Over deze norm
This International Standard specifies a laboratory performance test method for power assembly tools (referred throughout the standard as ‘tool’) for installing threaded fasteners. It provides for the measurement, under specified conditions, of torque repeatability (scatter) - over a specified range of joint torque rates; - over a defined range of torque adjustment; - over a defined number of operating cycles. It provides for the measurement of the precision of the built-in torque measurement system for tools incorporating such a feature. It gives instructions on equipment parameters, what to test for and how to evaluate and present the test data. It is applicable to tools - of any power source; e.g. pneumatic, hydraulic, and electric, including battery-powered tools; - which apply torque in a generally continuous manner. It is not applicable to - impact or impulse wrenches; - ratchet wrenches or wrenches with ratcheting clutches; - 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. Part 2 of this standard deals with the specification of performance tests for in-use verification of tools for installing threaded fasteners.
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||Rotary tools for threaded fasteners - Performance test method