English to Russian Science Chemistry; Chem Sci/Eng MSDS, REACH

DU Scaling tool

Under REACH, the Downstream User (DU) is obliged to check compliance with the Exposure Scenario (ES) forwarded by the Registrant. The information on Operational Conditions (OCs) and Risk Management Measures (RMMs) given in the ES should be compared with the actual OCs and RMMs of the DU. OCs/RMMs may not always be completely identical with the OCs/RMMs specified in the ES, and may actually deviate from them. When one or more of the actual OC and RMM differ from those of the ES, it is not immediately apparent whether the use is still in compliance with the ES. In all cases, the DU should still be able to ascertain that he is in compliance with the ES.

In the ES scaling tool sheet, the metal of concern should be selected. This will automatically fill out several metal-specific parameters such as regional concentrations, PNECs and solid-water partition coefficients. Key OC and RMM can be changed according to the site-specific OC and RMMs of the DU. This includes general parameters such as release factors, dilution, presence/absence of municipal sewage treatment plant, etc



In the advanced mode (by clicking on plus buttons on the left), the DU can enter monitoring data or bioavailability-corrected PNECs (Predicted No Effect Concentrations), for those metals for which relevant models are available



In the background, the full EUSES model is run to calculate exposure and risks



The resulting risk characterisation ratios allow the DU to assess safe use. In this way, the DU scaling tool enables the DU to check compliance with the ES if his OCs or RMMs differ from those in the ES

For the latest version of the tool and ensuring you are automatically up to date on any future updates you can also register yourself and download the tool from the Arche-consulting