1) Good practice from HSE (see www.hse.gov.uk), including advice from COSHH essentials: Easy steps to control chemicals. This guide is for supplied substances. It takes you through a simple risk assessment and identifies what is needed to control exposure. It provides detailed advice on control measures for a number of common industrial operations. If the controls the company has in place are the same or more stringent than those recommended by the guide, then the company are likely to be taking the right type of action.