2023 Mn REACH Conference September 26-28th Thon Hotel, City Centre, Brussels

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MARA's 2023 Mn REACH Conference is scheduled to take place on September 26-28 at the Thon Hotel City Centre, Brussels.

Speakers from the Manganese Industry, other Metal Consortia, European Metal Associations and Regulatory Experts will enlighten you on the short-term risks/threats on your businesses as well as your responsibilities under the Evaluation aspect of EU REACH


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Particle Size Distribution. Particle size data have been acquired using a procedure designed to comply with the European Commission technical guidance document Particle Size Distribution, Fibre Length and Diameter Distribution' (June 1996), which satisfies the requirements of OECD Guideline 110. On visual assessment, the test material was observed to be composed of a broad particle size range from approximately gravel sized pieces through to very fine dust. To represent a worst-case scenario for potential inhalation risk, the test material was sampled from the base of the container, where the finer fractions had settled, and the very largest particles were then removed from this subsample as not to skew the analytical results.

From this subsample, the percentage of test material with a particle size less than 100 µm was determined to be 3.5% by sieve analysis. This indicated that the test material was of a particle size that was essentially non-inhalable. It must be noted that this value may significantly overestimate the true fine particle fraction of the test material due to the sampling procedure, and also since the test material was observed to be physically brittle. Therefore, the fine particle size fraction may have been artificially increased by attrition of the sample during transportation to the test facility and also mechanical forces during the sieving procedure.


To obtain the full study, please contact: reach@manganese.org


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