Explains laser classification and hazards. Describes the lasers that are permitted in school and the range of relevant practical work. Also desribes common devices which use lasers and how they might be used in school. Finally, describes the classification and uses of modern, bright LEDs.
GL101 - An introduction to GHS/CLP chemical hazard labelling
Describes the hazard labelling to be introduced by 2015 for all chemicals, as a consequence of the Global Harmonised System for such labelling. Explains what the new labels will look like, and what information they will include.