BS EN ISO 28927-4:2010+A1:2018

This standard BS EN ISO 28927-4:2010+A1:2018 Hand-held portable power tools. Test methods for evaluation of vibration emission is classified in these ICS categories:

• 25.140.10 Pneumatic tools
• 25.140.01 Hand-held tools in general
• 13.160 Vibration and shock with respect to human beings

This part of ISO 28927 specifies a laboratory method for measuring hand-transmitted vibration emission at the handles of straight grinders. It is a type-test procedure for establishing the magnitude of vibration in the gripping areas of a machine fitted with a specified test wheel and run under no-load conditions.

This part of ISO 28927 is applicable to hand-held machines (see Clause 5), driven pneumatically or by other means, intended for grinding and surface finishing using straight grinding wheels type 1, tapered wheels type 4 and cylindrical plugs, e.g. of type 16 (cylindrical plug, tapered cone), 18 (cylindrical plug, flat end), 18R (cylindrical plug, rounded end) and 19 (cylindrical plug, taper-roll shaped) and with wire brushes, for use on all kinds of materials. It is not applicable to die grinders where the inserted tool is mounted in a collet.

NOTE 1 Typical machines covered by this part of ISO 28927 are illustrated in Figures 1 to 3.

It is intended that the results be used to compare different models of the same type of machine.

NOTE 2 To avoid confusion with the terms “power tool” and “inserted tool”, “machine” is used hereinafter for the former.