1、BSI Standards PublicationBS ISO 7216:2015Agricultural and forestrytractors Measurement ofnoise emitted when in motionBS ISO 7216:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 7216:2015.The UK participation in its preparation was entrusted to TechnicalCom
2、mittee AGE/6, Agricultural tractors and forestry machinery.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The Br
3、itish Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 87267 9ICS 17.140.20; 65.060.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee
4、on 31 October 2015.Amendments issued since publicationDateT e x t a f f e c t e dBS ISO 7216:2015 ISO 2015Agricultural and forestry tractors Measurement of noise emitted when in motionTracteurs agricoles et forestiers Mesurage du bruit mis en mouvementINTERNATIONAL STANDARDISO7216Second edition2015-
5、10-01Reference numberISO 7216:2015(E)BS ISO 7216:2015ISO 7216:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by an
6、y means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401C
7、H-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 7216:2015ISO 7216:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Measurement units and tolerances . 25 Instrumentation 26 Circumstances for t
8、esting 26.1 Acoustical environment 26.2 Ambient conditions . 37 Layout of the test area . 38 Condition of tractor . 49 Test procedure 410 Interpretation of results . 411 Test report . 4Annex A (informative) Designation of Maintenance Agency . 5Bibliography 6 ISO 2015 All rights reserved iiiContents
9、PageBS ISO 7216:2015ISO 7216:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body in
10、terested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechni
11、cal Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO doc
12、uments should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsi
13、ble for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for
14、 the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL:
15、 Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 2, Common tests.This second edition cancels and replaces the first edition (ISO 7216:1992), of which has been technically revised for th
16、e technical harmonization with OECD Code 2, 4.8: July 2014.iv ISO 2015 All rights reservedBS ISO 7216:2015ISO 7216:2015(E)IntroductionTechnical harmonization with OECD is ensured by the Maintenance Agency operating as specified in Annex A. ISO 2015 All rights reserved vBS ISO 7216:2015BS ISO 7216:20
17、15Agricultural and forestry tractors Measurement of noise emitted when in motion1 ScopeThis International Standard specifies a method for measuring the A-weighted sound pressure level of the noise emitted by agricultural and forestry tractors while the vehicle is in motion.The conditions specified f
18、or the operation of the agricultural and forestry tractors during the measurements are defined to provide a realistic and repeatable assessment of the maximum noise emitted when it is in motion.This International Standard is applicable to agricultural and forestry tractors, fitted with elastic tyres
19、 or rubber tracks.It is not applicable to special forestry machinery, for example, forwarders, skidders, etc., as defined in ISO 6814 and agricultural and forestry tractors, fitted with steel tracks.NOTE The test method calls for an acoustical environment which can only be obtained in an extensive o
20、pen space.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including
21、any amendments) applies.IEC 61672-1, Electroacoustics Sound level metersIEC 60942, Electroacoustics Sound calibratorsISO 6814:2009, Machinery for forestry Mobile and self-propelled machinery Terms, definitions and classification3 Terms and definitionsFor the purposes of this document, the following
22、terms and definitions apply.3.1agricultural tractorself-propelled agricultural vehicle having at least two axles and wheels, or endless tracks, particularly designed to pull agricultural trailers and pull, push, carry and operate implements used for agricultural work (including forestry work), which
23、 may be provided with a detachable loading platformNote 1 to entry: The agricultural vehicle has a maximum design speed of not less than 6 km/h and may be equipped with one or more seats.SOURCE: ISO 12934:2013, 3.1INTERNATIONAL STANDARD ISO 7216:2015(E) ISO 2015 All rights reserved 1BS ISO 7216:2015
24、ISO 7216:2015(E)3.2unballasted tractor massmass in the tractor in working order with tanks and radiators full, roll-over protective structure with cladding, and any track equipment or additional front-wheel drive components required for normal useNote 1 to entry: Not included are the operator, optio
25、nal ballast weights, additional wheel equipment, special equipment and loads.SOURCE: ISO 5700:2013, 3.24 Measurement units and tolerancesThe following units and tolerances apply to the maximum value measured: rotational frequency (r/min) 0,5 % ; time (s) 0,2 s ; distance (m or mm) 0,5 % ; force (N)
26、1,0 % ; mass (kg) 0,5 % ; atmospheric pressure (kPa) 0,2 kPa ; tyre pressure (Pa) 5 % .5 Instrumentation5.1 A precision quality sound level meter shall be used meeting or exceeding the requirements of IEC 61672-1 for a class 1 instrument. If alternative measuring equipment is used, the tolerances sh
27、all not exceed those given in the relevant clauses of IEC 61672-1 for a class 1 instrument. Measurement shall be carried out with a frequency weighting network in conformity with curve A and set to give fast response as is described in the IEC publication.5.2 The calibration of the equipment at the
28、time of measurement shall be in accordance in all respects with the specifications of IEC 61672-1 for a class 1 instrument. Checking of the calibration shall be carried out at appropriate intervals and at least before and after each measurement session, using an acoustical calibrator in accordance w
29、ith the specifications of IEC 60942 for a class 1 instrument. The calibrator shall be checked annually to verify its output and its calibration shall be traceable to a national standards laboratory.6 Circumstances for testing6.1 Acoustical environment6.1.1 Measurements shall be made in a sufficientl
30、y silent, flat, and open zone. This area shall be an open space of 50 m radius, of which the central part of at least 20 m radius shall be practically level and made concrete, asphalt, or similar material and shall not be covered with powdery snow, high grass, friable soil or cinders.6.1.2 The surfa
31、ce of the test track shall be of such a kind that pneumatic tyres or rubber tracks do not cause excessive noise. The surface shall be as clean and dry as possible (e.g. free of gravel, leaves, snow, etc.).2 ISO 2015 All rights reservedBS ISO 7216:2015ISO 7216:2015(E)6.2 Ambient conditions6.2.1 Measu
32、rements shall be made in fine weather with little or no wind. The level of background noise and the level of wind noise at the microphone location shall be at least 10 dB(A) below the noise level measured during the test. Any extraneous noise occurring during the reading, which is not connected to g
33、eneral sound level measurement, shall not be taken into consideration.6.2.2 No correction shall be made to the test results for the atmospheric conditions or other factors. Atmospheric pressure shall not be less than 96,6 kPa. If this is not possible because of conditions of altitude, a modified inj
34、ection pump setting may have to be used, details of which will be included in the report.7 Layout of the test area7.1 The centreline of the track (CC), a line (PP) perpendicular to it and passing through the centre of the test area and two lines (AA and BB) parallel to line PP and 10 m from it shall
35、 be marked on the track (see Figure 1).7.2 The microphone shall be placed 1,2 m above ground and a distance of 7,5 m from the axis of forward movement of the tractor, measured along the perpendicular PP to the axis (see Figure 1).The microphone shall be oriented in a direction normal to the centreli
36、ne of the path of travel on the track.Dimensions in metresaOne microphone position may be eliminated, in which case an additional test run from BB to AA is required.Figure 1 Layout of the test area Microphone position ISO 2015 All rights reserved 3BS ISO 7216:2015ISO 7216:2015(E)8 Condition of tract
37、or8.1 Measurement will be made on the unballasted tractor with no load and without trailer or semi-trailer.8.2 Immediately before the test, the engine shall be brought to its normal operating temperature.8.3 The stabilized ground speed to be used will be equal to three-quarters of the attainable max
38、imum in the transmission gear or setting giving the highest speed used for roadwork.9 Test procedure9.1 At least two measurements shall be carried out on each side of the tractor. Preliminary measurements to establish governor control setting may be made but shall not be taken into consideration.9.2
39、 Tractors shall be driven at stabilized ground speed, under the conditions specified in Clause 8, as far as line AA. At this moment, the governor control lever shall quickly be fully opened. The lever shall be held in this position until the tractor has passed line BB and then brought to the minimum
40、 position as quickly as possible.10 Interpretation of results10.1 Measurements shall be considered valid if the difference between two consecutive measurements on the same side of the tractor does not exceed 2 dB(A).10.2 The highest sound level measured shall constitute the test result.11 Test repor
41、tThe test report shall include the following details:a) reference to this International Standardb) name and address of the manufacturerc) the tractor type, model serial number and transmission typed) the type and rated speed of the enginee) a brief description of the silencing system (if provide)f)
42、whether the tractor is two- or four-wheel driveg) details of the test site, the testing ground conditions and meteorological conditionsh) sound level meter, make, model, typei) the number of measurements and the sound pressure levels recordedj) overall test resultsk) date and place of test and signa
43、ture of the tester.4 ISO 2015 All rights reservedBS ISO 7216:2015ISO 7216:2015(E)Annex A (informative) Designation of Maintenance AgencyA.1 A Maintenance Agency has been established by the ISO Technical Management Board (TMB) to ensure that technical harmonization can be maintained between ISO/TC 23
44、/SC 2 Standards and OECD Tractor Test Codes. It operates through guidelines approved by the TMB, accessible at http:/standards.iso.org/iso/7216 that entrust it to the following functions:a) to receive the requests for changes from recognized ISO/TC 23/SC 2 P-members;b) to evaluate and resolve the re
45、quests for changes;c) to publish the approved changes.A.2 Changes to this International Standard will be announced by the MA Secretariat to ISO/TC 23/SC 2 and will be made publicly available at http:/standards.iso.org/iso/7216. They constitute authoritative amendments to Clauses 1 to 11 of this Inte
46、rnational Standard. ISO 2015 All rights reserved 5BS ISO 7216:2015ISO 7216:2015(E)Bibliography1 ISO 12934:2013, Tractors and machinery for agriculture and forestry Basic types Vocabulary2 ISO 5700:2013, Tractors for agriculture and forestry Roll-over protective structures Static test method and acce
47、ptance conditions3 OECD Code 2: July 2014, OECD Standard Code for the official testing of agricultural and forestry tractor performance6 ISO 2015 All rights reservedBS ISO 7216:2015BS ISO 7216:2015ISO 7216:2015(E) ISO 2015 All rights reservedICS 17.140.20; 65.060.01Price based on 6 pagesThis page de
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