1、May 2010 Translation by DIN-Sprachendienst.English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 17
2、.160; 25.140.01!$bW8“1635221www.din.deDDIN EN ISO 28927-7Hand-held portable power tools Test methods for evaluation of vibration emission Part 7: Nibblers and shears (ISO 28927-7:2009)English translation of DIN EN ISO 28927-7:2010-05Handgehaltene motorbetriebene Maschinen Messverfahren zur Ermittlun
3、g der Schwingungsemission Teil 7: Blechscheren und Knabber (ISO 28927-7:2009)Englische bersetzung von DIN EN ISO 28927-7:2010-05Machines moteur portatives Mthodes dessai pour lvaluation de lmission de vibrations Partie 7: Grignoteuses et cisailles (ISO 28927-7:2009)Traduction anglaise de DIN EN ISO
4、28927-7:2010-05SupersedesDIN EN ISO 8662-10:1999-04andDIN EN ISO 8662-10Corrigendum 1:2002-11www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 27 pages05.10 DIN EN ISO 28927-7:2010-05 2 A comma is used as the decimal marker. National fore
5、word This standard has been prepared by Technical Committee ISO/TC 118 “Compressors and pneumatic tools, machines and equipment”, Subcommittee SC 3 “Pneumatic tools and machines” in collaboration with Technical Committee CEN/TC 231 “Mechanical vibration and shock” (Secretariat: DIN, Germany). The re
6、sponsible German body involved in its preparation was the Normenausschuss Akustik, Lrmminderung und Schwingungstechnik im DIN und VDI (Acoustics, Noise Control and Vibration Engineering Standards Committee in DIN and VDI), Working Committee NA 001-03-07-02 (NALS/VDI C 7.2) Hand-Arm-Schwingungen. In
7、DIN 45679, “feed force” is force applied by only one hand; in ISO 15230 feed force refers to both hands (there it is defined as the “sum of the push force of both hands”). In the present standard, in cases where a machine is operated with both hands “feed force” is to be taken to mean the sum of the
8、 force of both hands. The DIN Standards corresponding to the International Standards referred to in the EN are as follows: ISO 5349 series DIN EN ISO 5349 series ISO 8662-11 DIN ISO/TS 8662-11 ISO 8662-13 DIN ISO/TS 8662-13 ISO 12100 DIN EN ISO 12100 ISO 20643 DIN EN ISO 20643 IEC 60745 series DIN E
9、N 60745 series The national standards are given in Annex NA “Bibliography”. Amendments This standard differs from DIN EN ISO 8662-10:1999-04 and DIN EN ISO 8662-10/Cor. 1:2002-11 as follows: a) Vibrations are measured in three axes and at both hand positions. b) New transducer locations have been sp
10、ecified for the measurements. c) The directions of measurement have been modified. Previous editions DIN EN ISO 8662-10: 1999-04 DIN EN ISO 8662-11 Corrigendum 1: 2002-11 DIN EN ISO 28927-7:2010-05 3 National Annex NA (informative) Bibliography DIN 45679, Mechanical vibration Measurement and evaluat
11、ion of the grip and feed forces for assessing the exposure of the hand-arm system to vibration DIN EN 60745 (all parts), Hand-held motor-operated electric tools Safety DIN EN ISO 5349 (all parts), Mechanical vibration Measurement and evaluation of human exposure to hand-transmitted vibration DIN EN
12、ISO 8662-13, Hand-held portable power tools Measurement of vibrations at the handle Part 13: Die grinders DIN EN ISO 12100, Safety of machinery General principles for design, risk assessment and risk reduction DIN EN ISO 20643, Mechanical vibration Hand-held and hand-guided machinery Principles for
13、evaluation of vibration emission DIN ISO/TS 8662-11, Hand-held portable power tools Measurement of vibrations at the handle Part 11: Fastener driving tools (nailers) ISO 15230, Mechanical vibration and shock Coupling forces at the man-machine interface for hand-transmitted vibration DIN EN ISO 28927
14、-7:2010-05 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 28927-7 December 2009 ICS 25.140.10; 13.160 Supersedes EN ISO 8662-10:1998English Version Hand-held portable power tools - Test methods for evaluation of vibration emission - Part 7: Nibblers and s
15、hears (ISO 28927-7:2009) Machines moteur portatives - Mthodes dessai pour lvaluation de lmission de vibrations - Partie 7: Grignoteuses et cisailles (ISO 28927-7:2009) Handgehaltene motorbetriebene Maschinen - Messverfahren zur Ermittlung der Schwingungsemission - Teil 7: Blechscheren und Knabber (I
16、SO 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 stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and b
17、ibliographical references concerning such national standards may be obtained on application to the CEN 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 responsibil
18、ity 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 standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
19、 Ireland, 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 Mar
20、nix 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: EContents Page DIN EN ISO 28927-7:2010-05 EN ISO 28927-7:2009 (E) 2 Foreword .3 Introduction.4 1 Scope5 2 Normative references5 3 Terms,
21、 definitions and symbols 6 3.1 Terms and definitions .6 3.2 Symbols6 4 Basic standards and vibration test codes 6 5 Description of the family of machines 6 6 Characterization of vibration8 6.1 Direction of measurement 8 6.2 Location of measurements.8 6.3 Magnitude of vibration11 6.4 Combination of v
22、ibration directions11 7 Instrumentation requirements .11 7.1 General .11 7.2 Mounting of transducers 11 7.3 Frequency weighting filter11 7.4 Integration time11 7.5 Auxiliary equipment 12 7.6 Calibration12 8 Testing and operating conditions of the machinery12 8.1 General .12 8.2 Operating conditions
23、12 8.3 Other quantities to be specified.13 8.4 Attached equipment, work piece and task13 8.5 Operators .15 9 Measurement procedure and validity15 9.1 Reported vibration values 15 9.2 Declaration and verification of the vibration emission value .15 10 Measurement report16 Annex A (informative) Model
24、test report for vibration emission of nibblers and shears 17 Annex B (normative) Determination of uncertainty 19 Bibliography21 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC, amended by Directive 98/79/EC .22 Annex ZB (info
25、rmative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC23 Foreword This document (EN ISO 28927-7:2009) has been prepared by Technical Committee ISO/TC 118 CEN/TC 231 “Mechanical vibration and shock” the secretariat of which is held by DIN. This
26、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 possibility that some of the eleme
27、nts 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 the European Commission and the Euro
28、pean 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 standards organizations of the following
29、 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, Portugal, Romania, Slovakia, Slovenia
30、, 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. “Compressors and pneumatic tools, machines and equipment” in collaboration with Technical Committee DIN EN ISO 28927-7:2010
31、-05 EN ISO 28927-7:2009 (E) 3 Introduction This 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 o
32、ther 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 are based on ISO 20643, which gives general specifications for the measurement of the vibration emission of
33、 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 type tests. The structure/numbering of its clauses follows that of ISO 20643. The basic principle for transducer positioning first introduc
34、ed in the EN 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 the operator grippin
35、g 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 the handling of the machine and the characteristics of the material worked on, while differences in the support of the material also cause
36、 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 machine 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 goo
37、d 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 representative of the average of the upper quartile of typical vibration magnitudes in real-world use of the machines. However, the actua
38、l 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
39、 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 ac
40、curate values for a specific work place are required, then measurements (according to ISO 5349) in that work situation may be necessary. Vibration values measured in real working conditions can be either higher or lower than the values obtained using this part of ISO 28927. Higher vibration magnitud
41、es can easily occur in real working situations, caused by improper support of the material being worked on or by worn punches or shear blades. The vibration test codes given in ISO 28927 supersede those given in ISO 8662, whose parts have been replaced by the corresponding parts of ISO 28927 (see Fo
42、reword). NOTE ISO 8662-11, Hand-held portable power tools Measurement of vibrations at the handle Part 11: Fastener driving tools, and ISO 8662-13, Hand-held portable power tools Measurement of vibrations at the handle Part 13: Die grinders, could be replaced by future parts of ISO 28927. DIN EN ISO
43、 28927-7:2010-05 EN ISO 28927-7:2009 (E) 4 1 Scope This part of ISO 28927 specifies a laboratory method for measuring hand-transmitted vibration emission at the handles of hand-held, power-driven nibblers and shears. It is a type-test procedure for establishing the magnitude of vibration in the grip
44、ping areas of a machine run under specified test conditions. It is intended that the results be used to compare different models of the same type of machine. This part of ISO 28927 is applicable to nibblers and shears (see Clause 5), driven pneumatically or by other means, intended for cutting sheet
45、 metal or composite materials. NOTE To avoid confusion with the terms “power tool” and “inserted tool”, machine is used for the former throughout this document. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, onl
46、y the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2787:1984, Rotary and percussive pneumatic tools Performance tests ISO 5349:2001 (all parts), Mechanical vibration Measurement and evaluation of human exposure t
47、o hand-transmitted vibration ISO 5391:2003, Pneumatic tools and machines Vocabulary ISO 17066:2007, Hydraulic tools Vocabulary ISO 20643:2005, Mechanical vibration Hand-held and hand-guided machinery Principles for evaluation of vibration emission EN 12096:1997, Mechanical vibration Declaration and
48、verification of vibration emission values DIN EN ISO 28927-7:2010-05 EN ISO 28927-7:2009 (E) 5 3 Terms, definitions and symbols For the purposes of this document, the terms and definitions given in ISO 5391, ISO 17066 and ISO 20643, and the following terms, definitions and symbols, apply. 3.1 Terms
49、and definitions 3.1.1 nibbler machine used for cutting sheet material where material removal is carried out by the reciprocating motion of a punch through a fixed die ISO 5391:2003, definition 2.1.11 3.1.2 shears machine having a cutter in reciprocation motion relative to a fixed cutter, used for cutting sheet metal by a shearing action 3.2 Symbols Symbol Description Unit ahwroot-mean-square (r.m.s.) single-axis acceleration value of the frequency-weighted hand-transmitted vibration m/s2ahvvibration total va
