scope:

This part 3 of ISO 28927 specifies a laboratory method for measuring hand-transmitted vibration emission at the handles of hand-held polishers and rotary, orbital and random orbital sanders. These tools are intended for surfaces finishing processes and not intended for material removal. It is a type-test procedure for establishing the magnitude of vibration in the gripping areas of the tools when operating under type test conditions.
This part of ISO 28927 applies to hand-held polishers with circular polishing pad, rotary vertical and angle sanders and orbital and random orbital sanders (including grinding type tools fitted with a dual action orbital hub), intended for polishing of painted surfaces with buffing pads and for sanders using circular or rectangular sanding papers that are used for flat surfaces.
The power tools covered by this part of ISO 28927 may be pneumatically driven, or driven by other means.
Typical tools are illustrated in figure 1-8.
This part of ISO 28927 applies to the tools mentioned in clause 5. It does not apply to straight grinders
equipped with a sanding wheel and belt sanders.
It is intended that the results can be used to compare different models of the same type of power tool.