DIN is the industry scale of release-force settings for ski bindings. The lower the DIN, the lower the force required to release your boots from your bindings. DIN on ski bindings can be adjusted and should be set by a ski fitter before use, therefore this is just a guide to help you best choose bindings that will fit in the range of the DIN that you will need to have set.
Note: This chart is only for guide purposes. There are a number of factors which influence binding adjustment and the setting must be precise. This chart is only to be used to aid in the selection process for an appropriate model of binding. Do not try to set the DIN yourself.