1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 22868:2011Forestry and garden machinery Noise test code for portablehand-held machines withinternal combustion engine Engineering method (Grade 2accuracy) (ISO 22868:20
2、11)BS EN ISO 22868:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO22868:2011. It supersedes BS EN ISO 22868:2008 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee AGE/29, Forestry machinery.A list of organiza
3、tions 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. BSI 2011ISBN 978 0 580 73946 0ICS 13.140; 17.140.20; 65.060.80Compliance with a Bri
4、tish Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2011.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 22868 March 20
5、11 ICS 17.140.20; 65.060.80; 13.140 Supersedes EN ISO 22868:2008English Version Forestry and garden machinery - Noise test code for portable hand-held machines with internal combustion engine - Engineering method (Grade 2 accuracy) (ISO 22868:2011) Machines forestires et machines de jardin - Code de
6、ssai acoustique pour machines portatives tenues la main moteur combustion interne - Mthode dexpertise (classe de prcision 2) (ISO 22868:2011) Forst- und Gartenmaschinen - Geruschmessnorm fr handgehaltene Maschinen mit Verbrennungsmotor - Verfahren der Genauigkeitsklasse 2 (ISO 22868:2011) This Europ
7、ean Standard was approved by CEN on 15 January 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references co
8、ncerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member
9、into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ir
10、eland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix
11、 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 22868:2011: EBS EN ISO 22868:2011EN ISO 22868:2011 (E) 3 Foreword This document (EN ISO 22868:2011) has been prepared by Technical Committee ISO/TC 23 “T
12、ractors and machinery for agriculture and forestry“ in collaboration with Technical Committee CEN/TC 144 “Tractors and machinery for agriculture and forestry” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of
13、an identical text or by endorsement, at the latest by September 2011, and conflicting national standards shall be withdrawn at the latest by September 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall
14、not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 22868:2008. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s).
15、For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croa
16、tia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text
17、of ISO 22868:2011 has been approved by CEN as a EN ISO 22868:2011 without any modification. BS EN ISO 22868:2011EN ISO 22868:2011 (E) 4 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC This European Standard has been prepare
18、d under a mandate given to CEN by the European Commission and the European Free Trade Association to provide one means of conforming to Essential Requirements of the New Approach Directive 2006/42/EC on machinery. Once this standard is cited in the Official Journal of the European Union under that D
19、irective and has been implemented as a national standard in at least one Member State, compliance with the normative clauses of this standard confers, within the limits of the scope of this standard, a presumption of conformity with the Essential Requirement 1.7.4.2 u) of that Directive and associat
20、ed EFTA regulations. WARNING Other requirements and other EU Directives may be applicable to the product(s) falling within the scope of this standard. BS EN ISO 22868:2011ISO 22868:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Ter
21、ms and definitions .2 4 Quantities to be measured and quantities to be determined2 5 A-weighted sound power level determination2 6 A-weighted emission sound pressure level measurement at the operator position .3 7 Testing and operating conditions4 8 Information to be reported5 9 Declaration and veri
22、fication of noise emission values .8 Annex A (normative) Specific conditions for chain saws 10 Annex B (normative) Specific conditions for brush cutters and grass-trimmers14 Annex C (normative) Specific conditions for pole-mounted powered pruners .19 Annex D (normative) Specific conditions for hedge
23、-trimmers 23 Annex E (normative) Specific conditions for garden blower/vacuum 27 Annex F (informative) Example of water brake mounted on chain saw bar to simulate cutting32 Annex G (informative) Summary of results from round robin tests 2007/2008 on single chain saw, brush saw and grass-trimmer 34 A
24、nnex H (informative) A-weighted sound power level declaration according to the EU Directive on noise emission in the environment by equipment for use outdoors, 2000/14/EC35 BS EN ISO 22868:2011ISO 22868:2011(E) iv ISO 2011 All rights reservedForeword ISO (the International Organization for Standardi
25、zation) 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 interested in a subject for which a technical committee has been established has the right to b
26、e 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 Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standa
27、rds are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter
28、national Standard requires approval by at least 75 % of the member bodies casting a vote. 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 responsible for identifying any or all such patent rights. ISO 22868 w
29、as prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 17, Manually portable forest machinery. This second edition cancels and replaces the first edition (ISO 22868:2005), which has been technically revised. It now also deals with pole-moun
30、ted powered pruners, hedge-trimmers and garden blowers/vacuums. BS EN ISO 22868:2011ISO 22868:2011(E) ISO 2011 All rights reserved vIntroduction This document is a type-C standard as stated in ISO 12100.1)The machinery concerned and the extent to which hazards, hazardous situations or hazardous even
31、ts are covered are indicated in the Scope of this document. When requirements of this type-C standard are different from those which are stated in type-A or B standards, the requirements of this type-C standard take precedence over the requirements of the other standards for machines that have been
32、designed and built according to the requirements of this type-C standard. During the first steps in the preparation of this International Standard it became obvious that the repeatability of the test results could become better if the operator were to be replaced by a simulation process, representin
33、g the normal operating modes with chain-saws and trimmers/brush-cutters. Furthermore, it was found that the cutting process performed with chain-saws causes considerable deviations, which are not related to the measured object but to the test procedure itself. Based on these observations, it was con
34、cluded that the operators in both test procedures, i.e. for chain-saws and trimmers/brush-cutters, ought to be replaced by a defined fixture and the cutting process with chain-saws by a brake simulating the load. In this manner, the operating conditions during measurement would simulate normal opera
35、ting conditions. The determination of noise emission characteristics is primarily intended for manufacturers declarations of noise emitted, comparing the noise emitted by machines in the family concerned, and purposes of noise control at source at the design stage. The use of this noise test code wi
36、ll ensure reproducibility of the determination of the noise emission characteristics within specified limits determined by the grade of accuracy of the basic noise measurement method used. Noise measurement methods allowed by this International Standard give results with Grade 2 accuracy. The operat
37、ing modes specified for the tests are consistent with those involved in the assessment of the exposure sound pressure levels, for example, over a typical working day. NOTE Exposure sound pressure levels are the mean sound pressure levels experienced by the operator over a defined period of time. The
38、 work cycles chosen for this test code are based on the following considerations of application: a) chain-saws with an engine of 80 cm3are used for various operations, including felling, bucking and delimbing; b) chain-saws with an engine of W 80 cm3are normally used for felling and bucking. Delimbi
39、ng will cause the saw to run at racing speed; therefore, racing is included only for saws with a 80 cm3engine. 1) Safety of machinery General principles for design Risk assessment and risk reduction. BS EN ISO 22868:2011ISO 22868:2011(E) vi ISO 2011 All rights reservedFor brush-cutters, grass-trimme
40、rs, hedge-trimmers and pole-mounted powered pruners, the cutting mode (full load) is estimated to be valid only for short periods, while racing and idling are the two dominant modes. Moreover, it has also been found to be diverse and not able to be performed under repeatable conditions. For trimmers
41、, the full load and the racing modes are integrated in one single mode due to the loading effect of the flexible line. For brush-cutters, hedge-trimmers and pole-mounted powered pruners, it is not possible to simulate the full load mode in a feasible way since there are no constant load conditions c
42、omparable to chain-saws. Since the operating mode “racing” is anyhow the worst case, it is used as representative. For garden blowers, full load and idling are the two dominant modes. In either case, transport and other tasks between operations will cause the machine to run at idling. Experience has
43、 lead to the conclusion that, except for hedge-trimmers and blowers, equal duration for the different working modes is a good estimation of daily exposure. For hedge-trimmers, experience has shown that the machine is used 1/5 at idling and 4/5 at racing, while for garden blowers it is used 1/7 at id
44、ling and 6/7 at racing. A summary of results from “round robin” tests, carried out between 2007 and 2008 in up to eight test laboratories on a single chain-saw, brush-saw and grass-trimmer, is given in Annex G. BS EN ISO 22868:2011INTERNATIONAL STANDARD ISO 22868:2011(E) ISO 2011 All rights reserved
45、 1Forestry and gardening machinery Noise test code for portable hand-held machines with internal combustion engine Engineering method (Grade 2 accuracy) CAUTION Some of the test procedures specified in this International Standard involve processes that could lead to a hazardous situation. Any person
46、 performing tests in accordance with this International Standard shall be appropriately trained in the type of work to be carried out. 1 Scope This International Standard specifies a noise test code for determining, efficiently and under standardized conditions, the noise emission characteristics of
47、 portable, hand-held, combustion-engine-powered forest and garden machines, including chain-saws, brush-cutters, grass-trimmers, pole-mounted powered pruners, hedge-trimmers and garden blowers/vacuums. Noise emission characteristics include the A-weighted emission sound pressure level at the operato
48、r position and the A-weighted sound power level. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including an
49、y amendments) applies. ISO 354, Acoustics Measurement of sound absorption in a reverberation room ISO 3744, Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for an essentially free field over a reflecting plane ISO 4871:1996, Acoustics Declaration and verification of noise emission values of machinery and equipment ISO 6531, Machinery for forestry Portable chain-saws Vocabulary ISO 7112, Machinery for forestry Portable brush-cutters and g
