ECHA, the European Chemicals Agency, have published new guidance on the Classification, Labelling and Packaging (CLP) Regulations covering hazards.
This does cover, in part, characterisation measurements for substances including pH, physical state, form, solubility, vapour pressure and
particle size as these can affect the substance risk significantly. The reference to particle size is of particular interest when we consider nanoparticles and the need to characterise these accurately.
The guidance also covers mixtures, so it becomes important to be able to determine the constituents and proportions of those constituents in a mixture to be able to gauge the hazard/risk of the mixture appropriately.
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