. 7. Conformity checks

9. 8. Offences

10. 9. Offences by Corporations

11. Signature

12. 1. SCHEDULE 1

       MODEL CERTIFICATE OF CONFORMITY ISSUED BY THE MANUFAC TURER, OR BY THE IMPORTER DOMICILED IN THE COMMUNITY

    2. SCHEDULE 2A

       MODEL FOR MARK STATING THE SOUND POWER LEVEL

    3. SCHEDULE 2B

       MODEL FOR MARK STATING THE SOUND PRESSURE LEVEL AT THE OPERATOR'S POSITION

       1. The models in Schedules 2A and 2B show relative proportions...

    4. SCHEDULE 3

       1. PART 1 METHOD OF DETERMINING AIRBORNE NOISE EMITTED BY LAWNMOWERS (ALSO REFERRED TO AS MOWERS IN THIS SCHEDULE)

          1. 1. OBJECT

          2. 2. SCOPE

          3. 2.1. Type of noise

          4. 2.2. Size of sound source

          5. 3. DEFINITIONS

          6. 3.1. Sound pressure level L_pA

          7. 3.2. Measuring surface

          8. 3.3. Surface sound pressure level L_pAM

          9. 3.4. Sound power level L_WA is obtained by applying the weighting A to the sound power level L_W.

          10. 3.5. Limit value of the sound power level L_WA1

          11. 3.6. Directivity index (DI)

          12. 3.7. Extraneous noise

          13. 3.7.1. Background noise

          14. 3.7.2. Parasitic noise

          15. 4. CRITERIA TO BE USED FOR EXPRESSING RESULTS

          16. 4.1. Acoustic criteria for the environment

          17. 5. MEASURING INSTRUMENTS

          18. 5.1. General

          19. 5.2. Measuring instruments

          20. Note:

          21. 5.3. Microphone with cable

          22. 5.4. Weighting network

          23. 5.5. Inspection of the measuring apparatus

          24. 5.5.1. Before the tests, the acoustic properties of the entire apparatus...

          25. 5.5.2. These on-the-spot checks shall be supplemented by more thorough calibrations...

          26. 6. MEASURING CONDITIONS

          27. 6.1. Purpose of the measurement

          28. 6.1.1. Lawnmowers designed to be equipped with a device for collecting...

          29. 6.1.2. The cutting device shall be adjusted to a height of...

          30. 6.1.3. The cutting devices of cylinder lawnmowers shall be adjusted with...

          31. 6.2. Operation of the sound source during measurement

          32. 6.3. Measuring site

          33. 6.3.1. General

          34. 6.3.2. Measurements in the open air on artificial flooring

          35. 6.3.3. Measurements in the open air on grass

          36. 6.3.4. Measurements indoors

          37. 6.4. Measuring surface, measuring distance, location and number of measuring points

          38. 6.4.1. Measuring surface

          39. 6.4.2. Location and number of measuring points

          40. 6.4.2.1. General

          41. 6.4.2.2. Position of the measuring points on a hemisphere of radius r

          42. 7. MEASUREMENTS

          43. 7.1. Measurement of the acoustic properties of the measuring site

          44. 7.1.1. Extraneous noise

          45. 7.1.2. Wind speed and direction

          46. 7.1.3. Measurement of temperature, humidity, barometric pressure and other disturbances

          47. 7.1.4. Acoustic quality of the test area

          48. 7.1.5. Presence of obstacles

          49. 7.2. Measurement of the sound pressure level L_pA

          50. Note:

          51. 7.3. Determination of the nature of the noise generated by the sound source

          52. 7.3.1. Detection of noise of an impulsive character

          53. 7.3.2. Detection of a noise with discrete tones

          54. 8. USE OF RESULTS

          55. 8.1. Calculation of root mean square values

          56. 8.1.1. Root mean square value at a measuring point

          57. 8.1.2. Root mean square value on the measuring surface

          58. 8.2. Calculation of average extraneous noise level

          59. 8.3. Calculation of the area S of the measuring surface

          60. 8.4. Calculation of the surface sound pressure level L_pAm

          61. 8.5. Calculation of the sound power level L_WA

          62. 8.6. Corrections to be made to measurements

          63. 8.6.1. Extraneous noise

          64. 8.6.2. Acoustic properties of test area

          65. 8.6.3. Disturbances: temperature, humidity, altitude of site, etc.

          66. 8.6.4. Wind interference

          67. 9. DATA TO BE RECORDED

          68. 9.1. Sound source under test

          69. 9.2. Acoustic environment

          70. 9.3. Instrumentation

          71. 9.4. Acoustic data

          72. 10. DATA TO BE INCLUDED IN THE REPORT LAID DOWN IN SECTION 9

          73. 11. METHOD OF CALCULATING THE AVERAGE LEVEL CORRESPONDING TO THE ROOT MEAN SQUARE VALUE OF THE VARIOUS SOUND PRESSURE LEVELS

          74. ANNEX A

              ARTIFICIAL FLOORING

              1. 1. DIMENSIONS AND MATERIALS

              2. 1.1. Dimensions

              3. 1.2. Materials

              4. Note:

          75. ANNEX B

              ARTIFICIAL FLOORING

              1. EXAMPLE OF MATERIAL AND CONSTRUCTION

              2. For convenience the artificial flooring can be built of abutting...

              3. The cut edges of the chipboard are to be made...

              4. The outsides are bordered by aluminium U-sections of size 3...

              5. (A) panels not to be loaded;

              6. (B) panels to carry the lawnmower and the test personnel....

              7. On the panels mentioned under (B) aluminium T-sections size 3...

              8. The prepared boards are then covered with the absorbtive material...

              9. The panels mentioned under (A) are covered with a wire...

              10. The panels under (B) are covered with wire grating of...

              11. These wire covers are fastened to the aluminium U-sections.

       2. PART 2 METHOD OF DETERMINING AIRBORNE NOISE EMITTED BY LAWNMOWERS (ALSO REFERRED TO AS MOWERS IN THIS SCHEDULE) WITH A CUTTING WIDTH OF MORE THAN 120 CM AT THE OPERATOR POSITION

          1. 1. AIM

          2. 2. SCOPE

          3. 2.1. Type of noise

          4. 2.2. Type of lawnmowers

          5. 3. DEFINITIONS

          6. 3.1. Sound pressure level LpA

          7. 3.2. Equivalent continuous sound pressure level L_Aeq:(t₁, t₂)

          8. 4. CRITERION TO BE USED TO EXPRESS RESULTS

          9. 5. MEASURING INSTRUMENTS

          10. 6. PRESENCE OF THE OPERATOR

          11. 6.1. Clothing specifications

          12. 6.2. Height specifications of the operator(s)

          13. 6.2.1. Seated operator

          14. 7. MICROPHONE LOCATIONS

          15. 7.1. General

          16. 7.2. Microphone locations with operator present

          17. Note:

          18. 8. ENVIRONMENTAL CONDITIONS

          19. 8.1. Measuring site

          20. 8.2. Background noise

          21. 9. INSTALLATION AND OPERATING CONDITIONS

          22. 9.1. General

          23. 10. MEASUREMENTS AND CALCULATION OF RESULTS

          24. 10.1. Measurement interval T(= t₂ − t₁)

          25. 10.2. Determination of the equivalent continuous A-weighted sound pressure level (L_Aeq:(t₁, t₂)

          26. 10.2.1. By integrating p²(t)

          27. 10.2.2. Using the A-weighted sound pressure levels L_pA

          28. 10.3. Measurement of disturbances

          29. 10.4. Corrections to be made to measurements

          30. 10.4.1. Disturbances (temperature, humidity, altitude, etc)

          31. 10.4.2. Background noise

          32. 11. DATA TO BE RECORDED

          33. Note:

    5. SCHEDULE 4

       TABLE OF PERMISSIBLE SOUND POWER LEVELS

    6. SCHEDULE 5

       MODEL INFORMATION DOCUMENT

13. Explanatory Note