1、Electric motor-operated tools Dust measurement procedurePart 2-4: Particular requirements for sanders other than disk typeBS EN 50632-2-4:2016BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of EN 50632-2
2、-4:2016.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 be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisi
3、ons ofa contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 90997 9ICS 13.040.40; 25.140.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was p
4、ublished under the authority of theStandards Policy and Strategy Committee on 31 August 2016. Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 50632-2-4:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50632-2-4 July 2016 ICS 13.040.40; 25.140.20 English
5、Version Electric motor-operated tools - Dust measurement procedure - Part 2-4: Particular requirements for sanders other than disk typeOutils lectriques moteur - Procdure de mesure de la poussire - Partie 2-4: Exigences particulires pour les ponceuses autres que du type disque Motorbetriebene Elektr
6、owerkzeuge - Staubmessverfahren -Teil 2-4: Besondere Anforderungen fr Schleifer auer Tellerschleiferb This European Standard was approved by CENELEC on 2016-05-03. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European St
7、andard 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. This European Standard exists in three official versions (E
8、nglish, 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. CENELEC members are the national electrotechnical committees
9、 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 Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Sloven
10、ia, 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 Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All ri
11、ghts of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50632-2-4:2016 EBS EN 50632-2-4:2016EN 50632-2-4:2016 (E) 2 Contents European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions 4 4 Test procedure . 4 5 Instrumentation 7 6
12、 Information to be reported 7 Figures Figure 101 Test set-up for sanding gypsum blocks . 8 Figure 102 A-support . 9 Tables Table 101 Operating conditions for sanders when sanding gypsum blocks 5 Table 102 Operating conditions for sanders when sanding wood . 6 Table 103 Operating conditions for sande
13、rs when sanding wooden floor 7 BS EN 50632-2-4:2016EN 50632-2-4:2016 (E) 3 European foreword This document (EN 50632-2-4:2016) 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 nationa
14、l level by publication of an identical national standard or by endorsement (dop) 2017-05-03 latest 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 sub
15、ject of patent 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
16、standard referred 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 2 is to be used in conjunction
17、with EN 50632-1:2015. This Part 2 supplements or modifies the corresponding clauses in EN 50632-1:2015. This Part 2 was developed to set out requirements for the measurement of the concentration for inhalable and respirable dust emitted by sanders. Where a particular subclause of Part 1 is not menti
18、oned in this Part 2, that subclause applies as far as reasonable. When 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. Th
19、is European Standard has been drafted in accordance with the CEN/CENELEC 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 print
20、ed in bold typeface. BS EN 50632-2-4:2016EN 50632-2-4:2016 (E) 4 1 Scope This clause of Part 1 is applicable except as follows: Addition: This part of EN 50632 applies to sanders with the exception of all types of rotating disc-type sanders, which are covered by EN 50632-2-3. 2 Normative references
21、This clause of Part 1 is applicable except as follows: EN 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 sander tool intended to remove surface material using an abrasive medium 3.102 orbital s
22、ander sander equipped with a plate, which performs an orbital oscillating motion parallel to the work surface 3.103 random orbit sander sander equipped with a plate positioned eccentrically on the driving spindle which can rotate freely around its axis parallel to the work surface 3.104 reciprocatin
23、g sander sander equipped with a plate, which performs a reciprocating motion parallel to the work surface 3.105 belt sander sander equipped with an endless abrasive belt 4 Test procedure This clause of Part 1 is applicable except as follows: 4.3 Operating conditions Addition: Orbital sanders and ran
24、dom orbit sanders intended to process mineral materials are tested under load observing the conditions shown in Table 101. BS EN 50632-2-4:2016EN 50632-2-4:2016 (E) 5 Table 101 Operating conditions for sanders when sanding gypsum blocks Material and set-up Gypsum blocks made of 100 % calcium sulfate
25、 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 gypsum blocks shall be stored in a dry environment for at least 2 weeks prior to testing, with a distance of at least one
26、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 inclination and the lower workpiece support being (500 50) mm above the floor. The blocks are arranged without gaps to achieve an a
27、rea of approximately 4 m length and 1,5 m height, see Figure 101. For each tested tool new blocks of gypsum shall be used and replaced latest when either - the gypsum blocks are sanded down to the surface of the supporting plate; or - the gypsum blocks are broken; or - pieces of the gypsum blocks ar
28、e 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 sanding, the sanding paper shall be parallel to the surface of the gypsum block. Tool bit/settings Sanding paper with a
29、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 forces applied to the tool shall be to achieve an average power consumption during the test of 70 % 90 % of the rated in
30、put of the tool. Test During the entire test a minimum of - 1 500 g, for random orbit sanders with a sanding plate diameter up to and including 140 mm; - 2 000 g, for random orbit sanders with a sanding plate diameter above 140 mm; - 1 500 g, for orbital sanders with a rated input up to and includin
31、g 300 W; - 2 000 g, for orbital sanders with a rated input above 300 W; material shall be collected in the dust extraction unit. The above requirement for the minimum amount of material is not applicable for sanders with a sanding plate surface less than 100 cm, e.g. in delta form. The weight of the
32、 material collected may be determined as the weight increase of the dust collection unit by means of scales. BS EN 50632-2-4:2016EN 50632-2-4:2016 (E) 6 Sanders intended for sanding wood are tested under load observing the conditions shown in Table 102. Table 102 Operating conditions for sanders whe
33、n sanding wood Material and set-up For orbital, random orbit and reciprocating sanders: beech wood, (500 2) mm x (500 2) mm, thickness sufficient for three complete tests. For belt sanders: beech wood, length = (500 2) mm, approximate width = width of the sanding belt minus 15 mm, thickness sufficie
34、nt for three complete tests. At the beginning of the test the wood 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 Sandi
35、ng paper with a grain P80, suitable for beech. The sanding paper is 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
36、kg. BS EN 50632-2-4:2016EN 50632-2-4:2016 (E) 7 Sanders intended for sanding wooden floor are tested under load observing the conditions shown in Table 103. Table 103 Operating conditions for sanders when sanding wooden floor Material and set-up Oak (strip parquet) on the floor of the test room: app
37、roximately 3 000 mm x 2 000 mm, thickness sufficient for three complete tests. Parquet surface pre-sanded, oak wood humidity maximum 12 %. 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. Orientatio
38、n and operation Sanders intended for surface sanding: uniform sanding of the complete working area by constant moving of the tool with a speed of 20 m/min to 25 m/min. Sanders intended for sanding along a wall: uniform sanding along the complete border (back and forth movement). The frame is moved a
39、fter each test cycle to another area on 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
40、The sander is moved without additional load. Test Uniform sanding during working time. If 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
41、 each test. The emptying of multiple-use dust extraction units shall be done in the test room, in accordance with the manufacturers instruction. 5 Instrumentation This clause of Part 1 is applicable. 6 Information to be reported This clause of Part 1 is applicable except as follows: c) Modification:
42、 Information about the material used for the test (such as type, manufacturer, composition, hardness); k) Modification: For tools tested in accordance with Table 101, the mean value for the concentration of the respirable dust is also required; BS EN 50632-2-4:2016EN 50632-2-4:2016 (E) 8 Dimensions
43、in millimetres Key A A-support B workpiece (gypsum blocks) Figure 101 Test set-up for sanding gypsum blocks BS EN 50632-2-4:2016EN 50632-2-4:2016 (E) 9 Dimensions in millimetres Key A workpiece Figure 102 A-support BS EN 50632-2-4:2016This page deliberately left blankThis page deliberately left blan
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