EN ISO 28927-4:2010

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Basic standards and vibration test codes
5 Description of the family of machines
6 Characterization of vibration
7 Instrumentation requirements
8 Testing and operating conditions of the machinery
9 Measurement procedure and validity
10 Measurement report
Annex A (informative) - Model test report for vibration
        emission of straight grinders
Annex B (normative) - Determination of uncertainty
Annex C (normative) - Design of test wheel
Bibliography
Annex ZA (informative) - Relationship between this European
         Standard and the Essential Requirements of
         EU Directive 2006/42/EC

ISO 28927-4:2010 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.ISO 28927-4:2010 is applicable to hand-held machines, 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), for use on all kinds of materials. It is not applicable to grinders used with wire brushes, nor is it applicable to die grinders where the inserted tool is mounted in a collet.