Workplace exposure - Measurement of the dustiness of bulk materials - Part 3: Continuous drop method

This European Standard specifies the continuous drop test apparatus and associated test method for the reproducible production of dust from a bulk material under standard conditions, and the measurement of the inhalable and respirable fractions of this dust, with reference to existing European Standards, where relevant (see Clause 6).
The continuous drop method intends to simulate dust generation processes where there are continuous falling operations (conveying, discharging, filling, refilling, weighing, sacking, metering, loading, unloading etc.) and where dust is liberated by winnowing during falling. It can be modified to measure the thoracic fraction as well, but this modification is not described in this European Standard. It differs from the rotating drum method presented in EN 15051 2 in that in this European Standard, the bulk material is dropped only once, but continuously, while in EN 15051 2, the same bulk material is repeatedly dropped.
Furthermore, this European Standard specifies the environmental conditions, the sample handling and analytical procedures and the method of calculating and presenting the results. A classification scheme for dustiness is specified, to provide a standardised way to express and communicate the results to users of the bulk materials.
This European Standard is applicable to powdered, granular or pelletised bulk materials.
This European Standard is not applicable to test the dust released when solid bulk materials are mechanically treated (e.g. cut, crushed) or to evaluate handling procedures for the bulk materials.

Exposition am Arbeitsplatz - Messung des Staubungsverhaltens von Schüttgütern - Teil 3: Verfahren mit kontinuierlichem Fall

Diese Europäische Norm legt das Prüfverfahren mit kontinuierlichem Fall sowie die entsprechende Prüfeinrichtung fest, die bei der reproduzierbaren Erzeugung von Staub aus einem Schüttgut unter Normbedingungen angewendet wird; außerdem wird die Messung der einatembaren und alveolengängigen Fraktionen dieses Staubs festgelegt, gegebenenfalls unter Verweisung auf bestehende Europäische Normen (siehe Abschnitt 6).
Das Verfahren mit kontinuierlichem Fall zielt darauf ab, Stauberzeugungsprozesse zu simulieren, die bei Arbeitsschritten mit kontinuierlichem Fall entstehen (Fördern, Ablassen, Füllen, Nachfüllen, Wägen, Füllen in Säcke, Dosieren, Beladen, Entladen usw.) und bei denen Staub beim Fallen durch Windsichtung freigesetzt wird. Das Verfahren kann dahingehend abgeändert werden, dass auch die thorakale Fraktion gemessen wird, wobei dieses modifizierte Verfahren jedoch in dieser Europäischen Norm nicht beschrieben ist. Von dem in EN 15051 2 vorgestellten Verfahren mit rotierender Trommel unterscheidet sich das in dieser Europäischen Norm beschriebene Verfahren dadurch, dass das Schüttgut nur einmal, jedoch kontinuierlich fällt, während in EN 15051 2 dasselbe Schüttgut wiederholt fällt.
Ferner legt diese Europäische Norm die Umgebungsbedingungen, den Umgang mit den Proben und die Analyseverfahren sowie die Verfahren zur Berechnung und Darstellung der Ergebnisse fest Um eine genormte Grundlage für die Angabe und Weiterleitung der Ergebnisse an die Anwender von Schüttgütern zu schaffen, wird ein Klassifikationssystem für das Staubungsverhalten festgelegt.
Diese Europäische Norm gilt für pulverförmige, granulierte oder pelletierte Schüttgüter.
Diese Europäische Norm gilt weder für die Prüfung von Staub, der bei der mechanischen Behandlung fester Schüttgüter (z. B. beim Schneiden, Brechen) freigesetzt wird, noch für die Bewertung der Handhabungsverfahren von Schüttgütern.

Exposition sur les lieux de travail - Mesure du pouvoir de resuspension des matériaux pulvérulents en vrac - Partie 3: Méthode de la chute continue

La présente Norme européenne spécifie l’appareillage d’essai de chute continue et la méthode d’essai associée à utiliser pour produire des poussières de manière reproductible, à l’aide de matériaux en vrac, dans des conditions normalisées, en vue de mesurer les fractions inhalable et alvéolaire de ces poussières, en référence aux Normes européennes existantes, s’il y a lieu (voir Article 6).
La méthode de la chute continue vise à simuler les processus de génération de poussières dans le cas d’opérations impliquant une chute continue (convoyage, déchargement, remplissage, pesée, ensachage, mesurage, chargement, déchargement, etc.) et lorsque des poussières sont libérées par le vannage lors de la chute. Elle peut être modifiée pour mesurer également la fraction thoracique, mais cette modification n’est pas décrite dans la présente Norme européenne. Elle se différencie de la méthode du tambour rotatif présentée dans l’EN 15051-2 en ce que dans la présente Norme européenne, le matériau en vrac tombe en une seule fois, mais en continu, alors que dans l’EN 15051-2, le même matériau en vrac tombe de manière répétée.
La présente Norme européenne spécifie également les conditions ambiantes, les procédures de manipulation et d'analyse des échantillons ainsi que la méthode de calcul et d'expression des résultats. Un principe de classification du pouvoir de resuspension est également spécifié afin de normaliser le mode d'expression et de communication des résultats aux utilisateurs de matériaux en vrac.
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 au traitement mécanique (par exemple, découpe, concassage) de matériaux solides en vrac ni à l’évaluation des procédures de manipulation des matériaux.

Izpostavljenost na delovnem mestu - Meritve prašnosti razsutih materialov - 3. del: Metoda trajnega padanja

Ta evropski standard določa preskus trajnega padanja in povezane preskusne metode za ponovljivo pridobitev prahu iz razsutih materialov v standardnih pogojih in merjenje vdihljivih in respiratornih deležev prahu z upoštevanjem obstoječih evropskih standardov, kjer je ustrezno. Namen metode trajnega padanja je simulacija postopkov nastajanja prahu, kjer pride do trajnega padanja (prenos, razlaganje, polnjenje, ponovno polnjenje, tehtanje, odstranjevanje, merjenje, nalaganje, razkladanje itd.) in kjer se prah med padanjem preseje. Metodo je mogoče prilagoditi tudi za merjenje torakalne funkcije, vendar ta evropski standard ne opisuje te prilagoditve. Razlikuje se od metode z vrtečim bobnom, predstavljene v standardu EN 15051-2. Po tem evropskem standardu razsuti material pade na tla enkrat, medtem ko se po standardu EN 15051-2 razsuti material večkrat spusti na tla. Ta evropski standard navaja tudi okoljske pogoje, ravnanje z vzorci in analitične postopke ter metodo izračuna in predstavitve rezultatov. Določena je razvrstitvena shema prašnosti za zagotovitev standardiziranega načina izražanja in sporočanja rezultatov uporabnikom razsutih materialov. 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 obdelovanjem trdnih razsutih materialov (npr. rezanje, drobljenje) ali za ocenjevanje postopkov ravnanja z razsutimi materiali.

General Information

Status
Published
Publication Date
26-Nov-2013
Current Stage
9093 - Decision to confirm - Review Enquiry

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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 - 3. del: Metoda trajnega padanjaExposition am Arbeitsplatz - Messung des Staubungsverhaltens von Schüttgütern - Teil 3: Verfahren mit kontinuierlichem FallAtmosphères des lieux de travail - Mesurage du pouvoir de resuspension des matériaux pulvérulents en vrac - Partie 3: Méthode de la chute continueWorkplace exposure - Measurement of the dustiness of bulk materials - Part 3: Continuous drop method13.040.30Kakovost zraka na delovnem mestuWorkplace atmospheresICS:Ta slovenski standard je istoveten z:EN 15051-3:2013SIST EN 15051-3:2014en,fr,de01-julij-2014SIST EN 15051-3:2014SLOVENSKI

STANDARDSIST EN 15051:20061DGRPHãþD
SIST EN 15051-3:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15051-3
November 2013 ICS 13.040.30 Supersedes EN 15051:2006English Version

Workplace exposure - Measurement of the dustiness of bulk materials - Part 3: Continuous drop method

Exposition sur les lieux de travail - Mesure du pouvoir de resuspension des matériaux pulvérulents en vrac - Partie 3: Méthode de la chute continue

Exposition am Arbeitsplatz - Messung des Staubungsverhaltens von Schüttgütern - Teil 3: Verfahren mit kontinuierlichem Fall 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 15051-3:2013 ESIST EN 15051-3:2014

EN 15051-3:2013 (E) 2 Contents Page Foreword ..............................................................................................................................................................3 Introduction .........................................................................................................................................................4 1 Scope ......................................................................................................................................................5 2 Normative references ............................................................................................................................5 3 Terms and definitions ...........................................................................................................................5 4 Requirements .........................................................................................................................................6 4.1 General ....................................................................................................................................................6 4.2 Condition of the bulk material ..............................................................................................................6 4.3 Sample and environmental control ......................................................................................................6 4.4 Moisture content ....................................................................................................................................6 4.5 Bulk density ............................................................................................................................................6 4.6 Test procedure .......................................................................................................................................6 4.7 Replicate tests ........................................................................................................................................6 4.8 Reporting ................................................................................................................................................6 5 Continuous drop method ......................................................................................................................6 5.1 Description of test apparatus ...............................................................................................................6 5.2 Filters ......................................................................................................................................................8 5.3 Ancillary equipment ..............................................................................................................................8 5.4 Preparation of test sample ....................................................................................................................8 5.5 Preparation of test apparatus ...............................................................................................................9 5.6 Test procedure .......................................................................................................................................9 5.7 Weighing the filters................................................................................................................................9 5.8 Determination of the inhalable and respirable dustiness mass fractions .................................... 10 6 Evaluation of dustiness ..................................................................................................................... 10 7 Test report ........................................................................................................................................... 11 Bibliography ..................................................................................................................................................... 12

SIST EN 15051-3:2014

EN 15051-3:2013 (E) 3 Foreword This document (EN 15051-3:2013) 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 15051-1:2013 and EN 15051-2:2013, 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 into three parts (see below); b) the test methods given are no longer referred 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 this European Standard 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. 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 15051-3:2014

EN 15051-3:2013 (E) 4 Introduction This European Standard gives details of the design and operation of the continuous drop test method that classifies the dustiness of solid bulk materials, in terms of health-related fractions. A dustiness classification is presented 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. It is envisaged that different branches of industry might develop their own classification schemes using experimentally determined dustiness values of the bulk materials of interest. 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. This European Standard was 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. Meanwhile the method has been applied to investigate the dustiness of more than 500 different bulk materials (see [2]). SIST EN 15051-3:2014

EN 15051-3:2013 (E) 5 1 Scope This European Standard specifies the continuous drop test apparatus and associated test method for the reproducible production of dust from a bulk material under standard conditions, and the measurement of the inhalable and respirable fractions of this dust, with reference to existing European Standards, where relevant (see Clause 6). The continuous drop method intends to simulate dust generation processes where there are continuous falling operations (conveying, discharging, filling, refilling, weighing, sacking, metering, loading, unloading etc.) and where dust is liberated by winnowing during falling. It can be modified to measure the thoracic fraction as well, but this modification is not described in this European Standard. It differs from the rotating drum method presented in EN 15051-2 in that in this European Standard, the bulk material is dropped only once, but continuously, while in EN 15051-2, the same bulk material is repeatedly dropped. Furthermore, this European Standard specifies the environmental conditions, the sample handling and analytical procedures and the method of calculating and presenting the results. A classification scheme for dustiness is specified, to provide a standardised way to express and communicate the results to users of the bulk materials. This European Standard is applicable to powdered, granular or pelletised bulk materials. This European Standard is not applicable to test the dust released when solid bulk materials are mechanically treated (e.g. cut, crushed) or to evaluate handling procedures for the bulk materials. 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 prEN 13205-1, Workplace exposure - Assessment of sampler performance for measurement of airborne particle concentrations - Part 1: General requirements EN 15051-1:2013, Workplace exposure - Measurement of the dustiness of bulk materials - Part 1: Requirements and choice of test methods EN 22768-1, General tolerances - Part 1: Tolerances for linear and angular dimensions without individual tolerance indications (ISO 2768-1) EN ISO 13137, Workplace atmospheres - Pumps for personal sampling of chemical and biological agents - Requirements and test methods (ISO 13137) ISO 15767, Workplace atmospheres - Controlling and characterizing uncertainty in weighing collected aerosols 3 Terms and definitions For the purpose of this document, the terms and definitions given in EN 1540 and EN 15051-1 apply. NOTE In particular, the following terms of EN 1540 are

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