When hazardous substances are registered under REACH, it is necessary to make an assessment of risk for known uses of the substance and resulting mixtures to ensure that the uses for which are ‘suitable’ and risk can be managed. As part of this, exposure estimates resulting from scenarios of use are part of the chemical safety report (CSR) and the results of the CSR need to be communicated onwards to downstream users. The SDS is the primary tool for communication and it is now necessary to identify these uses and describe the scenarios of use that have been considered when registering substances. This extended SDS is now required for registered hazardous substances and as they filter down the supply line, the findings will need to be taken into account by those preparing mixtures; in due cause, all hazardous chemical materials will need to have associated exposure scenarios. The exposure scenario (ES) for each of the uses identified in Section 1 of the SDS therefore needs to be part of the extended SDS and needs to be readable and relevant for the anticipated users (customers). The level of detail will reflect the degree of hazard and the knowledge of the recipient. This one-day course aims to cover the basic principles of exposure assessment and the extended SDS, dealing mainly with the technical concepts and linking in with regulatory requirements. This goes beyond the CHCS seminar in June 2011 by providing technical basis with examples and describing implications for SDS recipients and authors. http://www.chcs.org.uk/training/chcs-sds-training-module-20.pdf
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