EN ISO 28927-1:2009 Hand-held portable power tools - Test meth for evaluation of vibration emission - Part 1: Angle and vertical grinders (ISO 28927-1:2009)手持便携式电动工具.振动辐射的评估用试验方法.第1部分:角式和立式研磨机 
This part of ISO 28927 specifies a laboratory method for measuring hand-transmitted vibration emission at thehandles of hand-held, power-driven drills and impact drills. It is a type-test procedure for establishing themagnitude of vibration in the gripping areas of a drill fitted with a drill bit. It is intended that the results be usedto compare different models of the same type of machine.This part of ISO 28927 is applicable to straight drills, drills with a pistol-grip and angle drills intended for drillingholes with rotating or impact action in all kinds of materials (see Clause 5), driven pneumatically or by othermeans. It is not applicable to heavy-duty drills with a screw feed or drills driven by a combustion engine.