BS ISO 5393:2017
$198.66
Rotary tools for threaded fasteners. Performance test method
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 52 |
This document specifies a laboratory performance test method for power assembly tools (referred throughout the document as “tool”) for installing threaded fasteners.
It provides a method for the measurement of torque repeatability (scatter)
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over a range of torque rates as specified in this document,
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over a range of torque adjustment as defined by the manufacturer, and
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over a number of operating cycles as defined by the manufacturer.
It provides a method for the measurement of the precision of the built-in torque measurement system for tools incorporating such a feature. See Annex E.
It gives instructions on equipment parameters, what to test for and how to evaluate and present the test data.
It is applicable to tools
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of any power source, e.g. pneumatic, hydraulic, and electric, including battery-powered,
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which apply torque in a generally continuous manner, and
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within the torque range 0,5 Nm to 2 000 Nm. Outside this range, it is acceptable to modify the test method providing that the modification is documented in the test report.
It is not applicable to
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impact or impulse wrenches,
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ratchet wrenches or wrenches with ratcheting clutches, and
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other tools which advance fasteners in discontinuous increments, overcoming static friction at each increment.
It allows a test to be performed at any test torque level; however, in order to minimize the number of test joints necessary for a wide range of test torque levels, a list of preferred test torque levels is provided in Annex A.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | Foreword |
| 8 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 12 | 4 Symbols |
| 13 | 5 Determination of torque scatter 5.1 General rules for performance tests 5.1.1 Measurements 5.1.2 Ambient conditions 5.1.3 Test installation |
| 16 | 5.1.4 Test tool |
| 17 | 5.1.5 Test tool condition 5.1.6 Power media |
| 18 | 5.2 Test fixtures 5.2.1 General 5.2.2 Test joint |
| 20 | 5.2.3 Measuring instrument 5.2.4 Test requirements |
| 22 | 5.3 Test method 5.3.1 Test cycles 5.3.2 Run-down phase of the test cycle 5.3.3 Alignment |
| 23 | 5.3.4 Torque measurement 5.3.5 Tightening time 5.3.6 Graphical presentation 5.3.7 Electronically controlled tools 5.4 Measurement uncertainty 6 Tool performance over a defined range of torque adjustment 7 Tool performance over a defined number of operating cycles 7.1 General |
| 24 | 7.2 Operating cycle requirements 7.2.1 Tool operation 7.2.2 Torque level 7.2.3 Operating cycle test joint |
| 25 | 7.2.4 Ambient conditions 7.2.5 Maintenance |
| 26 | 7.2.6 Method 7.2.7 Graphical presentation 7.3 Performance test 8 Determination of the combined precision of built-in torque measurement systems 8.1 General |
| 27 | 9 Evaluation of test results 9.1 Torque scatter 9.2 Combined torque scatter |
| 28 | 9.3 Torque scatter over a defined range of torque adjustment 9.4 Torque scatter over a defined number of operating cycles 10 Presentation of test results 10.1 Test report |
| 30 | 10.2 Tool performance rating |
| 31 | Annex A (informative) Preferred test torque levels |
| 32 | Annex B (informative) Example test fixtures for rotary tools for threaded fasteners |
| 37 | Annex C (informative) Test joint (additional information) |
| 39 | Annex D (informative) Determination of uncertainty of test joint measurements |
| 43 | Annex E (informative) Determination of the combined precision of built-in torque measurement systems |
| 46 | Annex F (informative) Example of performance test report |
| 49 | Annex G (informative) Tool performance rating |
| 51 | Bibliography |
