ASTM D3198 – Standard Test Method for Application and Removal Torque of Threaded or Lug-Style Closures (Withdrawn 2016)
Description:
Significance and Use
These torque measurements are of value in:
5.1.1 Rating the performance of automatic capping machines,
5.1.2 Measuring any tendency for threaded or lug-style closures to loosen during storage or shipment of the package, and
5.1.3 Measuring the force required to break hard plastic and overturn or “strip” soft plastic and metal closures.
The method may be used to establish performance specifications.
Scope
1.1 This test method covers the application with a given torque of a threaded or lug-style closure to a container, and measures the torque required to unscrew the closure from a container.
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.
ASTM D3192