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How is the airtightness leakage rate calculated?

2019-08-29View Original

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How is the airtightness leakage rate calculated?
Reply #22019-08-29
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Reply #32019-08-30
Generally, it is considered acceptable if the pressure drop within 24 hours of maintaining pressure is within 0.5%, including in negative pressure conditions; Of course, it is also related to the specific process conditions; this standard can be adjusted slightly according to the actual situation. Thank you!
Reply #42019-08-30
When using nitrogen, the pressure is maintained for 24 hours; a pressure drop of less than 0.5% is considered acceptable. With helium, the pressure is maintained for two hours. A experiment was just completed following these procedures

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