1、BS EN 50632-2-3:2016Electric motor-operatedtools Dust measurementprocedurePart 2-3: Particular requirements forconcrete grinders and disk-type sandersBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 50632-2-3:2016 BRITISH STANDARDNational forewordThis British St
2、andard is the UK implementation of EN50632-2-3:2016.The UK participation in its preparation was entrusted to 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
3、purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 90996 2ICS 13.040.40; 25.140.20Compliance with a British Standard cannot confer immunity fromle
4、gal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 50632-2-3:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50632-2-3 July 20
5、16 ICS 13.040.40; 25.140.20 English Version Electric motor-operated tools - Dust measurement procedure - Part 2-3: Particular requirements for concrete grinders and disk-type sanders Outils lectriques moteur - Procdure de mesure de la poussire - Partie 2-3: Exigences particulires pour les rectifieus
6、es bton et les ponceuses disque Motorbetriebene Elektrowerkzeuge - Staubmessverfahren -Teil 2-3: Besondere Anforderungen fr Betonschleifer und Schleifer mit Schleifblatt This European Standard was approved by CENELEC on 2016-05-03. CENELEC members are bound to comply with the CEN/CENELEC Internal Re
7、gulations 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
8、 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official ve
9、rsions. 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,
10、the Netherlands, 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 Mana
11、gement Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50632-2-3:2016 EBS EN 50632-2-3:2016EN 50632-2-3:2016 (E) 2 Contents European foreword 3 1 Scope . 4 2 Normative references . 4 3
12、Terms and definitions 4 4 Test procedure . 4 5 Instrumentation 8 6 Information to be reported 8 Figures Figure 101 Test set-up for concrete grinders . 8 Figure 102 A-support . 9 Figure 103 Test set-up for sanding gypsum blocks .10 Tables Table 101 Operating conditions for concrete grinders 5 Table 1
13、02 Operating conditions for disc-type sanders when sanding gypsum blocks . 6 Table 103 Operating conditions for disc-type sanders when sanding wood 7 Table 104 Operating conditions for disc-type sanders when sanding wooden floor . 7 BS EN 50632-2-3:2016EN 50632-2-3:2016 (E) 3 European foreword This
14、document (EN 50632-2-3:2016) 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 publication of an identical national standard or by endorsement (dop) 2017-05-03 latest
15、 date by which the national standards conflicting with this document have to be withdrawn (dow) 2018-05-03 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all
16、 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 referred to simply as tools); Part 2 or 3: Requirements for the dust measurement for part
17、icular 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 2 is to be used in conjunction with EN 50632-1:2015. This Part 2 supplements or modifies the corresponding clauses in EN 50632-1:
18、2015. This Part 2 was developed to set out requirements for the measurement of the concentration for inhalable and respirable dust emitted by concrete grinders or disc-type sanders. Where a particular subclause of Part 1 is not mentioned in this Part 2, that subclause applies as far as reasonable. W
19、hen this standard states “addition“, “modification“ or “replacement“, the relevant text in Part 1 is to be adapted accordingly. Subclauses, tables and figures which are additional to those in Part 1 are numbered starting from 101. This European Standard has been drafted in accordance with the CEN/CE
20、NELEC Internal Regulations, Part 3. The following print types are used: - requirements proper: in roman type; - test specifications: in italic type; - explanatory matter: in smaller roman type. The terms defined in Clause 3 are printed in bold typeface. BS EN 50632-2-3:2016EN 50632-2-3:2016 (E) 4 1
21、Scope This clause of Part 1 is applicable except as follows: Addition: This part of EN 50632 applies to concrete grinders and disc-type sanders. 2 Normative references This clause of Part 1 is applicable except as follows: Addition: EN 1339:2003, Concrete paving flags Requirements and test methods E
22、N 12859:2011, Gypsum blocks Definitions, requirements and test methods 3 Terms and definitions This clause of Part 1 is applicable except as follows: 3.101 concrete grinder tool intended for smoothing and deburring concrete surfaces by means of diamond wheels 3.102 disc-type sander tool driving a ro
23、tating spindle on which a sanding accessory is mounted 4 Test procedure This clause of Part 1 is applicable except as follows: 4.3 Operating conditions Addition: Concrete grinders are tested under load observing the conditions shown in Table 101. BS EN 50632-2-3:2016EN 50632-2-3:2016 (E) 5 Table 101
24、 Operating conditions for concrete grinders Material and set-up Concrete slabs with minimum dimensions of 400 mm x 400 mm, maximum dimensions of 600 mm x 600 mm and a thickness of (50 5) mm according to EN 1339:2003. The concrete slabs shall be stored for at least three weeks under dry conditions. D
25、uring storing, the distance between the slabs shall be at least one slab thickness. The slabs shall have the following specifications in accordance with the following subclauses of EN 1339:2003: Class 3 (5.3.3.2), Class 4 (5.3.4.2), Class 70 (5.3.6.2) for 400 mm x 400 mm, Class 45 (5.3.6.2) for 400
26、mm x 600 mm and 600 mm x 600 mm. The slabs are placed on a A-support, see Figure 102, with 15 inclination and the lower workpiece support being (500 50) mm above the floor. The slabs are arranged without gaps to achieve a plane area of approximately 2,0 m length and 1,2 m height, see Figure 101. For
27、 each tested machine, new slabs shall be used. Orientation and operation The concrete slabs are ground. During grinding, the grinding wheel shall be at least 50 mm away from the edges of the total area of concrete slabs. During grinding, the grinding area of the wheel shall be parallel to the surfac
28、e of the concrete slabs. Tool bit/settings New or re-sharpened diamond wheel as specified by the manufacturer for grinding concrete at the beginning of the first test. If necessary, the wheel may be changed during a rest time. Speed setting devices, if any, shall be adjusted to the setting specified
29、 for grinding concrete. Feed force The forces applied to the tool shall be to achieve an average power consumption during the test of 70 % 90 % of the rated input of the tool. Test During the entire test a minimum of 1 200 g of material shall be collected in the dust extraction unit. The weight of t
30、he material collected may be determined as the weight increase of the dust collection unit by means of scales. BS EN 50632-2-3:2016EN 50632-2-3:2016 (E) 6 Disc-type sanders intended to process mineral materials are tested under load observing the conditions shown in Table 102. Table 102 Operating co
31、nditions for disc-type sanders when sanding gypsum blocks Material and set-up Gypsum blocks made of 100 % calcium sulfate dihydrate (CaSO42H2O) with a density of minimum 1 250 kg/m3(high density, designation as D dense) and a minimum hardness of 80 Shore C units in accordance to EN 12859:2011. The g
32、ypsum blocks shall be stored in a dry environment for at least 2 weeks prior to testing, with a distance of at least one block thickness between each of them. Gypsum blocks with suitable dimensions and a thickness of approximately 100 mm are placed on an A-support, see Figure 102, with 15 inclinatio
33、n and the lower workpiece support being (500 50) mm above the floor. The blocks are arranged without gaps to achieve an area of approximately 4 m length and 1,5 m height, see Figure 103. For each tested tool new blocks of gypsum shall be used and replaced latest when either - the gypsum blocks are s
34、anded down to the surface of the supporting plate; or - the gypsum blocks are broken; or - pieces of the gypsum blocks are thrown out. Orientation and operation The gypsum blocks are sanded. During sanding, the sanding paper shall be at least 50 mm away from the edges of the total block area. During
35、 sanding, the sanding paper shall be parallel to the surface of the gypsum block. Tool bit/settings Sanding paper with a grain P80, suitable for the material gypsum. The sanding paper is replaced after each test cycle. Speed setting devices, if any, shall be adjusted to maximum speed. Feed force The
36、 forces applied to the tool shall be to achieve an average power consumption during the test of 70 % 90 % of the rated power of the tool. Test During the entire test a minimum of - 1 500 g, for disc-type sanders with a rated capacity up to and including 150 mm; - 2 000 g, for disc-type sanders with
37、a rated capacity above 150 mm; material shall be collected in the dust extraction unit. The weight of the material collected may be determined as the weight increase of the dust collection unit by means of scales. BS EN 50632-2-3:2016EN 50632-2-3:2016 (E) 7 Disc-type sanders with sanding paper inten
38、ded for sanding wood are tested under load observing the conditions shown in Table 103. Table 103 Operating conditions for disc-type sanders when sanding wood Material and set-up Beech wood, (500 2) mm x (500 2) mm, thickness sufficient for three complete tests. At the beginning of the test the wood
39、 shall have a humidity of maximum 12 %. The workpiece is mounted horizontally on a bench with a suitable working height (approximately 900 mm). Orientation and operation Uniform sanding of the complete surface. Tool bit/settings Sanding paper with a grain P80, suitable for beech. The sanding paper i
40、s replaced after each test cycle. Speed setting devices, if any, shall be adjusted to maximum speed. Feed force - 30 N 5 N, if the mass of the tool is less than 1,5 kg; - 50 N 5 N, if the mass of the tool is equal or greater than 1,5 kg. Disc-type sanders with sanding paper, intended for sanding woo
41、den floor, are tested under load observing the conditions shown in Table 104. Table 104 Operating conditions for disc-type sanders when sanding wooden floor Material and set-up Oak (strip parquet) on the floor of the test room: approximately 3 000 mm x 2 000 mm, thickness sufficient for three comple
42、te tests. Parquet surface pre-sanded, oak wood humidity maximum 12 %. Disc-type sanders intended for sanding along a wall: a three-sided moveable frame, (300 2) mm high, size approximately 2 000 mm x 1 000 mm is prepared and used. Orientation and operation Disc-type sanders intended for surface sand
43、ing: uniform sanding of the complete working area by constant moving of the tool with a speed of 20 m/min to 25 m/min. Disc-type sanders intended for sanding along a wall: uniform sanding along the complete border (back and forth movement). The frame is moved after each test cycle to another area on
44、 the parquet to avoid excessive wear. Tool bit/settings Aluminium oxide sanding paper with a grain P80, suitable for oak parquet. The sanding paper is replaced after each test cycle. Speed setting devices, if any, shall be adjusted to maximum speed. Feed force The disc-type sander is moved without a
45、dditional load. Test Uniform sanding during working time. If disc-type sanders with integral dust extraction units are used, the dust container shall be changed on one-way systems or emptied on multiple-use systems dependant on its capacity but latest after the third test cycle of each test. The emp
46、tying of multiple-use dust extraction units shall be done in the test room, in accordance with the manufacturers instruction. BS EN 50632-2-3:2016EN 50632-2-3:2016 (E) 8 5 Instrumentation This clause of Part 1 is applicable. 6 Information to be reported This clause of Part 1 is applicable except as
47、follows: c) Modification: Information about the material used for the test (such as type, manufacturer, composition, hardness); k) Modification: For tools tested in accordance with Table 101 or Table 102, the mean value for the concentration of the respirable dust is also required; Dimensions in mil
48、limetres Key A A-support B workpiece (concrete slabs) Figure 101 Test set-up for concrete grinders BS EN 50632-2-3:2016EN 50632-2-3:2016 (E) 9 Dimensions in millimetres Key A workpiece Figure 102 A-support BS EN 50632-2-3:2016EN 50632-2-3:2016 (E) 10 Dimensions in millimetres Key A A-support B workp
49、iece (gypsum blocks) Figure 103 Test set-up for sanding gypsum blocks This page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated by Royal Charter. British Standards and other standardization products are published by BSI Standards Limited.British Standards Institution (BSI)About usWe bring together business, industry, government, consumers, innovators and others to shape their co
