Closure Torque TestingClosure Torque Testing is a measure of the torque force required to either apply or remove a twist cap, stopper or lid on a container. This is frequently a two-stage measurement. If the cap is tamper-evident, strip torque, breakaway torque and bridge torque are measured. If the closure is child-resistant, measurement of the required release forces must also be made. Correct performance of container closures is always quality-critical, and in many cases it is safety-critical. (See Testing Reclosable Child-resistant Closures.)
These include:
Visit our new dedicated site for closure testing, focused on the specific requirements for the quality testing of all types of closures.
A number of standards for testing container closures have been developed. For example:
