This International Standard specifies laboratory measurement methods for mass and polar moment of inertia of alpine skis. If laboratory measurement data are determined and published by the ski manufacturer or other institutions, standard measurement procedures are recommended to ensure comparability. This International Standard also specifies a tolerance range which shall be met by the measurement data of all manufactured skis, if for the specific model length measurement data are published by the manufacturer of the ski. NOTE The appropriate ski length should be given with the published measurement data. It is not the purpose of this International Standard to evaluate the measurement data with regard to their influence on the quality of the ski.