ISO 17104:2026
ISO 17104:2026 Rotary tools for threaded fasteners - Impulse and impulsing tools - Performance test method
standard byInternational Organization for Standardization , 03/01/2026
standard byInternational Organization for Standardization , 03/01/2026
This document specifies a laboratory performance test method for hydraulic impulse and electric impulsing tools for installing threaded fasteners in a laboratory environment, and for power assembly tools (referred throughout the document as “tools”) for installing threaded fasteners. It gives instructions on the procedure, performance parameters to test and how to evaluate and present the test data.
u000bIt also provides a method for the measurement of torque repeatability (scatter)
u000bu000b over a range of torque rates as specified in this document, andu000bover a range of torque adjustment as defined by the manufacturer.u000bu000bIt gives instructions on equipment parameters, what to test for and how to evaluate and present the test data.
u000bIt is applicable to tools
u000bu000bof any power source, such as pneumatic or electric, including battery-powered,u000bwhich apply torque in discontinuous increments, andu000bwithin the torque range 0,5N·m to 800N·m. Outside this range, it is acceptable to modify the test method providing that the modification is documented in the test report.u000bu000bIt is not applicable to
u000bu000bimpact wrenches, andu000bratchet wrenches or wrenches with ratcheting clutches.u000bu000bThe relationship between torque measurements and clamp force-based tests is commented on in AnnexA.
u000bThe use of tools using discontinuous operation of the motor to provide torque impulses is discussed in AnnexB.
u000bIt requires manufacturers to perform tests over their defined torque range of the tool; however, it allows users to perform single point tests 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 AnnexC.