SIST EN ISO 28927-9:2010

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Handgehaltene motorbetriebene Maschinen - Messverfahren zur Ermittlung der Schwingungsemission - Teil 9: Abklopfer und Nadelentroster (ISO 28927-9:2009)Machines à moteur portatives - Méthodes d'essai pour l'évaluation de l'émission de vibrations - Partie 9: Marteaux dérouilleurs et marteaux à aiguilles (ISO 28927-9:2009)Hand-held portable power tools - Test methods for evaluation of vibration emission - Part 9: Scaling hammers and needle scalers (ISO 28927-9:2009)25.140.01Hand-held tools in general13.160Vpliv vibracij in udarcev na ljudiVibration and shock with respect to human beingsICS:Ta slovenski standard je istoveten z:EN ISO 28927-9:2009SIST EN ISO 28927-9:2010en,fr01-februar-2010SIST EN ISO 28927-9:2010SLOVENSKI
STANDARDSIST EN ISO 8662-14:20001DGRPHãþD



SIST EN ISO 28927-9:2010



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN ISO 28927-9
December 2009 ICS 13.160; 25.140.10 Supersedes EN ISO 8662-14:1996English Version
Hand-held portable power tools - Test methods for evaluation of vibration emission - Part 9: Scaling hammers and needle scalers (ISO 28927-9:2009)
Machines à moteur portatives - Méthodes d'essai pour l'évaluation de l'émission de vibrations - Partie 9: Marteaux dérouilleurs et marteaux à aiguilles (ISO 28927-9:2009)
Handgehaltene motorbetriebene Maschinen - Messverfahren zur Ermittlung der Schwingungsemission - Teil 9: Abklopfer und Nadelentroster (ISO 28927-9:2009) 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 bibliographical 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 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 standards 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 Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
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Management Centre:
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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 28927-9:2009: ESIST EN ISO 28927-9:2010



EN ISO 28927-9:2009 (E) 2 Contents Page Foreword .3Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC, amended by Directive 98/79/EC .4Annex ZB (informative)
Relationship between this
European
Standard and the Essential Requirements
of EU Directive 2006/42/EC .5 SIST EN ISO 28927-9:2010



EN ISO 28927-9:2009 (E) 3 Foreword This document (EN ISO 28927-9:2009) 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 secretariat 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 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 8662-14:1996. 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 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 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, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 28927-9:2009 has been approved by CEN as a EN ISO 28927-9:2009 without any modification.
SIST EN ISO 28927-9:2010



EN ISO 28927-9:2009 (E) 4 Annex ZA (informative)
Relationship between 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 Requirements 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 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, except ER 1.7.4 d) and 2.2, and associated EFTA regulations. WARNING — Other requirements and other EU Directives may be applicable to the products falling within the scope of this standard.
SIST EN ISO 28927-9:2010



EN ISO 28927-9:2009 (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 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 Directive 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 corresponding Essential Requirement of that Directive, except ER 2.2.1.1, and associated EFTA regulations. WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling within the scope of this standard.
SIST EN ISO 28927-9:2010



SIST EN ISO 28927-9:2010



Reference numberISO 28927-9:2009(E)© ISO 2009
INTERNATIONAL STANDARD ISO28927-9First edition2009-12-15Hand-held portable power tools — Test methods for evaluation of vibration emission — Part 9: Scaling hammers and needle scalers Machines à moteur portatives — Méthodes d'essai pour l'évaluation de l'émission de vibrations — Partie 9: Marteaux dérouilleurs et marteaux à aiguilles
SIST EN ISO 28927-9:2010



ISO 28927-9:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
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SIST EN ISO 28927-9:2010



ISO 28927-9:2009(E) © ISO 2009 – All rights reserved iii Contents Page Foreword.iv Introduction.vi 1 Scope.1 2 Normative references.1 3 Terms, definitions and symbols.2 3.1 Terms and definitions.2 3.2 Symbols.2§ 4 Basic standards and vibration test codes.3 5 Description of the family of machines.3 6 Characterization of vibration.5 6.1 Direction of measurement.5 6.2 Location of measurements.5 6.3 Magnitude of vibration.7 6.4 Combination of vibration directions.7 7 Instrumentation requirements.8 7.1 General.8 7.2 Mounting of transducers.8 7.2.1 Specification of transducer.8 7.2.2 Fastening of transducers.8 7.3 Frequency weighting filter.8 7.4 Integration time.8 7.5 Auxiliary equipment.9 7.6 Calibration.9 8 Testing and operating conditions of the machinery.9 8.1 General.9 8.2 Operating conditions.9 8.2.1 Pneumatic machines.9 8.2.2 Hydraulic machines.10 8.2.3 Electrical machines.10 8.3 Other quantities to be specified.10 8.4 Attached equipment, work piece and task.10 8.4.1 Test set-up and procedure.10 8.4.2 Feed force.11 8.5 Operators.11 9 Measurement procedure and validity.11 9.1 Reported vibration values.11 9.2 Declaration and verification of the vibration emission value.12 10 Measurement report.12 Annex A (informative)
Model test report for vibration emission at handles of scaling hammers and needle scalers.13 Annex B (normative)
Determination of uncertainty.15 Bibliography.17 SIST EN ISO 28927-9:2010



ISO 28927-9:2009(E) iv © ISO 2009 – All rights reserved Foreword ISO (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 interested 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 Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards 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 International 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 28927-9 was prepared by Technical Committee ISO/TC 118, Compressors and pneumatic tools, machines and equipment, Subcommittee SC 3, Pneumatic tools and machines. This first edition of ISO 29827-9, together with ISO 29827-11, cancels and replaces ISO 8662-14:1996, of which it constitutes a technical revision. The most important changes are ⎯ vibration measurement in three axes and at both hand positions, ⎯ new transducer positions, ⎯ stone working tools become stone hammers and the subject of a separate Part 11, and ⎯ reference to energy absorbers deleted and all tools now tested on a mild steel plate or concrete block. 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: Wrenches, 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 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 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. SIST EN ISO 28927-9:2010



ISO 28927-9:2009(E) © ISO 2009 – All rights reserved v ⎯ Part 5: Drills and impact drills5) ⎯ Part 6: Rammers6) ⎯ 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: Scaling hammers and needle scalers ⎯ Part 10: Percussive drills, hammers and breakers9) ⎯ Part 11: Stone 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 8662-10, Hand-held portable power tools — Measurement of vibrations at the handle — Part 10: Nibblers and shears. 8) Replaces ISO 8662-12, 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. 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 hammers, 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 tools — Measurement of vibrations at the handle — Part 14: Stone-working tools and needle scalers. SIST EN ISO 28927-9:2010



ISO 28927-9:2009(E) vi © ISO 2009 – All rights reserved 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 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-held 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 type 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 positioned 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 scaling hammers and needle scalers vary considerably in typical use. The percussive action is the prime source of vibration, and the variation is largely due to variations in the handling of the machine and the characteristics of the material being worked on. Differences in the support of the material also cause differences in vibration. This part of ISO 28927 uses a working process where the machine is used to work on a steel or concrete surface. In order to achieve good reproducibility, it is important that the material have good support and that the inserted tools 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 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 is therefore not recommended that emission values below 2,5 m/s2 be used for estimating the vibration magnitude under real working conditions. In such cases, 2,5 m/s2 is the recommended vibration magnitude for estimating the machine vibration. If accurate values for a specific work place are required, then measurements (according to ISO 5349) in that work situation could 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. 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 Foreword). 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.
SIST EN ISO 28927-9:2010



INTERNATIONAL STANDARD ISO 28927-9:2009(E) © ISO 2009 – All rights reserved 1 Hand-held portable power tools — Test methods for evaluation of vibration emission — Part 9: Scaling hammers and needle scalers 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 scaling hammers and needle scalers. It is a type-test procedure for establishing the magnitude of vibration in the gripping 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 engraving pens, scabblers, scaling hammers and needle scalers (see Clause 5), driven pneumatically or by other means, intended for paint, rust or scale removal with reciprocating work tools or needles and for all kinds of 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, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 630:1995, Structural steels — Plates, wide flats, bars, sections and profiles ISO 2787:1984, Rotary and percussive pneumatic tools — Performance tests ISO 5349:2001 (all parts), Mechanical vibration — Measurement and evaluation of human exposure to hand-transmitted vibration ISO 5391:2003, Pneumatic tools and machines — Vocabulary ISO 17066:2007, Hydraulic Tools — Vocabulary ISO 20643:2005, Mechanical vibration — Hand-held or hand-guided machinery — Principles for evaluation of vibration emission EN 12096:1997, Mechanical vibration — Declaration and verification of vibration emission values SIST EN ISO 28927-9:2010



ISO 28927-9:2009(E) 2 © ISO 2009 – All rights reserved 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 and definitions 3.1.1 needle scaler machine fitted with reciprocating metal needles for rust and scale removal NOTE Adapted from ISO 5391:2003, definition 2.2.3. 3.1.2 scaling hammer machine for removing rust, scale, paint, etc., through the use of one or several reciprocating work tools NOTE Adapted from ISO 5391:2003, definition 2.2.2. 3.1.3 scabbler machine for removing a smooth layer of concrete, so that a new layer can be applied, or for use on metal, the inserted tool being a piston with reciprocating action 3.1.4 engraving pen percussive machine fitted with a high-speed reciprocating metal needle, used for marking [ISO 5391:2003, definition 2.2.4] 3.2 Symbols Symbol Description Unit hwa root-mean-square (r.m.s.) single-axis acceleration value of the frequency-weighted hand-transmitted vibration m/s2 hva vibration total value of frequency-weighted r.m.s. acceleration; root sum of squares of ahw values for the three measured axes of vibration m/s2 hva arithmetic mean value of hvavalues of runs for single operator using one hand position m/s2 ha arithmetic mean value of hva values for all operators for one hand position m/s2 ha arithmetic mean value of havalues for one hand position on several machines m/s2 hda declared vibration emission value m/s2 n-1s standard deviation for a test series (for a sample, s) m/s2 Rσ standard deviation of reproducibility (for a population, σ) m/s2 vC coefficient of variation for a test series
K uncertainty m/s2 SIST EN ISO 28927-9:2010



ISO 28927-9:2009(E) © ISO 2009 – All rights reserved 3 4 Basic standards and vibration test codes This part of ISO 28297 is based on the requirements of ISO 20643 and corresponds to its structure in respect of clause subjects and numbering except for the annexes. Annex A presents a model test report and Annex B the means for determining the uncertainty, K. 5 Description of the family of machines This part of ISO 29827 applies to hand-held machines intended for the removal of paint, rust and scales, by means of reciprocating work tools or needles, from all kinds of materials. Figures 1 to 5 show examples of typical scaling hammers and needle scalers covered by this part of ISO 29827.
Figure 1 — Engraving pen
Figure 2 — Straight needle scaler SIST EN ISO 28927-9:2010



ISO 28927-9:2009(E) 4 © ISO 2009 – All rights reserved
Figure 3 — Straight scaling hammer
Figure 4 — Scaling hammer with pistol grip
Figure 5 — Angle-head scaling hammer (scabbler) SIST EN ISO 28927-9:2010



ISO 28927-9:2009(E) © ISO 2009 – All rights reserved 5 6 Characterization of vibration 6.1 Direction of measurement The vibration transmitted to the hand shall be measured and reported for three directions of an orthogonal coordinate system. At each hand position, the vibration shall be measured simultaneously in the three directions shown in Figures 6 to 10. 6.2 Location of measurements Measurements shall be made at the gripping zones, where the operator normally holds the machine and applies the feed force. For machines intended for one-handed operation, it is only necessary to measure at a single point. The prescribed transducer location shall be as close as possible to the hand between the thumb and index finger. This shall apply to both hand positions, with the machine held as in normal operation. Whenever possible, measurements shall be made at the prescribed locations. A secondary location is defined as being on the side of, and as close as possible to, the inner end of the handle where the prescribed location is found. If the prescribed location of the transducer cannot be used, this secondary location shall be used instead. The prescribed or secondary location shall also be used on anti-vibration handles. Figures 6 to 10 show the prescribed and secondary locations and measurement directions for the hand positions normally used for the different types of machines in this family.
Key 1 prescribed location 2 secondary location Figure 6 — Measurement locations — Engraving pen SIST EN
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