1、BS EN ISO28927-7:2009ICS 13.160; 25.140.01; 25.140.10NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDHand-held portablepower tools Testmethods for evaluationof vibration emissionPart 7: Nibblers and shears (ISO28927-7:2009)This British Standardwas published unde
2、r theauthority of the StandardsPolicy and StrategyCommittee on 28 February2010. BSI 2010ISBN 978 0 580 62811 5Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 28927-7:2009National forewordThis British Standard is the UK implementation of EN ISO28927-7:2009. It supersedes BS EN IS
3、O 8662-10:1998 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/8/-/2, Hand-held, non-electric power tools - Safety.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to i
4、nclude all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 28927-7 December 2009 ICS 25.140.10; 13.160 Supersedes EN ISO 8
5、662-10:1998English Version Hand-held portable power tools - Test methods for evaluation of vibration emission - Part 7: Nibblers and shears (ISO 28927-7:2009) Machines moteur portatives - Mthodes dessai pour lvaluation de lmission de vibrations - Partie 7: Grignoteuses et cisailles (ISO 28927-7:2009
6、) Handgehaltene motorbetriebene Maschinen - Messverfahren zur Ermittlung der Schwingungsemission - Teil 7: Blechscheren und Knabber (ISO 28927-7:2009) This European Standard was approved by CEN on 14 December 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipu
7、late the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard
8、exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standar
9、ds bodies of Austria, Belgium, Bulgaria, 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 United Kingd
10、om. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 28927-7:2009: EB
11、S EN ISO 28927-7:2009EN ISO 28927-7:2009 (E) 3 Foreword This document (EN ISO 28927-7:2009) has been prepared by Technical Committee ISO/TC 118 “Compressors and pneumatic tools, machines and equipment“ in collaboration with Technical Committee CEN/TC 231 “Mechanical vibration and shock” the secretar
12、iat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2010, and conflicting national standards shall be withdrawn at the latest by June 2010. Attention is drawn to the
13、possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 8662-10:1998. This document has been prepared under a mandate given to CEN by th
14、e European Commission and the European Free Trade Association, and supports essential requirements of EU Directives. For relationship with EU Directives, see informative Annex ZA and ZB, which are integral parts of this document. According to the CEN/CENELEC Internal Regulations, the national standa
15、rds organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Por
16、tugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 28927-7:2009 has been approved by CEN as a EN ISO 28927-7:2009 without any modification. BS EN ISO 28927-7:2009EN ISO 28927-7:2009 (E) 4 Annex ZA (informative) Relationship betwe
17、en this European Standard and the Essential Requirements of EU Directive 98/37/EC, amended by Directive 98/79/EC This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association to provide a means of conforming to Essential Requ
18、irements of the New Approach Directive 98/37/EC, Machinery, amended by Directive 98/79/EC. Once this standard is cited in the Official Journal of the European Union under that Directive and has been implemented as a national standard in at least one Member State, compliance with the normative clause
19、s of this standard confers, within the limits of the scope of this standard, a presumption of conformity with the corresponding Essential Requirements of that Directive, except ER 1.7.4 d) and 2.2, and associated EFTA regulations. WARNING Other requirements and other EU Directives may be applicable
20、to the products falling within the scope of this standard. BS EN ISO 28927-7:2009EN ISO 28927-7:2009 (E) 5 Annex ZB (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC This European Standard has been prepared under a mandate given to CE
21、N 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 Directive and has been impleme
22、nted 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 corresponding Essential Requirement of that Directive, except ER 2.2.1.1, and associated EFT
23、A 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 28927-7:2009ISO 28927-7:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv Introductionvi 1 Scope1 2 Normative references1 3 Terms
24、, definitions and symbols 2 3.1 Terms and definitions .2 3.2 Symbols2 4 Basic standards and vibration test codes 2 5 Description of the family of machines 2 6 Characterization of vibration4 6.1 Direction of measurement 4 6.2 Location of measurements.4 6.3 Magnitude of vibration7 6.4 Combination of v
25、ibration directions7 7 Instrumentation requirements7 7.1 General .7 7.2 Mounting of transducers 7 7.3 Frequency weighting filter7 7.4 Integration time7 7.5 Auxiliary equipment 8 7.6 Calibration8 8 Testing and operating conditions of the machinery8 8.1 General .8 8.2 Operating conditions 8 8.3 Other
26、quantities to be specified.9 8.4 Attached equipment, work piece and task9 8.5 Operators11 9 Measurement procedure and validity11 9.1 Reported vibration values 11 9.2 Declaration and verification of the vibration emission value .11 10 Measurement report 12 Annex A (informative) Model test report for
27、vibration emission of nibblers and shears 13 Annex B (normative) Determination of uncertainty.15 Bibliography17 BS EN ISO 28927-7:2009ISO 28927-7:2009(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards b
28、odies (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 be represented on that committee. International organizati
29、ons, 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 Standards are drafted in accordance with the rules given in the
30、 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 International Standard requires approval by at least 75 % of t
31、he 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 28927-7 was prepared by Technical Committee ISO/TC 118, Compress
32、ors and pneumatic tools, machines and equipment, Subcommittee SC 3, Pneumatic tools and machines. This first edition of ISO 29827-7 cancels and replaces ISO 8662-10:1998, of which it constitutes a technical revision. The most important changes are vibration measurement in three axes and at both hand
33、 positions, new transducer positions, and improved definition of transducer positions and orientation. ISO 28927 consists of the following parts, under the general title Hand-held portable power tools Test methods for evaluation of vibration emission: Part 1: Angle and vertical grinders1) Part 2: Wr
34、enches, nutrunners and screwdrivers2) Part 3: Polishers and rotary, orbital and random orbital sanders3) Part 4: Straight grinders4)1) Together with Part 4, replaces ISO 8662-4, Hand-held portable power tools Measurement of vibrations at the handle Part 4: Grinders. 2) Replaces ISO 8662-7, Hand-held
35、 portable power tools Measurement of vibrations at the handle Part 7: Wrenches, screwdrivers nut runners with impact, impulse and ratcheting action. All screwdrivers and nutrunners except for one-shot tools now covered. 3) Replaces ISO 8662-8, Hand-held portable power tools Measurement of vibrations
36、 at the handle Part 8: Polishers and rotary, orbital and random orbital sanders. 4) Together with Part 1, replaces ISO 8662-4, Hand-held portable power tools Measurement of vibrations at the handle Part 4: Grinders. BS EN ISO 28927-7:2009ISO 28927-7:2009(E) ISO 2009 All rights reserved v Part 5: Dri
37、lls and impact drills5) Part 6: Rammers6) Part 7: Nibblers and shears Part 8: Saws, polishing and filing machines with reciprocating action and small saws with oscillating or rotating action7) Part 9: Scaling hammers and needle scalers8) Part 10: Percussive drills, hammers and breakers9) Part 11: St
38、one hammers10)5) Replaces ISO 8662-6, Hand-held portable power tools Measurement of vibrations at the handle Part 6: Impact drills. Non-impacting drills now covered. 6) Replaces ISO 8662-9, Hand-held portable power tools Measurement of vibrations at the handle Part 9: Rammers. 7) Replaces ISO 8662-1
39、2, Hand-held portable power tools Measurement of vibrations at the handle Part 12: Saws and files with reciprocating action and saws with oscillating or rotating action. 8) Together with Part 11, replaces ISO 8662-14, Hand-held portable power tools Measurement of vibrations at the handle Part 14: St
40、one-working tools and needle scalers. 9) Replaces ISO 8662-2, Hand-held portable power tools Measurement of vibrations at the handle Part 2: Chipping hammers and riveting hammers, ISO 8662-3, Hand-held portable power tools Measurement of vibrations at the handle Part 3: Rock drills and rotary hammer
41、s, and ISO 8662-5, Hand-held portable power tools Measurement of vibrations at the handle Part 5: Pavement breakers and hammers for construction work. Chipping and riveting hammers, rock drills and rotary hammers all covered. 10) Together with Part 9, replaces ISO 8662-14, Hand-held portable power t
42、ools Measurement of vibrations at the handle Part 14: Stone-working tools and needle scalers. BS EN ISO 28927-7:2009ISO 28927-7:2009(E) vi ISO 2009 All rights reservedIntroduction This document is a type-C standard as stated in ISO 12100. When requirements of this type-C standard are different from
43、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 designed and built according to the requirements of this type-C standard. The vibration test codes for portable hand-hel
44、d machines given in ISO 28927 are based on ISO 20643, which gives general specifications for the measurement of the vibration emission of hand-held and hand-guided machinery. ISO 28927 specifies the operation of the machines under type-test conditions and other requirements for the performance of ty
45、pe tests. The structure/numbering of its clauses follows that of ISO 20643. The basic principle for transducer positioning first introduced in the EN 60745 series of European standards is followed, representing a deviation from ISO 20643 for reasons of consistency. The transducers are primarily posi
46、tioned next to the hand in the area between the thumb and the index finger, where they give the least disturbance to the operator gripping the machine. It has been found that vibrations generated by nibblers and shears vary considerably in typical use. The variation is largely due to variations in t
47、he handling of the machine and the characteristics of the material worked on, while differences in the support of the material also cause differences in vibration. In order to provide a method that gives good measurement reproducibility, this part of ISO 28927 uses a working process where the machin
48、e is used to cut sheet metal. It is important that the sheet metal have good support and that the punches and shear blades used be in good condition. The procedures of ISO 5349 are required whenever exposure at the workplace is to be assessed. The values obtained are type-test values intended to be
49、representative of the average of the upper quartile of typical vibration magnitudes in real-world use of the machines. However, the actual magnitudes will vary considerably from time to time and depend on many factors, including the operator, the task and the inserted tool or consumable. The state of maintenance of the machine itself might also be of importance. Under real working conditions the influences of the operator and process can be particularly important at low magnitudes. It i
