BS EN 17199-1:2019 pdf free.Workplace exposure – Measurement of dustiness of bulk materials that contain or release respirable NOAA and other respirable particles.
BS EN 17199-1 This document provides the methodology for measuring and characterizing the dustiness of a bulk material that contains or releases respirable NOAA and other respirable particles. In addition, it specifies the environmental conditions, the sample handling procedure and the method of calculating and presenting the results. Guidance is given on the choice of method to be used. The methodology described in this document enables: a) the quantification of dustiness in terms of health related dustiness mass fractions, b] the quantification of dustiness in terms of a number-based dustiness index and a number-based emission rate, and c) the characterization of the aerosol from its particle size distribution and the morphology and chemical composition of its particles. NOTE 1 Currently, no number-based classfication scheme in terms of particle number has been established for particle dustiness release. Eventually, when a large enough number of measurement data has been obtained, the intention is to revise this document and to introduce a number-based classification scheme. This document is applicable to all bulk materials, including powders, granules or pellets, containing or releasing respirable NOAA ad other respirable particles. NOTE2 The vortex shaker method specified in part 5 of this standard series has not yet been evaluated for pellets and granules. NOTE3 The rotating drum and continuous drop methods have not yet been evaluated for nanofibres and nanoplates. This document does not provide methods for assessing the release of particles during handling or mechanical reduction by machining (e.g. crushing, cutting, sanding, sawing) of nanocomposites.The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.The dustiness data can be used to understand the dustiness behaviour of the bulk material and provide information to be used in ranking exposure potentials or as input for quantitative exposure assessment modelling. They can be compared to data obtained from a material of the same chemical composition with different properties (e.g. differing in particle size, shape, coating or functionalization). Clause 8 describes how the measured data shall be evaluated.BS EN 17199-1 pdf download.