{
  "url": "https://openlegislation.uk/noise-emission-in-the-environment-by-equipment-for-use-outdoors-amendment-and-transitional-regulations-2025/schedule",
  "json_url": "https://openlegislation.uk/noise-emission-in-the-environment-by-equipment-for-use-outdoors-amendment-and-transitional-regulations-2025/schedule.json",
  "legislation": "uksi/2025/1073",
  "legislation_title": "The Noise Emission in the Environment by Equipment for Use Outdoors (Amendment and Transitional) Regulations 2025",
  "legislation_url": "https://openlegislation.uk/noise-emission-in-the-environment-by-equipment-for-use-outdoors-amendment-and-transitional-regulations-2025",
  "path": "schedule",
  "kind": "schedule",
  "number": null,
  "heading": null,
  "text": "“Schedule 6A\nAnnex III to the Directive - METHODS TO MEASURE AIRBORNE NOISE EMITTED BY EQUIPMENT FOR USE OUTDOORS\nRegulation 8\nIntroduction\nThis Schedule contains the methods to measure airborne noise that are to be used to determine the sound power levels of equipment for use outdoors.\nPart A of this Schedule lays down the basic noise emission standard and general supplements to the basic noise emission standard to measure the sound pressure level on a measurement surface enveloping the noise source and to calculate the sound power level produced by that source.\nPart B of this Schedule lays down the equipment specific noise test code which is presented either as a reference to a specific standard or as a description of the applicable testing and operating conditions, including:\n(a) the test environment;\n(b) the value of the environmental correction (K2A);\n(c) the shape and dimensions of the measurement surface;\n(d) the number and position of microphones to be used;\n(e) requirements relating to mounting and installation of the equipment;\n(f) a method to calculate the resulting sound power levels in the event that several tests with different operating conditions are to be used.\nWhen testing specific types of equipment, manufacturers or their authorised representatives shall use the basic noise emission standard and the general supplements of Part A of this Schedule, and the equipment-specific noise test code laid down in Part B. Noise test codes in Part B are meant to supplement the specifications laid down in Part A taking into account the characteristics of the different equipment categories. When noise test codes in Part B provide for the possibility to choose between different alternative technical solutions, manufacturers or their authorised representatives shall use those that are in line with the specifications laid down in Part A. In case of conflict between Part A and Part B, Part B provisions shall take precedence.\nWhere the noise test codes laid down in Part B, or in the standards referred to in Part B, would not be applicable for some models of equipment within the equipment category, manufacturers or their authorised representatives shall determine the guaranteed sound power level in accordance with the basic noise emission standard and the applicable supplements indicated in Part A.\nPart A\nBASIC NOISE EMISSION STANDARD\nManufacturers or their authorised representatives shall use the basic noise emission standard EN ISO 3744:2010 to determine the sound power level LWA, subject to the general supplements laid down in this Part A. Manufacturers or their authorised representatives shall apply all clauses in EN ISO 3744:2010 unless otherwise stated in this Part A, or in the applicable noise test code laid down in Part B of this Schedule.\n1. OPERATION OF THE NOISE SOURCE DURING THE TEST\n1.1. Fan speed\nAny fans fitted to the engine of the equipment or its hydraulic system shall operate during the test. Manufacturers or their authorised representatives shall set the fan speed in accordance with the requirements laid down in points (a) to (d), as applicable, and state that fan speed in the test report and use it in further measurements. Fans shall not operate in reverse mode during tests.\n(a) Fan drive directly connected to the engine or its hydraulic system: A fan drive that is directly connected to the engine or its hydraulic equipment shall operate during the test.\n(b) Fan drive with several distinct speeds: A fan that can work at several distinct speeds shall be tested in either of the following ways:\n(i) at its maximum working speed;\n(ii) in a first test with the fan set at zero speed, and in a second test with the fan set at maximum speed.\nFor the purposes of point (ii), the resulting A-weighted surface sound pressure level LpA shall be calculated by combining both test results using the following equation:\nL p A = 10 lg (0,3 × 10 0 , 1 L p A , 0 % + 0,7 × 10 0 , 1 L p A , 100 % ) where:\nLpA,0% is the A-weighted surface sound pressure level determined with the fan set at zero speed;\nLpA,100% is the A-weighted surface sound pressure level determined with the fan set at maximum speed;\n(c) Fan drive with continuous variable speed: A fan that can work at continuous variable speed shall be tested in accordance with point 1.1(b) or with the fan speed set at no less than 70 % of the maximum speed. Visco-static fans, which are automatically regulated by the engine temperature, shall be considered to work at continuous variable speed irrespective of the origin of the control;\n(d) Equipment with more than one fan: Where a machine is equipped with more than one fan, all fans shall run under the conditions specified in (a), (b) or (c), as applicable.\n1.2. Test of powered equipment free of load\nBefore measuring the noise emitted by powered equipment free of load, manufacturers or their authorised representatives shall warm up the engine and hydraulic system of the equipment in accordance with the instructions of use and shall observe the safety requirements.\nManufacturers or their authorised representatives shall measure the noise with the equipment in stationary position, without operating the working equipment or travelling mechanism. For the purpose of the measurement, the engine shall idle at no less than the rated speed corresponding to the net power.\nWhere the machine is powered by a generator or from the mains, the frequency of the supply current, specified for the motor by the manufacturer, shall be stable at ± 1 Hz if the machine is equipped with an induction motor, and the supply voltage at ± 1% of the rated voltage if the machine is equipped with a commutator motor. The supply voltage shall be measured at the plug of a non-detachable cable or cord, or at the inlet of the machine if a detachable cable is provided. The waveform of the current supplied from the generator shall be similar to that obtained from the mains.\nWhere multiple voltage ranges are labelled at the machine, manufacturers or their authorised representatives shall take the measurements at the highest labelled voltage range. If the voltage range is 220-240 V, the test shall be carried out at 230 V.\nIf the machine is powered by one or more batteries, the batteries shall be charged to at least 70% of its capacity.\nThe rated speed used, and the corresponding net power, shall be stated by the manufacturers or their authorised representatives in the test report.\nWhere the equipment has several engines, those engines shall work simultaneously during the measurements, unless that is not possible, in which case the noise emissions of each possible combination of engines shall be measured.\n1.3. Test of powered equipment under load\nBefore measuring the noise emitted by powered equipment under load, manufacturers or their authorised representatives shall warm up the engine (driving device) and hydraulic system of the equipment in accordance with the instructions of use, and shall observe safety requirements. The manufacturers or their authorised representatives shall not operate a signalling device, such as a warning horn or reversing alarm, during the measurement.\nManufacturers or their authorised representatives shall record the speed or velocity of the equipment during the measurement and state that speed or velocity in the test report.\nWhere the equipment is fitted with several engines or aggregates, those engines or aggregates shall work simultaneously during the measurements, unless that is not possible, in which case manufacturers shall measure noise of each possible combination of engines or aggregates.\nManufacturers or their authorised representatives shall lay down specific operating conditions for each type of equipment under load. The specific operating conditions shall, as much as possible, produce effects and stresses similar to those encountered under actual working conditions.\n1.4. Test of hand-operated equipment\nManufacturers or their authorised representatives shall lay down conventional operating conditions for each type of hand-operated equipment that produce effects and stresses similar to those undergone under actual working conditions.\n2. DETERMINATION OF THE SURFACE SOUND PRESSURE LEVEL\nManufacturers or their authorised representatives shall determine the surface sound pressure level at least three times. If at least two of the determined values do not differ by more than 1 dB, further measurements will not be necessary. Where that is not the case, manufacturers or their authorised representatives shall continue the measurements until they obtain two values that differ by no more than 1 dB. The A-weighted surface sound pressure level that manufacturers or their authorised representatives are to use for calculating the sound power level shall be the arithmetic mean of the two highest values that do not differ by more than 1 dB.\nWhere possible, manufacturers or their authorised representatives shall take the noise measurements at all the microphone positions simultaneously. This is especially important for dynamic tests. Where that is not possible, manufacturers or their authorised representatives shall take special care to ensure stable conditions in the test environment and to minimise the risks of including undesired variations in the noise emitted by the machine or by any other factors, including background noise and wind speed.\n3. INFORMATION TO BE REPORTED\nThe test report, which is required within the technical documentation provided for in Schedule 8 (Annex V to the Directive), paragraph 3, Schedule 9 (Annex VI to the Directive), paragraph 3, Schedule 10 (Annex VII to the Directive), paragraph 2 and Schedule 11 (Annex VIII to the Directive), paragraphs 3.1 and 3.3, shall contain the technical data necessary to identify the noise source under test, the noise test code and the acoustical data used for and obtained during the test.\nThe value of the A-weighted sound power level of the noise source under test that is to be reported shall be rounded to the nearest whole number (less than 0,5 use the lower whole number; if it is greater than or equal to 0,5 use the higher whole number).\n4. ENVIRONMENTAL CORRECTION K2A\nManufacturers or their authorised representatives shall determine the environmental correction K2A in accordance with EN ISO 3744:2010, Section 4.3.\nIf K2A ≤ 0,5 dB, it can be neglected.\nIf K2A > 4 dB, the test environment does not comply with the requirements of these Regulations and shall be modified.\nManufacturers or their authorised representatives shall use the specifications for the environmental correction laid down in the noise test code for specific equipment referred to in Part B of this Schedule where such specifications exist.\nPart B\nNOISE TEST CODES FOR SPECIFIC EQUIPMENT\n0. EQUIPMENT THAT IS TESTED FREE OF LOAD\nTest area\nReflecting surface of concrete or non-porous asphalt\nEnvironmental correction K2A\nK2A = 0\nMeasurement surface/number of microphone positions/measuring distance:\n(a) If the largest dimension of the reference parallelepiped does not exceed 8 m: hemisphere/six microphone positions in accordance with EN ISO 3744:2010, Annex F.\n(b) If the largest dimension of the reference parallelepiped exceeds 8 m: parallelepiped in accordance with ISO 3744:2010 with measurement distance d = 1 m.\nTest free of load\nThe noise tests shall be carried out in accordance with Part A of this Schedule, item 1.2\nPeriod(s) of observation/determination of resulting sound power level if more than one operating condition is used\nThe period of observation shall be at least 15 s or at least 3 operation cycles of the machine.\n1. AERIAL ACCESS PLATFORMS WITH COMBUSTION ENGINE\nEN 280-1:2022, clause 4.12.2\n2. BRUSH CUTTERS\nEN ISO 22868:2021\n3. BUILDERS’ HOISTS FOR THE TRANSPORT OF GOODS\nSee No 0.\nThe geometrical centre of the engine shall be positioned above the centre of the hemisphere. The lift shall move without load and leave the hemisphere – if necessary – in direction of point 1.\n4. BUILDING SITE BAND SAW MACHINES\nEN ISO 19085-16:2021, clause 6.2.2\nThe measurement method of this standard based on EN ISO 3744:2010 shall be applied.\n5. BUILDING SITE CIRCULAR SAW BENCHES\nMeasurement surface/number of microphone positions/measuring distance\nISO 7960:1995, Annex A, measurement distance d = 1 m.\nTest under load\nISO 7960:1995, Annex A (point A2(b) only).\nPeriod of observation\nISO 7960:1995, Annex A.\n6. CHAIN SAWS, PORTABLE\n(a) Combustion-engine driven equipment\nEN ISO 22868:2021\n(b) Electric-motor operated equipment\nEN 62841-4-1:2020, Annex I\n7. COMBINED HIGH PRESSURE FLUSHERS AND SUCTION VEHICLES\nWhere both devices can be operated simultaneously, they shall be operated in accordance with Nos 26 and 52 of this Part B. If not, the noise emissions of both devices shall be measured separately and the higher values shall be retained.\n8. COMPACTION MACHINES\n(a) Vibratory plates and vibratory rammers\nEN 500-4: 2011, clause 5.10.1\n(b) Rollers\nEN 474-13:2022, clause 4.6\n9. COMPRESSORS\nEN ISO 2151:2008\nThe period of observation shall be at least 15 s.\n10. CONCRETE-BREAKERS AND PICKS, HAND HELD\n(a) Combustion-engine driven equipment\nMeasurement surface/number of microphone positions/measuring distance\nHemisphere/six microphone positions in accordance with EN ISO 3744:2010, Annex F and the following table, depending on the mass of equipment as given in the following table:\nMass of equipment m (in kg)\nRadius of hemisphere (in m)\nz for microphone positions 2, 4, 6 and 8 (in m)\nm < 10\n2\n0,75\nm ≥ 10\n4\n1,50\nMounting of equipment\nAll appliances shall be tested in the vertical position.\nIf the test appliance has got an air exhaust, its axis shall be equidistant from two microphone positions. The noise of the power supply shall not influence the measurement of the noise emission from the tested appliance.\nSupport of the appliance\nThe appliance shall be coupled during the test run to a tool embedded in a cube-shaped concrete block placed in a concrete pit, sunk into the ground.\nAn intermediate steel piece may be inserted during tests between the appliance and the support tool. This intermediate piece shall form a stable structure between the appliance and the support tool. Figure 10.1 incorporates those requirements.\nBlock characteristics\nThe block shall take the shape of a cube of 0,60 m ± 2 mm long at the edge and as regular as possible. It shall be made of reinforced concrete and thoroughly vibrated in layers of up to 0,20 m to avoid excessive sedimentation.\nQuality of the concrete\nThe quality of the concrete shall correspond to C 50/60 of EN 206:2013+A2:2021.\nThe cube shall be reinforced by 8 mm-diameter steel rods without ties, each rod being independent of the other. The design concept is illustrated in figure 10.2.\nSupporting tool\nThe tool shall be sealed into the block and shall consist of a rammer between 178 mm and 220 mm diameter and a tool chuck component identical to that normally used with the appliance being tested and complying with ISO 1180:1983/Add 1:1985, but sufficiently long to enable the practical test to be carried out.\nSuitable treatment shall be carried out to integrate the two components. The tool shall be fixed in the block so that the bottom of the rammer is 0,30 m from the upper face of the block (see figure 10.2).\nThe block shall remain mechanically sound, particularly at the point where the supporting tool and the concrete meet. Before and after each test, it shall be verified that the tool sealed in the concrete block is integrated into it.\nPositioning of the cube\nThe cube shall be set in a pit cemented throughout, covered by a screening slab of at least 100 kg/m2, as indicated in figure 10.3, so that the upper surface of the screening slab is flush with the ground. To avoid any parasitic noise, the block shall be insulated against the bottom and sides of the pit by elastic blocks, the cut-off frequency of which shall not be more than half the striking rate of the appliance tested, expressed as strokes per second.\nThe opening in the screening slab through which the tool chuck component passes shall be as small as possible and sealed by a flexible sound-proof joint.\nTest under load\nThe appliance tested shall be connected to the supporting tool.\nThe test appliance shall be operated in stable conditions having the same acoustical stability as in normal service.\nThe test appliance shall be operated at the maximum power specified in the instructions supplied to the purchaser.\nPeriod of observation\nThe period of observation shall be at least 15 s.\nFigure 10.1 - Schematic diagram of the intermediate piece\nFigure 10.2 - Test block\nFigure 10.3 - Testing device\nThe value of A shall be such that the screening slab resting on the elastic joint J is flush with the ground.\n(b) Electric-motor operated equipment\nEN IEC 62841-2-6:2020, EN IEC 62841-2-6:2020/A11:2020, Annex I, clause I.2\n(c) Pneumatic or hydraulic driven equipment\nSame as combustion-engine driven equipment.\n11. CONCRETE OR MORTAR MIXERS\nTest under load\nThe mixing device (drum) shall be filled to its rated capacity with sand of granulation 0 to 3 mm, the humidity shall be 4 to 10 %.\nThe mixing device shall be operated at least at the rated speed.\nPeriod of observation\nThe period of observation shall be at least 15 s.\n12. CONSTRUCTION WINCHES\n(a) Combustion-engine driven equipment\nSee No 0.\nThe geometrical centre of the engine shall be positioned above the centre of the hemisphere; the winch shall be connected but no load shall be applied.\n(b) Electric-motor operated equipment\nEN 14492-2:2019, Annex M.\n13. CONVEYING AND SPRAYING MACHINES FOR CONCRETE AND MORTAR\nEN 12001:2012, Annex C\n14. CONVEYOR BELTS\nSee No 0.\nThe geometrical centre of the engine shall be positioned above the centre of the hemisphere. The belt shall move without load and leave the hemisphere, if necessary, in the direction of point 1.\n15. COOLING EQUIPMENT ON VEHICLES\nTest under load\nThe cooling equipment shall be installed in a real or simulated cargo space and the sound level shall be measured in a stationary position where, according to the instructions supplied to the purchaser, the height of the cooling equipment is representative of the intended installation requirements. The power source of the cooling equipment shall operate at the rate that causes the maximum speed of the cooling compressor and the fan specified in the instructions. If the cooling equipment is intended to be powered by the driving engine of the vehicle, the engine shall not be used during the measurement and the cooling equipment shall be connected to a suitable electrical power source. Removable tractor units shall be removed during the measurement.\nThe sound level of cooling equipment installed in cargo-space refrigeration units which have a choice of different power sources shall be measured separately for each power source. The measurement results reported shall as a minimum reflect the mode of operation which leads to the maximum noise output.\nPeriod of observation\nThe period of observation shall be at least 15 s.\n16. DOZERS\nISO 6395:2008 with the operating and testing conditions set out in Annex C of that standard.\n17. DRILL RIGS\n(a) Mobile drill rigs\nEN 16228-2:2014+A1:2021, clause 5.12\n(b) Horizontal directional drilling equipment\nEN 16228-3:2014+A1:2021, clause 5.15\n(c) Interchangeable auxiliary equipment for drilling\nEN 16228-7:2014+A1:2021, clause 5.3\n(d) Any other equipment for drilling\nEN 16228-1:2014+A1:2021, clause 5.27.2.2\n18. DUMPERS\nISO 6395:2008 with the operating and testing conditions set out in Annex F of that standard.\n19. EQUIPMENT FOR LOADING AND UNLOADING TANKS OR SILOS ON TRUCKS\nSee No 9 for compressors or vacuum pumps.\nSee No 56 for liquid pumps.\n20. EXCAVATORS\nISO 6395:2008 with the operating and testing conditions set out in Annex B of that standard.\n21. EXCAVATORS-LOADERS\nISO 6395:2008 with the operating and testing conditions set out in Annex E of that standard.\n22. GLASS RECYCLING CONTAINERS\nFor the purposes of this noise test code, the single-event time-integrated sound pressure level LE, as defined in EN ISO 3744:2010 point 3.4, shall be used in measuring the sound pressure level at the microphone positions.\nEnvironmental correction K2A\nMeasurement in the open air\nK2A = 0\nMeasurements indoors\nThe value of the constant K2A, determined in accordance with EN ISO 3744:2010, Annex A, shall be ≤ 2,0 dB in which case K2A shall be disregarded.\nOperating conditions during test\nThe noise measurement shall be carried out during a complete cycle beginning with the empty container and completed when 120 glass bottles have been thrown into the container.\nThe glass bottles are defined as follows:\ncapacity: 75 cl;\nmass: 370 ± 30 g.\nThe testing operator shall hold each glass bottle by its neck and with its bottom towards the filling aperture and then push it gently inside through the filling aperture in the direction of the centre of the container, avoiding if possible that the bottle hits the walls. Only one filling aperture, which is the one nearest to microphone position 12, shall be used for throwing the bottles.\nPeriod(s) of observation/determination of resulting sound power level if more than one operating condition is used\nThe A-weighted single-event time-integrated sound pressure level shall be simultaneously measured at the six microphone positions for each glass bottle thrown into the container.\nThe A-weighted single-event time-integrated sound power level averaged over the measurement surface shall be calculated in accordance with EN ISO 3744:2010, point 8.2.2.\nThe A-weighted single-event time-integrated sound pressure level averaged over all 120 throwings of glass bottles shall be calculated as the logarithmic mean of the A-weighted single-event time-integrated sound pressure levels, averaged over the measurement surface.\n23. GRADERS\nISO 6395:2008 with the operating and testing conditions set out in Annex G of that standard.\n24. GRASS TRIMMERS/GRASS EDGE TRIMMERS\nSee No 2.\n25. HEDGE TRIMMERS\n(a) Combustion-engine driven equipment\nEN ISO 22868:2021\n(b) Electric-motor operated equipment\nEN IEC 62841-4-2:2019, Annex I, clause I.2\n26. HIGH-PRESSURE FLUSHERS\nTest under load\nThe high-pressure flusher shall be tested in a stationary position. The engine and auxiliary units shall operate at the speed provided by the manufacturer for the operation of the working equipment. The high-pressure pumps shall be operated at the maximum speed and operating pressure provided by the manufacturer. Using an adapted nozzle, the pressure reduction valve shall be just on the point of reacting. The flow noise of the nozzle shall not have any influence on the results of the measurements.\nPeriod of observation\nThe period of observation shall be at least 30 s.\n27. HIGH-PRESSURE WATER JET MACHINES\n(a) Equipment with pressure rating ≤ 35 MPa\nEN 60335-2-79:2012, Annex CC\n(b) Equipment with pressure rating > 35 MPa\nEN 1829-1:2010, clause 6.8\n28. HYDRAULIC HAMMERS\nMeasurement surface/number of microphone positions/measuring distance\nHemisphere/six microphone positions in accordance with EN ISO 3744:2010, Annex F/r = 10 m.\nMounting of the equipment\nFor the test, the hammer shall be attached to a carrier and a special test block structure shall be used. Figure 28.1 gives the characteristics of this structure and figure 28.2 shows the position of the carrier.\nCarrier\nThe carrier for the test hammer shall meet the requirements of the test hammer’s technical specifications especially in weight range, hydraulic output power, supply oil flow and return line back pressure.\nMounting\nMechanical mounting as well as connections (hoses, pipes, etc.) shall correspond to specifications given in the hammer’s technical data. All significant noise caused by pipes and various mechanical components needed for installation shall be eliminated. All component connections shall be well tightened.\nHammer stability and static hold force\nThe hammer shall be firmly held down by the carrier to give the same stability as that existing under normal operating conditions. The hammer shall be operated in an upright position.\nTool\nA blunt tool shall be used in the measurements. The length of the tool shall meet the requirements referred to in figure 28.1 (test block).\nTest under load\nHydraulic input power and oil flow\nOperating conditions of the hydraulic hammer shall be appropriately adjusted, measured and reported along with the corresponding technical specification values. The hammer under test shall be used in such way that 90% or more of the maximum hydraulic input power and oil flow of the hammer can be reached.\nCare shall be taken that the total uncertainty of the measurement chains of ps and Q is kept within ± 5%, in order to ensure the hydraulic input power determination within ± 10% accuracy. Assuming linear correlation between hydraulic input power and emitted sound power, that would mean a variation of less than ± 0,4 dB in the determination of the sound power level.\nAdjustable components having effect on the hammer power\nPre-settings of all accumulators, pressure central valves and other possible adjustable components shall meet the values given in technical data. If more than one fixed impact rate is optional, measurements shall be made using all settings. Minimum and maximum values shall be presented.\nQuantities to be measured\nps The mean value of the hydraulic supply fine pressure during the hammer’s operation, including at least 10 blows.\nQ The mean value of the breaker inlet oil flow measured simultaneously with ps.\nT The oil temperature shall lie between + 40/ + 60 °C during measurements. The temperature of the hydraulic breaker body shall be stabilised to normal operating temperature before starting the measurements.\nPA The prefill gas pressures of all accumulators shall be measured in a static situation (breaker not operating) at stable ambient temperature of +15/+25°C. The measured ambient temperature shall be recorded with the measured accumulator prefill gas pressure.\nParameters to be evaluated from the measured operating parameters\nPIN Hydraulic input power of the breaker, PIN = ps Q\nHydraulic supply line pressure measurement, ps:\nps shall be measured as close to the breaker IN-port as possible;\nps shall be measured with a pressure gauge (minimum diameter: 100 mm; accuracy class ± 1,0% FSO).\nBreaker inlet oil flow, Q:\nQ shall be measured from the supply pressure line as close to the breaker IN-port as possible;\nQ shall be measured with an electric flowmeter (accuracy class ± 2,5 % of the flow reading).\nMeasuring point of the oil temperature, T:\nT shall be measured from the oil tank of the carrier or from the hydraulic line connected to the hammer. The measuring point shall be specified in the report;\nThe accuracy of the temperature reading shall lie within ± 2 °C of the actual value.\nPeriod of observation/determination of resulting sound power level\nThe period of observation shall be at least 15 s.\nThe measurements shall be repeated three times, or more if necessary. The final result shall be calculated as the arithmetic mean of the two highest values that do not differ by more than 1 dB.\nFigure 28.1\nFigure 28.2\nDefinitions\nd Tool diameter (mm);\nd1 Anvil diameter, 1 200 ± 100 mm;\nd2 Inner diameter of the anvil support structure, ≤ 1 800 mm;\nd3 Diameter of the test block deck, ≤ 2 200 mm;\nd4 Diameter of the tool opening in the deck, ≤ 350 mm;\nd5 Diameter of the tool seal, ≤ 1 000 mm;\nh1 Visible tool length between the lowest part of the housing and tool seal upper surface (mm), h1 = d ± d/2;\nh2 Tool seal thickness above the deck, ≤ 20 mm (if the tool seal is located below the deck, its thickness shall not be limited; it may be made of foam rubber);\nh3 Distance between deck upper surface and anvil upper surface, 250 ± 50 mm;\nh4 Isolating foam rubber deck seal thickness, ≤ 30 mm;\nh5 Anvil thickness, 350 ± 50 mm;\nh6 Tool penetration, ≤ 50 mm.\nIf the quadratic shape of the test block structure is used, the maximum length dimension shall equal 0,89 × corresponding diameter.\nThe empty space between the deck and the anvil may be filled with elastic foam rubber or other absorption material, density < 220 kg/m3.\n29. HYDRAULIC POWER PACKS\nMounting of equipment\nThe hydraulic power pack shall be installed on the reflecting plane; skid-mounted hydraulic power packs shall be placed on a support 0,40 m high, unless otherwise required by the manufacturer’s conditions of installation.\nTest under load\nDuring testing, no tools shall be coupled to the hydraulic power pack.\nThe hydraulic power pack shall be brought to its steady state within the range specified by the manufacturer. It shall operate at its nominal speed and its nominal pressure. The nominal speed and pressure shall be those appearing in the instructions supplied to the purchaser.\nPeriod of observation\nThe period of observation shall be at least 15 s.\n30. JOINT CUTTERS\n(a) Pedestrian-controlled floor-sawing machines\nEN 13862:2021, clause 4.10.2\n(b) Portable, hand-held internal combustion engine-driven equipment, mounted on a mobile support, to be used as floor saws\nEN ISO 19432-1:2020, clause 4.19.2\n(c) Other joint cutters\nTest under load\nThe joint cutter shall be equipped with the largest possible blade specified by the manufacturer in the instructions supplied to the purchaser. The engine shall operate at its maximum speed with the blade idling.\nPeriod of observation\nThe period of observation shall be at least 15 s.\n31. LANDFILL COMPACTORS\nISO 6395:2008 with the operating and testing conditions set out in Annex H of that standard.\n32. LAWNMOWERS\n(a) Combustion engine powered rotatory and cylinder lawnmowers\nEN ISO 5395-1:2013, EN ISO 5395-1:2013/A1:2018, clause 4.3, second indent.\nEnvironmental correction K2A\nIf K2A ≤ 0,5 dB, it can be neglected.\n(b) Electric-motor operated rotatory and cylinder stand-on, ride-on, and pedestrian controlled lawnmowers\nEN IEC 62841-4-3:2021, EN IEC 62841-4-3:2021/A11:2021, Annex I, clause I.2\n33. LAWN TRIMMERS/LAWN EDGE TRIMMERS\nEN 50636-2-91:2014, Annex CC\n34. LEAF BLOWERS\n(a) Combustion-engine driven equipment\nEN ISO 22868:2021\n(b) Electric-motor operated equipment\nEN 50636-2-100:2014, Annex CC\n35. LEAF COLLECTORS\nSee No 34.\n36. LIFT TRUCKS\nEN 12053:2001+A1:2008\n37. LOADERS\nISO 6395:2008 with the operating and testing conditions set out in Annex D of that standard.\n38. MOBILE CRANES\nEN 13000:2010+A1:2014, clause 5.3\n39. MOBILE WASTE CONTAINERS\nTest area\nReflecting surface of concrete or non-porous asphalt\nLaboratory room which provides a free field over a reflecting plane\nEnvironmental correction K2A\nMeasurement in the open air:\nK2A = 0\nMeasurement indoors:\nThe value of the constant K2A, determined in accordance with EN ISO 3744:2010, Annex A, shall be ≤ 2,0 dB, in which case K2A shall be disregarded.\nMeasurement surface/number of microphone positions/measuring distance\nHemisphere/six microphone positions in accordance with EN ISO 3744:2010, Annex F/r = 3 m.\nOperating conditions during test\nAll the measurements shall be carried out with an empty container.\nTest No 1: Free shutting down of the lid along the container body\nTo minimise the operator’s influence on the measurements, the operator shall stand at the back side of the container (hinge side). The lid shall be released by its middle, to prevent warping during its fall.\nThe measurement shall be carried out during the following cycle, repeated 20 times:\ninitially, the lid shall be raised vertically;\nthe lid shall be released forward, if possible without giving an impulse, with the operator at the back of the container, unmoving until the lid is shut;\nafter complete shutting, the lid shall be raised to its initial position.\nNote: If necessary, the operator may temporarily move to raise the lid.\nTest No 2: Complete opening of the lid\nTo minimise the operator’s influence on the measurements, the operator shall stand at the back side of the container (hinge side) for the four-wheel containers, or on the right side of the container (between microphone position 10 and microphone position 12) for the two-wheel containers. The lid shall be released by its middle or as near as possible to its middle.\nTo prevent any moving of the container, wheels shall be locked during the test. For the two-wheel containers, and to prevent any bounce of the container, the operator may maintain it by placing a hand on the top rim.\nThe measurement shall be carried out during the following cycle:\ninitially, the lid shall be opened horizontally;\nthe lid shall be released without giving an impulse;\nafter complete opening, and before a possible rebound, the lid shall be raised to its initial position.\nTest No 3: Rolling of the container over an artificial irregular track\nFor this test, an artificial test track, simulating irregular ground, shall be used. This test track shall consist of two parallel strips of steel mesh (6 m long and 400 mm wide), fastened in the reflecting plane approximately every 20 cm. The distance between the two strips shall adapted to the type of container to allow the wheels to roll all over the whole length of the track. The mounting conditions shall ensure a flat surface. If necessary, the track shall be fastened on the ground with resilient material to avoid emission of parasitic noise.\nNote: Every strip may be composed of several 400 mm wide elements fitted together.\nAn example of adequate track is given in figures 39.1 and 39.2. The operator shall be situated at the lid hinge side.\nThe measurement shall be carried out while the operator draws the container along the artificial track, with a constant speed of approximately 1 m/s, between points A and B (4,24 m distance – see figure 39.3) when the wheel axle, for a 2-wheel container, or the first wheel axle for a 4-wheel container, reaches point A or point B. This procedure shall be repeated three times in each direction.\nDuring the test, for a 2-wheel container, the angle between the container and the track shall be 45°. For a 4-wheel container, the operator shall ensure an appropriate contact of all the wheels with the track.\nPeriods of observation/determination of resulting sound power level if more than one operating condition is used\nTest Nos 1 and 2: Free shutting down of the lid along the container body and complete opening of the lid\nIf possible, the measurements shall be carried out simultaneously at the six microphone positions. Otherwise, the sound levels measured at each microphone position shall be classified in increasing order and the sound power levels shall be calculated by associating the values at each microphone position according to their row.\nThe A-weighted single-event time-integrated sound pressure level shall be measured for each of the 20 shuttings and the 20 openings of the lid at each measurement point. The sound power levels LWAshutting and LWAopening shall be calculated from the quadratic mean of the five highest values among those obtained.\nTest No 3: Rolling the container over an artificial irregular track\nThe period of observation T shall be equal to the duration necessary to cover the distance between point A and point B on the track.\nThe sound power level LWArolling shall be equal to the mean of six values differing by less than 2 dB. If this criterion is not fulfilled with six measurements, the cycle shall be repeated as often as necessary.\nThe resulting sound power level shall calculated as follows:\nL W A = 10 log 1/3 ( 10 0 , 1 L W A s h u t t i n g + 10 0 , 1 L W A o p e n i n g + 10 0 , 1 L W A r o l l i n g ) Figure 39.1 - Drawing of the rolling track\nFigure 39.2 - Detail of construction and mounting of the rolling track\nFigure 39.3 - Measurement distance\n40. MOTOR HOES\nSee No 32.\nThe tool shall be disconnected or removed during measurement.\n41. PAVER-FINISHERS\nEN 500-6:2006+A1:2008, clause 5.17\n42. PILING EQUIPMENT\n(a) Foundation equipment\nEN 16228-4:2014+A1:2021, clause 5.8\n(b) Interchangeable auxiliary equipment for piling\nEN 16228-7:2014+A1:2021, clause 5.3\n(c) Any other equipment for piling\nEN 16228-1:2014+A1:2021, clause 5.27.2.2\n43. PIPELAYERS ISO\n6393:2008\n44. PISTE CATERPILLARS\nISO 6393:2008, with the same procedures and operating conditions described for tractor-dozers. The test site surface shall be the hard reflecting plane (5.3.2 in ISO 6393:2008).\n45. POWER GENERATORS\nEN ISO 8528-10:2022\nThe measurement method of this standard based on EN ISO 3744:2010 shall be applied.\n46. POWER SWEEPERS\n(a) Road sweepers\nEN 17106-2:2021, clause 4.3\n(b) Other power sweepers for use out-doors\nEN 60335-2-72:2012, Annex DD\n47. REFUSE COLLECTION VEHICLES\nEN 1501-4:2023\n48. ROAD MILLING MACHINES\nEN 500-2:2006+A1:2008, clause 5.17\n49. SCARIFIERS\n(a) Combustion-engine driven equipment\nEN 13684:2018, clause 5.16.2\n(b) Electric-motor operated equipment\nEN IEC 62841-4-7:2022, EN IEC 62841-4-7:2022/A11:2022, Annex I, clause I.2\n50. SHREDDERS/CHIPPERS\n(a) Garden hand-fed shredders/chippers\n(i) Combustion-engine driven equipment EN 13683:2003+A2:2011, clause 5.10.2 EN 13683:2003+A2:2011/AC:2013\n(ii) Electric-motor operated equipment EN 50434:2014, clause 20.107.2\n(b) Forestry horizontally hand-fed wood chippers\nEN 13525:2020, clause 5.5\n(c) Forestry vertically hand-fed wood chippers, forestry mechanically (vertically and horizontally) loaded wood chippers and other shredders/chippers\nTest under load\nThe shredder/chipper shall be tested chipping one or more pieces of wood.\nThe work-cycle shall consist of chipping a round piece of wood (dry pine or plywood) of at least 1,5 m length, that is sharpened at one end and has a diameter approximately equal to the maximum that the shredder/chipper is designed to accept specified in the instructions supplied to the purchaser.\nPeriod of observation/determination of resulting sound power level\nThe period of observation shall end when there is no more material in the chipping area, but it shall not exceed 20 s. If both operation conditions are possible, the higher sound power level shall be retained.\n51. SNOW-REMOVING MACHINES WITH ROTATING TOOLS\n(a) Road operation snow clearing machines\nEN 17106-3-1:2021, clause 4.2\n(b) Pedestrian-controlled and ride-on snow throwers\n(i) Combustion-engine driven equipment EN ISO 8437-4:2021, Annex A\n(ii) Electric-motor operated equipment: The machine shall be operated at maximum speed at no-load for 10 min before the test starts. The collector or impeller devices shall be lubricated in accordance with manufacturer’s instructions. During the test, the collector or impeller shall be engaged and unloaded. The test shall be carried out stationary at the maximum speed at no-load. Machines shall be measured by placing them on the surface in such a way that the projection of the geometrical centre of their main parts (excluding handle, etc.) coincides with the origin of the coordinate system of the microphone positions. If an artificial surface is used, it shall be placed so that its geometrical centre also coincides with the origin of the coordinate system of the microphone positions. The longitudinal axis of the machine shall be on the x-axis. The measurement shall be carried out without an operator. During measurements, the machine shall operate under stable conditions. Once the noise emission is steady, the measurement time interval shall be at least 15 s. If measurements are made in octave or one-third octave frequency bands, the minimum period of observation shall be 30 s for the frequency bands centred on or below 160 Hz, and 15 s for the frequency bands centred on or above 200 Hz.\n52. SUCTION VEHICLES\nTest under load\nThe suction vehicle shall be tested in a stationary position. The engine and auxiliary units shall operate at the speed provided by the manufacturer for the operation of the working equipment. The vacuum pumps shall operate at the maximum speed provided by the manufacturer. The suction equipment shall be operated in such a way that the internal pressure is equal to atmospheric pressure (0% vacuum). The flow noise of the suction nozzle shall not have any influence on the results of the measurements.\nPeriod of observation\nThe period of observation shall be at least 15 s.\n53. TOWER CRANES\nEN 14439:2006+A2:2009, clause 6.4.1\n54. TRENCHERS\nISO 6393:2008\n55. TRUCK MIXERS\nEN 12609:2021, Annex B\n56. WATER PUMP UNITS\nEN ISO 20361:2019, EN ISO 20361:2019/A11:2020\nThe measurement method of this standard based on EN ISO 3744:2010 shall be applied.\nThe period of observation shall be at least 15 s.\n57. WELDING GENERATORS\nEN ISO 8528-10:2022\nThe measurement method of this standard based on EN ISO 3744:2010 shall be applied.”.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "Idle of an engine may be run either at the lowest engine speed (full release of a throttle) or at the lowest engine speed required to perform basic functions, including giving sufficient hydraulic pressure to move the machine or any of its tools, as applicable for the specific equipment category."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "Net power means the engine power in ‘kW’ obtained on a test bench at the end of the crankshaft, or its equivalent, measured in accordance with the method of measuring the power of internal combustion engines specified in Regulation No 120 Revision 2 of the Economic Commission for Europe of the United Nations (UNECE) – Uniform provisions concerning the approval of internal combustion engines to be installed in agricultural and forestry tractors and in non-road mobile machinery, with regard to the measurement of the net power, net torque and specific fuel consumption (OJ No. L 166, 30.6.2015, p. 170)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2025/1073/schedule",
    "retrieved_at": "2026-10-28T21:10:57.711866+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."
}