Historical
ISO 6544:1981
Hand-held pneumatic assembly tools for installing threaded fasteners - Reaction torque and torque impulse measurements
Specifies a test method for tools and gives instructions on how measured data should be evaluated and presented. Is directly applicable to assembly torque control tools. In the case of stall type tools, only the reaction torque can be measured. Impacting, pulsing or ratcheting tools are not covered.
International Organization for Standardization [iso]