Testing and acceptance
Define cap application, removal torque and leak performance as separate checks. A supplier setting and a measurement taken later from a capped bottle are not interchangeable results. The approved bottle-cap combination and test procedure should determine the acceptance limits.
Identify the exact bottle neck, closure, liner where used and tamper-evident design. Ask the packaging supplier and buyer quality team for the relevant application guidance and acceptance requirements. Do not copy a torque target from an unrelated cap size.
State whether the recorded value is an application setting, measured application torque or removal torque. Name the instrument, method, units, conditioning and elapsed time before measurement. Use the applicable method agreed with the buyer's quality team and closure supplier.
Specify the test condition, sample preparation, observation period and pass/fail criterion through the responsible quality procedure. Ask what leak behavior the chosen method can detect. A satisfactory torque result must not silently replace a required leak check.
Record misapplication, thread damage, failed measurements and leakage by the agreed defect category. When settings or parts change, retain the original result and the retest conditions. Resolve whether a failure came from packaging, setup or equipment before release.
Obtain the closure-specific guidance and agree limits with the packaging supplier and buyer quality team. This website does not prescribe one torque value for all closures.
No. Identify which quantity is reported and the test conditions. A later removal measurement should not be described as the original application setting.
The checks address different agreed requirements. Keep both where specified in the acceptance plan; do not substitute one without the quality owner's approval.
Guides
Next procurement decision
Name the approved samples, test duration, good count, rejects, inspection records and open-item closure.