LEAKLAB · TESTING AND ENGINEERING
The test programme considers packaging material, closure, contents, allowable pressure difference and the required condition after testing.
Packaging-specific conditions
Select the relevant test cycle, medium and observation method for the packaging design and applicable document. The programme identifies pressure or vacuum, holding time, specimen preparation and the acceptance rule.
Additional helium or vacuum diagnostics may be agreed for closures, joints and welds when the packaging can withstand the conditions. Such diagnostics do not replace the required test conditions of the product standard.
Separate transport simulation from leak location
A reduced-pressure test representing air transport and a helium search for a local defect have different objectives. The applicable current document and edition must be agreed for a new order rather than copied automatically from an older test instruction.
Preparing and verifying the test
- Review the drawing, materials, internal volumes, test boundary and required result.
- Agree the document edition, allowable pressure difference, vacuum and temperature, acceptance criterion and required system sensitivity.
- Clean and dry the object, prepare fixtures and exclude leakage from the test connections.
- Check instrument metrological status and the working characteristics of the complete arrangement; use an appropriate reference response for the selected method.
- Perform the agreed scan or measurement cycle and record the actual conditions. Confirm suspected leaks by repeat tracer-gas exposure where applicable.
- Check system stability after the test and report the result against the agreed criterion.
What the customer receives
The agreed scope can include a test programme, operating or inspection instructions, measured results, a map of located leaks and a technical conclusion. The report identifies the object and tested regions, applicable programme, instruments and metrological status, pressure and temperature, response checks, observations and limitations.
Define your task
Send a drawing or sketch, material, dimensions and volume, working pressure, allowable vacuum and temperature, leak-tightness requirement, number of items, site and schedule. These inputs determine the method, fixture, equipment and reporting scope.
Discuss a test programme