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What is EN 60825-1 and why does the standard matter?

EN 60825-1 is the relevant international standard on the safety of laser products. It defines the laser classes (1, 1M, 2, 2M, 3R, 3B, 4), the maximum permissible exposure (MPE) for eye and skin, the labelling requirements and the protective measures. The standard is legally binding in the EU and Germany for all commercially sold and operated lasers. Manufacturers must classify their devices to EN 60825-1 and label them accordingly. Operators must implement the safety measures matching the laser class – from Class 3R onwards a laser safety officer is mandatory in commercial use.