1、BSI Standards PublicationBS EN 50632-1:2015Electric motor-operatedtools Dust measurementprocedurePart 1: General requirementsBS EN 50632-1:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50632-1:2015.The UK participation in its preparation was entrusted to
2、TechnicalCommittee CPL/116, Safety of motor-operated electric tools.A list of organizations 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 correctapplicatio
3、n. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 87168 9ICS 25.140.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on
4、 30 September 2015.Amendments issued since publicationDate Text affectedBS EN 50632-1:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50632-1 August 2015 ICS 25.140.20 English Version Electric motor-operated tools - Dust measurement Procedure - Part 1: General requirements Outils lectriques
5、 moteur - Procdure de mesure de la poussire - Partie 1: Exigences gnrales Motorbetriebene Elektrowerkzeuge - Staubmessverfahren -Teil 1: Allgemeine Anforderungen This European Standard was approved by CENELEC on 2015-08-03. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulation
6、s 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-CENELEC Management Centre or to any CENELEC member.
7、 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
8、CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Neth
9、erlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management C
10、entre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50632-1:2015 EBS EN 50632-1:2015EN 50632-1:2015 (E) 2 Contents European foreword . 3 Introduction . 4 1 Scope . 5 1.1 General 5 1.2 Types
11、of dust . 5 2 Normative references . 5 3 Terms and definitions 5 4 Test procedure . 6 4.1 General 6 4.2 Test room and equipment 6 4.3 Operating conditions 7 5 Instrumentation 8 5.1 Instrumentation for measuring operating conditions 8 5.2 Instrumentation for measuring climatic conditions . 8 6 Inform
12、ation to be reported 8 BS EN 50632-1:2015EN 50632-1:2015 (E) 3 European foreword This document (EN 50632-1:2015) has been prepared by CLC/TC 116 “Safety of motor-operated electric tools”. The following dates are fixed: latest date by which this document has to be implemented at national level by pub
13、lication of an identical national standard or by endorsement (dop) 2016-08-03 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2017-08-03 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
14、 rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This European Standard is divided into three parts: Part 1: General requirements for the dust measurement which are common to electric motor-operated tools (for the purpose of this standard refer
15、red to simply as tools); Part 2 or 3: Requirements for the dust measurement for particular types of tools, which either supplement or modify the requirements given in Part 1 to account for the particular characteristics of these specific tools. This Part 1 is to be used in conjunction with the appro
16、priate Part 2 or 3 which contains clauses that supplement or modify the corresponding clauses in Part 1 to provide the relevant requirements for each type of product. The following print types are used: - requirements; in roman type - test specifications: in italic type; - notes: in smaller roman ty
17、pe. The terms defined in Clause 3 are printed in bold typeface. BS EN 50632-1:2015EN 50632-1:2015 (E) 4 Introduction Inhalable dust emitted by electric motor-operated tools may present a hazard to the operator and other exposed persons. Therefore, this standard specifies a procedure how to measure t
18、he dust concentration produced by an electric power tool under standardized conditions representing typical applications. However, the dust concentration during actual use of the power tool may differ from the dust concentration measured in accordance with this standard depending on the ways in whic
19、h the tool is used. The results of dust measurements can be used: - for a declaration of the dust emission; - for comparing the dust emission from tools of the same type; - in a preliminary assessment of dust exposure at a workplace. For all purposes, it is important to specify measurement procedure
20、s with known accuracy so that the results of measurements taken by different laboratories can be compared. The measurements of dust concentration are made in accordance with the standard EN 1093-9 for the test room. BS EN 50632-1:2015EN 50632-1:2015 (E) 5 1 Scope 1.1 General This European Standard s
21、pecifies general requirements for the dust measurement of electric motor-operated tools supplied from mains or from batteries. This European Standard applies to those tools with and without dust extraction unit where dust such as mineral dust containing silica or wood dust is expected. 1.2 Types of
22、dust Dust is a disperse distribution of solid substances in gases, particularly air, resulting from mechanical processes. According to EN 481, two size categories are to be differentiated: the inhalable dust and the respirable dust fraction. Inhalable dust refers to the entire inhalable fraction of
23、the dust through mouth and/or nose. Respirable dust relates to the fraction of the inhalable dust that can reach the pulmonary alveoli due to its small particle size. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensabl
24、e for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 481, Workplace atmospheres - Size fraction definitions for measurement of airborne particles EN 1093-9, Safety of
25、machinery Evaluation of the emission of airborne hazardous substances Part 9: Pollutant concentration parameter, room method EN 13205 (all parts), Workplace exposure Assessment of sampler performance for measurement of airborne particle concentrations 3 Terms and definitions For the purposes of this
26、 document, the following terms and definitions apply. 3.1 dust distribution of solid materials in gases, generated by mechanical processes 3.2 inhalable dust dust fraction which can be taken up over the respiratory system in accordance with EN 481 3.3 respirable dust dust fraction which can reach th
27、e alveoli and bronchia in accordance with EN 481 3.4 dust sampler device for collecting the respirable and inhalable dust portion by aspirating a measured amount of dust-laden air and deposition of the dust on an integrated filter BS EN 50632-1:2015EN 50632-1:2015 (E) 6 3.5 dust extraction unit suct
28、ion device, connected to the dust/chip outlet of the tool or a dust capturing attachment, for collecting dust emitted from the tool during working, being either an external one (such as a dust extractor or a centralized exhaust system) or an integral one 3.6 quartz mineral derived from crystalline s
29、ilica 3.7 maximum air flow rate maximum air flow rate, delivered by an external dust extraction unit, including the specified hose, no tool attached 3.8 maximum vacuum maximum vacuum level, delivered by an external dust extraction unit, including the specified hose with end of hose blocked and no by
30、pass 4 Test procedure 4.1 General Tests are performed under working conditions, including appropriate rest periods, in the test room similar to the one used in EN 1093-9, and measurements of dust emission are made in accordance with that standard. The inhalable dust shall be measured and analysed. F
31、or tools intended to be used with materials likely to contain quartz, also the respirable dust shall be measured and analysed. The operator shall be skilled and able to operate the machine properly, i.e. the operator shall be experienced in the use of the tool. 4.2 Test room and equipment The tests
32、are carried out in a test room that fulfils the following criteria: - no other sources of fixed air-polluting material in the room; - no room ventilation during the dust measurement; - size of the room 200 m3 10 % with a height between 3,0 m and 4,5 m; - large enough to ensure a distance between the
33、 tool and the walls of at least 2,0 m. NOTE A smaller distance can lead to higher values of the measured dust concentration. During the test, (a) dust sampler(s) is (are) carried by the operator on the upper chest zone. For the respirable dust, one dust sampler shall be used on each side of the uppe
34、r chest zone. If the tests are done by robotic means, the dust sampler(s) shall be placed at a place to replicate the upper chest zone of an operator. The dust sampler(s) shall remain working throughout the entire time of each test as defined in 4.3. The dust sampler(s) shall comply with EN 13205 (a
35、ll parts) and shall be suitable for the determination of the concentration of inhalable dust and, if required, for respirable dust, as specified in EN 481. BS EN 50632-1:2015EN 50632-1:2015 (E) 7 The test room, the air inside the test room and the equipment shall be cleaned before each test, so that
36、 there is no influence to the test result from previous tests. 4.3 Operating conditions All tests shall be done at an ambient temperature of (20 5) C and at a relative ambient humidity of maximum 75 %. For tools to be used in combination with an external dust extraction unit, the tool is connected t
37、o the dust extraction unit as specified by the manufacturer. Every test consists of five test cycles of 10 min working time and 2 min rest time each, in total a test time of 1 h. During each test, a given task shall be achieved as specified in the relevant Part 2 or Part 3. Depending on the detectio
38、n limit of the used dust sampler(s) and of the dust concentration to be determined, a total test time longer than 1 h may be necessary. This shall be achieved by adding a sufficient number of additional test cycles, so that the relative detection limit of the dust sampler(s) is lower than the dust c
39、oncentration to be determined. The task specified in the relevant Part 2 or Part 3 shall be adapted to the altered test time. The dust extraction unit shall be maintained and operated as specified by the manufacturers instruction manual, and it shall be placed in the test room. - Emptying of an exte
40、rnal dust extraction unit shall be done in accordance with the instruction manual of the external dust extraction unit, but at the earliest after three test cycles. Any emptying shall be done during a rest period of a test cycle and outside the test room. NOTE Examples for instructions in a manual a
41、re requests to obey the warning signal of a class M dust extractor or to keep the air flow in a certain range. - Integral dust extraction units are changed or emptied in accordance with the instruction manual. This may be done in shorter intervals. If necessary, the test may be split into 10 test cy
42、cles of 5 min working time and 1 min rest time. Changing or emptying of the dust container shall be done inside of the test room. If the instruction manual of the power tool requires a certain air flow rate or an air flow rate range then this air flow rate or the minimum value of an air flow rate ra
43、nge shall be adjusted for the dust measurement within a tolerance of 100+%. The amount of dust collected by the dust extraction unit shall be determined by weighing the dust extraction unit, collection unit or the like before starting working, before each emptying and after the test. The tool shall
44、be operated under working conditions. The material used for the test shall be appropriate for the intended use of the tool. The tool bit/cutter/abrasive etc. to be used shall be as specified by the manufacturer for the material to be worked. Tests shall be carried out at rated voltage and frequency
45、and at maximum speed setting, if any. The maximum speed setting also applies, if the specification of a Part 2 or Part 3 cannot be achieved due to missing information in the manufacturers instructions. The tool and the workpiece shall be placed inside the test room so that the distance between the t
46、ool and the walls/ceiling is at least 2,0 m. Three tests shall be carried out. The result shall be one concentration value for each test and dust type. For the respirable dust, the mean value of the two dust samplers at the operator shall be taken. The dust sampler(s) shall operate during the entire
47、 time needed for each of the three tests. BS EN 50632-1:2015EN 50632-1:2015 (E) 8 5 Instrumentation 5.1 Instrumentation for measuring operating conditions The voltage at the plug of the cable or cord of mains-powered tools is measured with voltmeters having an accuracy of class 0,5 instruments. The
48、voltage at the battery terminals of battery-powered tools is measured with voltmeters having an accuracy of class 0,5 instruments. 5.2 Instrumentation for measuring climatic conditions The temperature is determined with instruments having an accuracy of 1 C. The relative ambient humidity is determin
49、ed with instruments having an absolute accuracy of 2 % within the measuring range. 6 Information to be reported The test report shall include at least the following data: a) details of the tool tested (i.e. manufacturer, model, type, etc.); b) information about attachments or accessories used (such as type, manufacturer); c) information about the material used for the test (such as type, manufacturer, composition); d) operating and testing conditions (voltage, speed setting, etc.); e) description of the dust extraction unit (e.g. type, hose data, operat
