SIST EN 50632-2-3:2016

Electric motor-operated electric tools - Dust measurement procedure - Part 2-3: Particular requirements for concrete grinders and disk-type sanders

1.1   General
This European Standard specifies general requirements for the dust measurement of electric motor-operated tools supplied from mains or from batteries. This 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 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 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.
This part of EN 50632 applies to concrete grinders and disc-type sanders.

Motorbetriebene Elektrowerkzeuge - Staubmessverfahren - Teil 2-3: Besondere Anforderungen für Betonschleifer und Schleifer mit Schleifblatt

Outils électriques à moteur - Procédure de mesure de la poussière - Partie 2-3: Exigences particulières pour les rectifieuses à béton et les ponceuses à disque

L'article de la Partie 1 est applicable avec l'exception suivante:
Addition:
La présente partie de l'EN 50632 s'applique aux rectifieuses à béton et aux ponceuses à disque.

Elektromotorna orodja - Postopek merjenja prahu - 2-3. del: Posebne zahteve za brusilnike betona in diskovne brusilnike

Ta evropski standard določa splošne zahteve za merjenje prahu elektromotornih orodij, ki se napajajo prek omrežja ali baterij. Ta standard se uporablja za orodja, pri katerih se pričakuje nabiranje prahu (na primer mineralnega prahu, ki vsebuje kremenico, ali lesnega prahu), ne glede na to, ali so opremljena z enoto za izločevanje prahu.
1.2 Vrste prahu
Prah je razpršena porazdelitev trdnih snovi v plinih, zlasti v zraku, do katere pride pri mehanskih postopkih. V skladu s standardom EN 481 se razlikuje med dvema kategorijama velikosti: vdihljivi in respiratorni delež prahu. Vdihljivi prah se nanaša na celoten vdihljivi delež prahu skozi usta in/ali nos. Respiratorni prah se nanaša na delež vdihljivega prahu, ki lahko zaradi majhne velikosti delcev doseže pljučne mešičke.
Ta del standarda EN 50632 se uporablja za brusilnike betona in diskaste brusilnike.

General Information

• Status: Published
• Publication Date: 16-Aug-2016
• ICS: 25.080.50 - Grinding and polishing machines
• ICS: 25.140.20 - Electric tools
• Technical Committee: I09 - Imaginarni 09
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 28-Jul-2016
• Due Date: 02-Oct-2016
• Completion Date: 17-Aug-2016
• Ref Project: EN 50632-2-3:2016 - Electric motor-operated tools - Dust measurement procedure - Part 2-3: Particular requirements for concrete grinders and disk-type sanders

Relations

• Amended By: SIST EN 50632-2-3:2016/A1:2022 - Electric motor-operated tools - Dust measurement procedure - Part 2-3: Particular requirements for concrete grinders and disk-type sanders
• Effective Date: 01-Mar-2022

Overview

EN 50632-2-3:2016 (CLC) is the CENELEC European standard that defines the dust measurement procedure for electric motor‑operated concrete grinders and disc‑type sanders. It is Part 2‑3 of the EN 50632 series and is to be used in conjunction with EN 50632‑1:2015 (general requirements). The standard specifies test setups, operating conditions and reporting requirements for measuring inhalable and respirable dust (including mineral dust containing silica and wood dust) produced by mains- or battery‑supplied tools, with or without dust extraction units.

Key topics and technical requirements

• Scope and dust definitions: Distinguishes between inhalable and respirable dust fractions per EN 481; applies to concrete grinders and disc‑type sanders.
• Test procedures and set‑ups: Specifies test rigs (A‑support, 15° inclination), sample placement and orientations for repeatable measurements.
• Material and sample requirements:
  • Concrete grinders: concrete slabs (400×400 to 600×600 mm) compliant with EN 1339 and stored dry for ≥3 weeks.
  • Disc sanders (mineral): gypsum blocks per EN 12859 (dense, ≥1 250 kg/m3).
  • Disc sanders (wood): beech panels and oak parquet with defined humidity limits.
• Operating conditions:
  • Concrete grinders: feed force adjusted to achieve 70–90% of rated input; minimum 1 200 g material collected in dust unit.
  • Disc‑type sanders (gypsum): minimum collected material 1 500 g (≤150 mm) or 2 000 g (>150 mm); sanding paper P80; maximum speed.
  • Wood sanding: feed forces specified by tool mass (30 N ±5 N for <1.5 kg; 50 N ±5 N for ≥1.5 kg); parquet sanding speed 20–25 m/min.
• Instrumentation and reporting:
  • Instrumentation clause from Part 1 applies.
  • Results must report material type/manufacturer/composition/hardness and, for tests in Tables 101/102, the mean respirable dust concentration.

Practical applications and users

Who uses EN 50632-2-3:2016:

• Tool manufacturers validating dust emissions and designing or verifying dust extraction systems.
• Independent test laboratories performing standardized dust emission measurements.
• Occupational hygienists and safety officers assessing silica and wood dust exposure risks.
• Certification bodies and procurement teams requiring objective dust‑emission data for compliance and labeling.
• Product designers optimizing abrasives and accessories to reduce airborne dust.

Benefits:

• Enables consistent, repeatable measurement of respirable and inhalable dust from grinders and sanders.
• Supports risk assessment, regulatory compliance and product improvement to reduce silica exposure.

Related standards

• EN 50632‑1:2015 (General requirements for dust measurement)
• EN 1339:2003 (Concrete paving flags - test methods)
• EN 12859:2011 (Gypsum blocks - requirements)
• EN 481 (Dust fraction definitions)

Keywords: EN 50632-2-3:2016, dust measurement, concrete grinders, disc-type sanders, respirable dust, inhalable dust, dust extraction, test procedure, tool testing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2016
Elektromotorna orodja - Postopek merjenja prahu - 2-3. del: Posebne zahteve za
brusilnike betona in diskovne brusilnike
Electric motor-operated electric tools - Dust measurement procedure - Part 2-3:
Particular requirements for concrete grinders and disk-type sanders
Outils électriques à moteur - Procédure de mesure de la poussière - Partie 2-3:
Exigences particulières pour les rectifieuses à béton et les ponceuses à disque
Ta slovenski standard je istoveten z: EN 50632-2-3:2016
ICS:
25.080.50 Brusilni in polirni stroji Grinding and polishing
machines
25.140.20 (OHNWULþQDRURGMD Electric tools
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50632-2-3

NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2016
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 électriques à moteur - Procédure de mesure de la Motorbetriebene Elektrowerkzeuge - Staubmessverfahren -
poussière - Partie 2-3: Exigences particulières pour les Teil 2-3: Besondere Anforderungen für Betonschleifer und
rectifieuses à béton et les ponceuses à disque 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 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-CENELEC
Management Centre or to any CENELEC 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 versions.
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 Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management 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 E
Contents
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 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 102 — 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

European foreword
This document (EN 50632-2-3:2016) has been prepared by CLC/TC 116 “Safety of motor-operated
electric tools”.
The following dates are fixed:
(dop) 2017-05-03
• latest date by which this document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2018-05-03
standards conflicting with this
document have to be withdrawn
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 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 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 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 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. 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.
This 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 printed in bold typeface.
1 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
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
concrete grinder
tool intended for smoothing and deburring concrete surfaces by means of diamond wheels
3.102
disc-type sander
tool driving a rotating 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 condi
...