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closure torque test iconClosure Torque Testing

Closure 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.)

Benefits of closure torque testing

These include:

  • Ensuring the proper functioning of closures e.g. openability
  • Ensuring the integrity and safety of products
  • Reducing material costs and achieving lean manufacturing goals
  • Compliance with industry standards

 

Visit our new dedicated site for closure testing, focused on the specific requirements for the quality testing of all types of closures.

Related test types

See examples of our capabilities

Closure torque test standards

A number of standards for testing container closures have been developed. For example:

  • ASTM D2063 Measurement of Torque Retention for Packages with Continuous Thread Closures Using Non-automated (manual) torque testing equipment
  • ASTM D3810 Standard Test Method for Minimum Application Torque of Type IA Child-Resistant Closures
  • ASTM D3198 Test Method for Application and Removal Torque of Threaded or Lug-Style Closures
  • ASTM D3472 (Withdrawn January 2016) Test Method for Reverse-Ratchet Torque of Type IA Child-Resistant Closures
  • BS EN ISO 13127 Packaging - Child resistant packaging - mechanical test methods for reclosable child resistant packaging systems

More closure torque standards

See Mecmesin’s range of closure torque testers