{
  "url": "https://openlegislation.uk/lawnmowers-harmonization-of-noise-emission-standards-regulations-1992/schedule-3/paragraph-9.4",
  "json_url": "https://openlegislation.uk/lawnmowers-harmonization-of-noise-emission-standards-regulations-1992/schedule-3/paragraph-9.4.json",
  "legislation": "uksi/1992/168",
  "legislation_title": "The Lawnmowers (Harmonization of Noise Emission Standards) Regulations 1992",
  "legislation_url": "https://openlegislation.uk/lawnmowers-harmonization-of-noise-emission-standards-regulations-1992",
  "path": "schedule/3/paragraph/9.4",
  "kind": "paragraph",
  "number": "9.4",
  "heading": "Acoustic data",
  "text": "(a) shape and dimensions of measuring surface, location of microphones. Numbers of measuring points and wind direction shall be indicated in the diagram required under 9.2(a);\n(b) value of\n10log10SS0(see8.5);\n(c) place, date and time of measurements;\n(d) sound pressure levels recorded at measuring points (see 8.1.1);\n(e) average sound pressure level over measuring surface (see 8.1.2);\n(f) any dB corrections (see 8.6.1, 8.6.3 and 8.6.4);\n(g) surface sound pressure level LpAm (see 8.4);\n(h) environmental constant C (see 8.6.2);\n(i) sound power level (see 8.5);\n(j) directivity index and number of the measuring point at which LpAmax was recorded (see 3.6);\n(k) nature of noise (see 7.3);\n(l) where applicable, sound pressure levels at operator’s position (see Part 2).",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1992/168/schedule/3/paragraph/9.4",
    "retrieved_at": "2026-10-29T14:30:19.442341+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}