1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 28927-12:2012Hand-held portable powertools Test methods forevaluation of vibrationemissionPart 12: Die grinders (ISO 28927-12:2012)BS EN ISO 28927-12:2012 BRITISH STAND
2、ARDNational forewordThis British Standard is the UK implementation of EN ISO28927-12:2012. It supersedes BS EN ISO 8662-13:1997 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 organization
3、s 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 British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978
4、0 580 71498 6ICS 13.160; 25.140.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2012.Amendments issued since publicationDate Text affectedEUROPEAN STA
5、NDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 28927-12 October 2012 ICS 25.140.10; 13.160 Supersedes EN ISO 8662-13:1997English Version Hand-held portable power tools - Test methods for evaluation of vibration emission - Part 12: Die grinders (ISO 28927-12:2012)Machines moteur portatives - Mthodes de
6、ssai pour lvaluation de lmission de vibrations - Partie 12: Meuleuses doutillage (ISO 28927-12:2012) Handgehaltene motorbetriebene Maschinen - Messverfahren zur Ermittlung der Schwingungsemission - Teil 12: Geradschleifer mit Spannzange (ISO 28927-12:2012) This European Standard was approved by CEN
7、on 12 October 2012. 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 concerning such national standards
8、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 into its own language and notifie
9、d 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Icela
10、nd, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre:
11、 Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 28927-12:2012: EBS EN ISO 28927-12:2012EN ISO 28927-12:2012 (E) 3 Foreword This document (EN ISO 28927-12:2012) has been prepared by Techni
12、cal Committee ISO/TC 118 “Compressors and pneumatic tools, machines and equipment“ in collaboration with Technical Committee CEN/TC 231 “Mechanical vibration and shock” the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publica
13、tion of an identical text or by endorsement, at the latest by April 2013, and conflicting national standards shall be withdrawn at the latest by April 2013. 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 8662-13:1997. 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. F
15、or 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 organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croat
16、ia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and th
17、e United Kingdom. Endorsement notice The text of ISO 28927-12:2012 has been approved by CEN as a EN ISO 28927-12:2012 without any modification. BS EN ISO 28927-12:2012EN ISO 28927-12:2012 (E) 4 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Di
18、rective 2006/42/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 Requirements of the New Approach Directive 2006/42/EC on machinery. Once this standard is cited in
19、 the Official Journal of the European Union under that Directive, compliance with the clauses 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 excerpt ER 2.2.1.1 and associated EFTA
20、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 28927-12:2012ISO 28927-12:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroduction . vi1 Scope 12 Normative references . 13 Ter
21、ms, definitions and symbols 23.1 General . 23.2 Terms and definitions . 23.3 Symbols . 24 Basic standards and vibration test codes 35 Description of the family of machines . 36 Characterization of vibration 46.1 Direction of measurement . 46.2 Location of measurements . 56.3 Magnitude of vibration .
22、 76.4 Combination of vibration directions 77 Instrumentation requirements . 77.1 General . 77.2 Mounting of transducers . 77.3 Frequency weighting filter 87.4 Integration time 87.5 Auxiliary equipment 87.6 Calibration . 88 Testing and operating conditions of the machinery 88.1 General . 88.2 Operati
23、ng conditions 98.3 Other quantities to be specified 98.4 Attached equipment, workpiece and task 98.5 Operator .139 Measurement procedure and validity 139.1 Reported vibration values .139.2 Declaration and verification of the vibration emission value 1410 Measurement report .14Annex A (informative) M
24、odel test report for vibration emission of die grinders .16Annex B (normative) Determination of uncertainty 18Bibliography .20BS EN ISO 28927-12:2012ISO 28927-12:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member
25、 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 organizations, governmental
26、 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 ISO/IEC Directive
27、s, 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 the member bodies ca
28、sting 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 28927-12 was prepared by Technical Committee ISO/TC 188, Compressors and pneumatic to
29、ols, machines and equipment, Subcommittee SC 3, Pneumatic tools and machines.This first edition of ISO 28927-12 cancels and replaces ISO 8662-13:1997, which has been technically revised. It also incorporates the Technical Corrigendum ISO 8662-13:1997/Corr.1:1998. The most important changes are vibra
30、tion measurement in three axes and, where applicable, at both hand positions, new test method; a real grinding process is introduced, and new transducer positions, with an improved definition of the transducer positions and orientation.ISO 29827 consists of the following parts, under the general tit
31、le Hand-held portable power tools Test methods for evaluation of vibration emission: Part 1: Angle and vertical grinders1) Part 2: Wrenches, nutrunners and screwdrivers2) Part 3: Polishers and rotary, orbital and random orbital sanders3) Part 4: Straight grinders4) Part 5: Drills and impact drills5)
32、 Part 6: Rammers6)1) Together with ISO 28927-4, 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 portable power tools Measurement of vibrations at the handle Part 7: Wrenches, screwdrivers and nut runners w
33、ith impact, impulse or ratchet 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 at the handle Part 8: Polishers and rotary, orbital and random orbital sanders.4) Together with Part 1, replac
34、es ISO 8662-4, Hand-held portable power tools Measurement of vibrations at the handle Part 4: Grinders.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 pow
35、er tools Measurement of vibrations at the handle Part 9: Rammers.iv ISO 2012 All rights reservedBS EN ISO 28927-12:2012ISO 28927-12:2012(E) Part 7: Nibblers and shears7) Part 8: Saws, polishing and filing machines with reciprocating action and small saws with oscillating or rotating action8) Part 9:
36、 Scaling hammers and needle scalers9) Part 10: Percussive drills, hammers and breakers10) Part 11: Stone hammers11) Part 12: Die grinders12)7) Replaces ISO 8662-10, Hand-held portable power tools Measurement of vibrations at the handle Part 10: Nibblers and shears.8) Replaces ISO 8662-12, Hand-held
37、portable power tools Measurement of vibrations at the handle Part 12: Saws and files with reciprocating action and saws with oscillating or rotating action.9) Together with Part 11, replaces ISO 8662-14, Hand-held portable power tools Measurement of vibrations at the handle Part 14: Stone-working to
38、ols and needle scalers.10) Replaces ISO 8662-2 and its amendments, Hand-held portable power tools Measurement of vibrations at the handle Part 2: Chipping hammers and riveting hammers, ISO 8662-3 and its amendments, Hand-held portable power tools Measurement of vibrations at the handle Part 3: Rock
39、drills and rotary hammers, and ISO 8662-5 and its amendments, 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.11) Together with Part 9, replac
40、es ISO 8662-14, Hand-held portable power tools Measurement of vibrations at the handle Part 14: Stone-working tools and needle scalers.12) Replaces ISO 8662-13 Hand-held portable power tools Measurement of vibrations at the handle Part 13: Die Grinders. ISO 2012 All rights reserved vBS EN ISO 28927-
41、12:2012ISO 28927-12:2012(E)IntroductionThis document is a type-C standard as stated in ISO 12100.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
42、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-held machines given in ISO 28927 (all parts) are based on ISO 20643, which gives general specifications for the measurement of the vibration emiss
43、ion of hand-held and hand-guided machinery. ISO 28927 (all parts) specifies the operation of the machines under type-test conditions and other requirements for the performance of type tests. The structure/numbering of its clauses follows that of ISO 20643.The basic principle for transducer positioni
44、ng first introduced in the IEC 60745 series of European standards is followed, representing a deviation from ISO 20643 for reasons of consistency. The transducers are primarily positioned next to the hand in the area between the thumb and the index finger, where they give the least disturbance to th
45、e operator gripping the machine.It has been found that vibrations generated by die grinders vary considerably in typical use. This is largely due to variations in the unbalance of the inserted tool and from the contact between the inserted tool and the surface of the workpiece. The vibration value i
46、s also to a large extent dependent on the skill of the operator. This part of ISO 28927 uses a real working process for the test.In order to provide a method that gives good measurement reproducibility, the procedure is described in detail and it is essential that the procedure be followed. The proc
47、edure is chosen to give vibration values which are, as far as possible, in accordance with ISO 20643.The values obtained according to this part of ISO 28927 are type-test values. The procedures of ISO 5349 are required whenever exposure at the workplace is to be assessed.The values obtained are type
48、-test values intended to be representative of the average of the upper quartile of typical vibration magnitudes in real-world use of the machines. However, the actual magnitudes vary considerably from time to time and depend on many factors, including the operator, the task and the inserted tool or
49、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 is therefore not recommended that emission values below 2,5 m/s2be used for estimating the vibration magnitude under real working conditions. In such cases, 2,5 m/s2is the recommended vibration magnitude for estimating the machine vibration.If accurate values for a specific work
