OpenLegislation

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

Original text. Later amendments are not shown.

To facilitate the placing of the microphone, it can conveniently be mounted on a frame or the helmet or a shoulder harness worn by the operator. For measurements when the operator is seated, the seat must be adjusted to allow the operator to reach the machine controls comfortably.

  1. 1AIM
  2. 2SCOPE
  3. 2.1Type of noise
  4. 2.2Type of lawnmowers
  5. 3DEFINITIONS
  6. 3.1Sound pressure level LpA
  7. 3.2Equivalent continuous sound pressure level LAeq:(t1, t2)
  8. 4CRITERION TO BE USED TO EXPRESS RESULTS
  9. 5MEASURING INSTRUMENTS
  10. 6PRESENCE OF THE OPERATOR
  11. 6.1Clothing specifications
  12. 6.2Height specifications of the operator(s)
  13. 6.2.1Seated operator
  14. 7MICROPHONE LOCATIONS
  15. 7.1General
  16. 7.2Microphone locations with operator present
  17. 8ENVIRONMENTAL CONDITIONS
  18. 8.1Measuring site
  19. 8.2Background noise
  20. 9INSTALLATION AND OPERATING CONDITIONS
  21. 9.1General
  22. 10MEASUREMENTS AND CALCULATION OF RESULTS
  23. 10.1Measurement interval T(= t2 − t1)
  24. 10.2Determination of the equivalent continuous A-weighted sound pressure level (LAeq:(t1, t2)
  25. 10.2.1By integrating p2(t)
  26. 10.2.2Using the A-weighted sound pressure levels LpA
  27. 10.3Measurement of disturbances
  28. 10.4Corrections to be made to measurements
  29. 10.4.1Disturbances (temperature, humidity, altitude, etc)
  30. 10.4.2Background noise
  31. 11DATA TO BE RECORDED