Leak rates and uncertainties from this app are calculated from the readings you enter. They are for reference only and must be checked by a qualified engineer before they are used to accept or reject an enclosure, or for any safety, design or commercial decision.

Results are valid only when the method’s assumptions hold: a closed, rigid enclosure, ideal-gas behaviour, absolute temperatures representative of the gas, and readings whose uncertainties you have stated correctly. The assumptions and limitations are listed with the method.

The app does not replace your test procedure, the acceptance criteria of the standard or specification you work to, calibrated instruments, or engineering judgement.

To the extent permitted by law, the publisher accepts no liability for any loss or damage arising from the use of these results.