Workplace exposure - Measurement of the dustiness of bulk materials - Part 1: Requirements and choice of test methods

This European Standard specifies the environmental conditions, the sample handling and analytical procedures and the method of calculating and presenting the results. Reasons are given for the need for more than one method and advice is given on the choice of method to be used.
This European Standard establishes a classification scheme for dustiness to provide a standardised way to express and communicate the results to users of the bulk materials. Details of the scheme for each method are given in EN 15051 2 and EN 15051 3.
This European Standard is applicable to powdered, granular or pelletized bulk materials.
This European Standard is not applicable to test the dust released during mechanical reduction of solid bulk materials (e.g. cut, crushed) or to test application procedures for the bulk materials.
Figure 1 gives a flow chart to provide the user of this European Standard a route through the necessary stages that need to be taken to obtain values of the dustiness of a given bulk material.

Exposition am Arbeitsplatz - Messung des Staubungsverhaltens von Schüttgütern - Teil 1: Anforderungen und Auswahl der Prüfverfahren

Diese Europäische Norm legt die Umgebungsbedingungen, den Umgang mit den Proben und die Analyseverfahren sowie die Verfahren zur Berechnung und Darstellung der Ergebnisse fest. Es wird begründet, warum mehr als ein Verfahren benötigt wird, und es wird Hilfestellung bei der Auswahl des Verfahrens gegeben.
Diese Europäische Norm stellt ein Klassifikationssystem für das Staubungsverhalten auf, um eine genormte Grundlage für die Angabe und Weiterleitung der Ergebnisse an die Anwender von Schüttgütern zu schaffen. Einzelheiten zu dem System für die einzelnen Verfahren sind in EN 15051-2 und EN 15051-3 enthalten.
Diese Europäische Norm gilt für pulverförmige, granulierte oder pelletierte Schüttgüter.
Diese Europäische Norm gilt weder für die Prüfung von Staub, der bei der mechanischen Zerkleinerung fester Schüttgüter (z. B. beim Schneiden, Brechen) freigesetzt wird, noch für die Prüfung der Anwendungsverfahren von Schüttgütern.
Bild 1 zeigt ein Ablaufdiagramm, das dem Anwender dieser Europäischen Norm verdeutlichen soll, welche Stufen bei der Ermittlung von Werten zum Staubungsverhalten eines bestimmen Schüttguts durchlaufen werden müssen.

Exposition sur les lieux de travail - Mesure du pouvoir de resuspension des matériaux pulvérulents en vrac - Partie 1: Exigences et choix des méthodes d'essai

La présente Norme européenne spécifie également les conditions ambiantes, les méthodes de manipulation et d'analyse des échantillons ainsi que la méthode de calcul et d'expression des résultats. Le besoin de disposer de plusieurs méthodes est justifié et des conseils sont donnés sur la sélection de la méthode.
La présente Norme européenne établit une méthode de classification du pouvoir de resuspension, afin de normaliser le mode d'expression et de communication des résultats aux utilisateurs des matériaux en vrac. Des détails concernant cette classification sont donnés, pour chaque méthode, dans l’EN 15051-2 et l’EN 15051-3.
La présente Norme européenne s’applique aux matériaux en vrac granulaires, en poudre ou sous forme de pastilles.
La présente Norme européenne ne s’applique pas à la détermination de l’empoussièrement dû à la réduction mécanique (par exemple découpe, concassage) de matériaux solides en vrac ni à l’évaluation des méthodes d’application des matériaux en vrac.
La Figure 1 présente un diagramme pour aider l’utilisateur de la présente Norme européenne à repérer les étapes qu’il est nécessaire de suivre pour obtenir les valeurs du pouvoir de resuspension d’un matériau en vrac donné.

Izpostavljenost na delovnem mestu - Meritve prašnosti razsutih materialov - 1. del: Zahteve in izbira preskusnih metod

Ta evropski standard navaja okoljske pogoje, ravnanje z vzorci in analitične postopke ter metodo izračuna in predstavitve rezultatov. Podani so razlogi za navedbo več metod in nasveti v zvezi z izbiro uporabljene metode. Ta evropski standard uvaja razvrstitveno shemo prašnosti za zagotovitev standardiziranega načina izražanja in sporočanja rezultatov uporabnikom razsutih materialov. Shematske podrobnosti za vsako metodo so podane v standardih EN 15051-2 in EN 15051-3. Ta evropski standard se uporablja za razsute materiale v prahu, granulah in peletih. Ta evropski standard se ne uporablja za preskušanje sproščanja prahu med mehanskim zmanjševanjem trdnih razsutih materialov (npr. rezanje, drobljenje) ali za preskušanje postopkov uporabe razsutih materialov. Slika 1 je diagram poteka, ki uporabniku tega standarda prikazuje posamezne stopnje za pridobitev vrednosti prašnosti določenega razsutega materiala.

General Information

Status
Published
Publication Date
26-Nov-2013
Withdrawal Date
19-Jul-2011
Current Stage
9093 - Decision to confirm - Review Enquiry
Due Date
20-Jul-2011
Completion Date
20-Jul-2011

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Izpostavljenost na delovnem mestu - Meritve prašnosti razsutih materialov - 1. del: Zahteve in izbira preskusnih metodExposition am Arbeitsplatz - Messung des Staubungsverhaltens von Schüttgütern - Teil 1: Anforderungen und Auswahl der PrüfverfahrenExposition sur les lieux de travail - Mesure du pouvoir de resuspension des matériaux pulvérulents en vrac - Partie 1: Exigences and selection des méthodes d'essaiWorkplace exposure - Measurement of dustiness of bulk materials - Part 1: Requirements and choice of test methods13.040.30Kakovost zraka na delovnem mestuWorkplace atmospheresICS:Ta slovenski standard je istoveten z:EN 15051-1:2013SIST EN 15051-1:2014en,fr,de01-julij-2014SIST EN 15051-1:2014SLOVENSKI

STANDARDSIST EN 15051:20061DGRPHãþD
SIST EN 15051-1:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15051-1
November 2013 ICS 13.040.30 Supersedes EN 15051:2006English Version

Workplace exposure - Measurement of the dustiness of bulk materials - Part 1: Requirements and choice of test methods

Exposition sur les lieux de travail - Mesure du pouvoir de resuspension des matériaux pulvérulents en vrac - Partie 1: Exigences et choix des méthodes d'essai

Exposition am Arbeitsplatz - Messung des Staubungsverhaltens von Schüttgütern - Teil 1: Anforderungen und Auswahl der Prüfverfahren This European Standard was approved by CEN on 28 September 2013.

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-CENELEC 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-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15051-1:2013: ESIST EN 15051-1:2014

EN 15051-1:2013 (E) 2 Contents Page Foreword ..............................................................................................................................................................3 Introduction .........................................................................................................................................................4 1 Scope ......................................................................................................................................................6 2 Normative references ............................................................................................................................8 3 Terms and definitions ...........................................................................................................................8 4 Principle ..................................................................................................................................................8 5 General procedures ...............................................................................................................................9 5.1 Condition of the bulk material ..............................................................................................................9 5.2 Sample and environmental control ......................................................................................................9 5.3 Taking samples from the bulk material ...............................................................................................9 5.4 Moisture content ................................................................................................................................. 10 5.5 Bulk density ......................................................................................................................................... 10 5.6 Test procedure .................................................................................................................................... 10 5.7 Replicate tests ..................................................................................................................................... 10 5.8 Reporting ............................................................................................................................................. 10 6 Choice of test methods ...................................................................................................................... 10 6.1 General ................................................................................................................................................. 10 6.2 Selection of the most appropriate test method ............................................................................... 11 7 Evaluation of dustiness ..................................................................................................................... 11 8 Test report ........................................................................................................................................... 12 Annex A (normative)

Determination of moisture content........................................................................... 13 A.1 Infrared dryer method ........................................................................................................................ 13 A.1.1 Principle ............................................................................................................................................... 13 A.1.2 Procedure ............................................................................................................................................ 13 A.2 Alternative method ............................................................................................................................. 13 Annex B (normative)

Determination of bulk density of the test material .................................................. 15 B.1 Equipment ........................................................................................................................................... 15 B.2 Special requirements ......................................................................................................................... 15 B.3 Procedure ............................................................................................................................................ 15 Bibliography ..................................................................................................................................................... 16

SIST EN 15051-1:2014

EN 15051-1:2013 (E) 3 Foreword This document (EN 15051-1:2013) has been prepared by Technical Committee CEN/TC 137 “Assessment of workplace exposure to chemical and biological agents”, 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 May 2014, and conflicting national standards shall be withdrawn at the latest by May 2014. 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, together with EN 15051-2:2013 and EN 15051-3:2013, supersedes EN 15051:2006. The major technical changes between this European Standard and the previous edition are as follows: a) EN 15051:2006 has been split in three parts (see below); b) the test methods given are no longer referred to as reference test methods; c) the test of equivalence between an alternative (candidate) test method and any of the test methods now given in EN 15051-2 and EN 15051-3 have been deleted. EN 15051 Workplace exposure – Measurement of the dustiness of bulk materials consists of the following parts: — Part 1: Requirements and choice of test methods; — Part 2: Rotating drum method; — Part 3: Continuous drop method. EN 15051-2 and EN 15051-3 give details of two test apparatus and test methods for the reproducible production of dust from a bulk material under standard conditions, and the measurement of the inhalable, thoracic and respirable fractions of this dust, with reference to the existing European Standards, where relevant (see Clause 6). 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 15051-1:2014

EN 15051-1:2013 (E) 4 Introduction The control of dust emissions during the handling and transportation of bulk materials is an important consideration in the design and operation of many industrial processes. Excessive airborne dust levels in workplaces are undesirable for several reasons: — they can cause adverse health effects to the workers; — their control can involve the use of costly ventilation and filtration systems; — they can contaminate machinery and products; — they can be costly in terms of product losses; It is therefore advantageous for occupational hygienists and process engineers to have relevant information about the propensity of bulk materials to produce airborne dust (the “dustiness” of the bulk material) so that risks can be evaluated, controlled and minimized. No single method of dustiness testing is likely to represent and reproduce the various types of processing and handling used in industry. Therefore a number of dustiness testing methods are in use in different industries. Different methods use different test apparatus and measuring principles, and express results in different ways. Methods that do not separate the dust cloud produced into the three health-related size fractions - inhalable, thoracic and respirable dust - can serve the needs of manufacturing industry for process and batch control, but give limited information on the health hazard due to the dustiness of the bulk material. Dustiness is a relative term and the measurement obtained will depend on the test apparatus used, the condition and properties of the tested bulk material and various environmental variables. The test and the variables therefore need to be closely specified to ensure reproducibility. Recognising the above, it was concluded that there was a need for standardized methods to measure the dustiness of bulk materials, based on the biologically relevant aerosol fractions defined in EN 481. This European Standard, together with EN 15051-2 and EN 15051-3, establishes test methods that classify the dustiness, in terms of health-related fractions, of solid bulk materials. The dustiness classification is intended to provide users (e.g. manufacturers, producers, occupational hygienists and workers) with information on the potential for dust emissions when the bulk material is handled or processed in workplaces. It provides the manufacturers of bulk materials with information that can help to improve their products. It allows the users of the bulk materials to assess the effects of pre-treatments, and also to select less dusty products, if available. Although this European Standard does not discuss the analysis of dust released from bulk materials (except in terms of health-related fractions), the test method produces samples with the potential for chemical analysis of the contents. If methods to evaluate dustiness for bulk materials handled in other ways are deemed of importance, CEN/TC 137 could be approached for adopting a new work item, e.g. more specific industrial handling procedures. The level of the dustiness generally depends on material-specific and process-specific parameters. The most important material-specific parameters are — the particle size distribution of the bulk material, — its bulk density, — its moisture content (“bulk material moisture content”), — its chemical composition, SIST EN 15051-1:2014

EN 15051-1:2013 (E) 5 — physical characteristics like electrostatic charge distribution. Process-specific parameters are mainly determined by the type of handling and are essentially determined by — the type and level of energy that leads to dust release, and — the duration of the energy effect. This European Standard was originally developed based on the results of the European project SMT4-CT96-2074 Development of a Method for Dustiness Testing (see [1]). This project investigated the dustiness of 12 bulk materials, with the intention to test as wide a range of bulk materials as possible, i.e. magnitude of dustiness, industrial sectors, chemical composition and particle size distribution. In this revised version, important comments from industrial users of the standard (e.g. Industrial Minerals Association), a number of research papers (for example, [2] and [3]) and the potential influence of the expanding database of dustiness results have been taken into account. SIST EN 15051-1:2014

EN 15051-1:2013 (E) 6 1 Scope This European Standard specifies the environmental conditions, the sample handling and analytical procedures and the method of calculating and presenting the results. Reasons are given for the need for more than one method and advice is given on the choice of method to be used. This European Standard establishes a classification scheme for dustiness to provide a standardised way to express and communicate the results to users of the bulk materials. Details of the scheme for each method are given in EN 15051-2 and EN 15051-3. This European Standard is applicable to powdered, granular or pelletized bulk materials. This European Standard is not applicable to test the dust released during mechanical reduction of solid bulk materials (e.g. cut, crushed) or to test application procedures for the bulk materials. Figure 1 gives a flow chart to provide the user of this European Standard a route through the necessary stages that need to be taken to obtain values of the dustiness of a given bulk material. SIST EN 15051-1:2014

EN 15051-1:2013 (E) 7

Figure 1 — Flow chart to show how EN 15051 is used to measure the dustiness of a bulk material SIST EN 15051-1:2014

EN 15051-1:2013 (E) 8 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable 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 1540, Workplace exposure - Terminology EN 15051-2, Workplace exposure - Measurement of the dustiness of bulk materials - Part 2: Rotating drum method EN 15051-3, Workplace exposure - Measurement of the dustiness of bulk materials - Part 3: Continuous drop method 3 Terms and definitions For the purpose of this document, the terms and definitions given in EN 1540 and the following apply. NOTE In particular, the following terms of EN 1540 are used in this document: airborne dust, collected sample, dustiness, inhalable fraction, respirable fraction, thoracic fraction and health related fractions. 3.1 inhalable dustiness mass fraction wI,t ratio of the inhalable dust produced by the dustiness test procedure, to the test mass for the respective test method t Note 1 to entry: The different test methods are described in EN 15051–2 and EN 15051–3, and t has the value A and B for the two methods respectively. 3.2 respirable dustiness mass fraction wR,t ratio of the respirable dust produced by the dustiness test procedure to the test mass for the respective test method t Note 1 to entry: The different test methods are described in EN 15051–2 and EN 15051–3, and t has the value A and B for the two methods respectively. 3.3 thoracic dustiness mass fraction wT,t ratio of the thoracic dust produced by the dustiness test procedure to the initial mass for the respective test method t Note 1 to entry: The different test methods are described in EN 15051–2 and EN 15051–3, and t has the value A and B for the two methods respectively. 4 Principle A dustiness tester consists of the following el

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