BS EN ISO 28927-2:2009+A1:2017
$198.66
Hand-held portable power tools. Test methods for evaluation of vibration emission – Wrenches, nutrunners and screwdrivers
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 58 |
This part of ISO 28927 specifies a laboratory method for measuring hand-transmitted vibration emission at the handles of hand-held power-driven wrenches, nutrunners and screwdrivers used for tightening and loosening threaded fasteners. It is a type-test procedure for establishing the magnitude of vibration in the gripping areas of a machine when operating at a specified load. The method has been tested for fastening tasks only. It is intended that the results be used to compare different models of the same type of machine.
This part of ISO 28927 is applicable to hand-held machines (see Clause 5), driven pneumatically or by other means, with impact or impulse action, of shut-off, ratchet or stall type, and of all designs — straight, pistol-grip, angle or bow handle. It covers machines with 6,3 mm to 40 mm (1/4 in to 11/2 in) male or female drive output shafts, as well as other geometries. It is not applicable to nutrunners designed to be used only in torque reaction arms.
NOTE To avoid confusion with the terms “power tool” and “inserted tool”, machine is used for the former throughout this document.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | European foreword Anchor 7 Foreword to amendment A1 |
| 6 | Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC, amended by Directive 98/79/EC |
| 7 | Annex ZB (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC |
| 9 | Foreword |
| 11 | Introduction |
| 13 | 1 Scope 2 Normative references 3 Terms, definitions and symbols |
| 14 | 3.1 Terms and definitions |
| 15 | 3.2 Symbols 4 Basic standards and vibration test codes 5 Description of the family of machines |
| 19 | 6 Characterization of vibration 6.1 Direction of measurement 6.2 Location of measurements |
| 24 | 6.3 Magnitude of vibration |
| 25 | 6.4 Combination of vibration directions 7 Instrumentation requirements 7.1 General 7.2 Mounting of transducers 7.2.1 Specification of transducer 7.2.2 Fastening of transducers 7.3 Frequency weighting filter 7.4 Integration time |
| 26 | 7.5 Auxiliary equipment 7.6 Calibration 8 Testing and operating conditions of the machinery 8.1 General 8.2 Operating conditions 8.2.1 Pneumatic machines |
| 27 | 8.2.2 Hydraulic machines 8.2.3 Electrical machines 8.3 Other quantities to be specified 8.4 Attached equipment, work piece and task 8.4.1 Loading device for wrenches, nutrunners and screwdrivers with impact or impulse mechanism 8.4.2 Selection of size of brake block and socket |
| 28 | 8.4.3 Feed force 8.4.4 Test procedure |
| 30 | 8.5 Operators |
| 31 | 9 Measurement procedure and validity 9.1 Reported vibration values 9.2 Declaration and verification of the vibration emission value |
| 32 | 10 Measurement report |
| 33 | Annex A (informative) Model test report for vibration emission of wrenches, nutrunners and screwdrivers |
| 35 | Annex B (normative) Determination of uncertainty |
| 37 | Annex C (normative) Brake devices — Assembly specification and example drawings of parts |
| 43 | Annex D (informative) Drawings, example of brake blocks |
| 56 | Bibliography |
