http://www.documentbays.org/89982-bs-en-15051-1-2013.html

1 ScopeThis European Standard specifies the environmental conditions, the sample handling and analyticalprocedures and the method of calculating and presenting the results. Reasons are given for the need for morethan 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 toexpress and communicate the results to users of the bulk materials. Details of the scheme for each methodare 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 bulkmaterials (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 necessarystages that need to be taken to obtain values of the dustiness of a given bulk material.

2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and areindispensable 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 - TerminologyEN 15051-2, Workplace exposure - Measurement of the dustiness of bulk materials - Part 2: Rotating drummethodEN 15051-3, Workplace exposure - Measurement of the dustiness of bulk materials - Part 3: Continuous dropmethod3 Terms and definitionsFor 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.3.1inhalable dustiness mass fractionwI,tratio of the inhalable dust produced by the dustiness test procedure, to the test mass for the respective testmethod tNote 1 to entry: The different test methods are described in EN 15051–2 and EN 15051–3, and t has the value A andB for the two methods respectively.3.2respirable dustiness mass fractionwR,tratio of the respirable dust produced by the dustiness test procedure to the test mass for the respective testmethod tNote 1 to entry: The different test methods are described in EN 15051–2 and EN 15051–3, and t has the value A andB for the two methods respectively.3.3thoracic dustiness mass fractionwT,tratio of the thoracic dust produced by the dustiness test procedure to the initial mass for the respective testmethod tNote 1 to entry: The different test methods are described in EN 15051–2 and EN 15051–3, and t has the value A andB for the two methods respectively.

4 PrincipleA dustiness tester consists of the following elements:— dust generation section;— dust transfer section;— sampling section;