BS ISO 5393:2017

1   Scope 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)

       —  over a range of  torque  rates as specified in this document, 
   
   
     
       —  over a range of  torque  adjustment as defined by the manufacturer, and 
   
   
     
       —  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

       —  of any power source, e.g. pneumatic, hydraulic, and electric, including battery-powered, 
   
   
     
       —  which apply  torque  in a generally continuous manner, and 
   
   
     
       —  within the  torque  range 0,5 Nm t...