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mbar·L/s. Common testers include vacuum chambers for differential pressure testing and automated helium "bombs".
This video demonstrates the process of hermetic sealing, from vacuum baking to testing:
Key Testing Methods and Equipment:
- Helium Fine Leak Testing: Uses a mass spectrometer to detect tiny amounts of tracer helium entering or escaping the package, often using a "bombing" process where the part is pressurized in helium for hours before testing.
- Gross Leak Testing: Involves submerging the component in heated perfluorinated fluid under vacuum to detect escaping bubbles, indicating larger leaks.
- Vacuum/Pressure Decay Testers: Air leak test systems, like the Fukuda MSZ-0900, measure changes in pressure over time to determine seal integrity.
- Optical Leak Testing: Uses a Norcom Systems technique for measuring the physical deformation of a package lid under vacuum.
- Package Testing (Food/Pharma): Uses GBPI testers to evaluate bag and bottle sealing via, for example, the Labthink MFY-01 for detecting air leakage.
Industries Served:
- Electronics & MEMS: Ensuring delicate circuits are sealed against moisture.
- Aerospace & Defense: High-reliability component validation.
- Medical Devices: Hermetic seals for implants using technologies from firms like Cirtec.
- Packaging: Ensuring food, pharmaceutical, and consumer product shelf-life.
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Videos
Web results
Fine & Gross Leak Test
Micross
https://www.micross.com › component-inspection › fin...
Micross
https://www.micross.com › component-inspection › fin...
Also referred to as Seal or Hermeticity Test, this test verifies that the hermetic seal of a component is intact and typically follows trim and form and/or RHSD ...Read more
Hermetically Sealed Electronic Component Leak Detection
U.S. Food and Drug Administration (.gov)
https://www.fda.gov › inspection-guides › hermetically-s...
U.S. Food and Drug Administration (.gov)
https://www.fda.gov › inspection-guides › hermetically-s...
Nov 10, 2014 — The leak detection system discussed in this ITG is a mass spectrometer leak detector tuned to detect small quantities of helium.Read more
Leak detection in hermetically sealed devices
NASA (.gov)
https://ntrs.nasa.gov › api › citations › downloads
NASA (.gov)
https://ntrs.nasa.gov › api › citations › downloads
PDF
by I Litant1969 — Sensitive devices are frequently packaged in metal con- tainers which are hermetically sealed in order to protect them.Read more
15 pages
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Fukuda MSZ-0900 Air Leak Test System For Hermetic ...
eBay
https://www.ebay.com › itm
eBay
https://www.ebay.com › itm
Fukuda MSZ-0900 Air Leak Test System For Hermetic Seals [#B231012]. T. TJ Assets Store (18). 100% positive. Message. $2,599.00or Best Offer.Read more
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Air Leak Test System For Hermetic Seals | FUKUDA CO., LTD.
fukuda-jp.com
https://fukuda-jp.com › air-leak-test-equipment
fukuda-jp.com
https://fukuda-jp.com › air-leak-test-equipment
An air leak tester for testing the air tightness, sealing performance, and waterproofing of electronic devices, packaging containers (cosmetics, foodstuffs), ...Read more
People also ask
What is the hermeticity test method?
Hermetic Seal Testing
The HSHLD® method is a dry method that is sensitive to 10-12 atm cc/sec with cycle times less than 2 minutes and can measure devices with internal free volumes as small as 0.005cc.
The HSHLD® method is a dry method that is sensitive to 10-12 atm cc/sec with cycle times less than 2 minutes and can measure devices with internal free volumes as small as 0.005cc.
Hermeticity Testing Services | Oneida Research Services, Inc.
Oneida Research Services
https://orslabs.com › services › hermeticity
Oneida Research Services
https://orslabs.com › services › hermeticity
Web results
Accelerometers: Hermetic sealing and helium leak testing
Wilcoxon Sensing Technologies
https://wilcoxon.com › uploads › 2016/07 › Herm...
Wilcoxon Sensing Technologies
https://wilcoxon.com › uploads › 2016/07 › Herm...
PDF
Wilcoxon industrial sensors have the highest hermetic seal rating in the industry. Wilcoxon uses the Helium Leak Test (HLT) to qualify the sealing of all sensor ...Read more
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Web results
Flexible packaging test equipment Hermetic sealing tester ...
GBPI
https://www.gbpitester.com › flexible-packaging-test-eq...
GBPI
https://www.gbpitester.com › flexible-packaging-test-eq...
To test the hermetic sealing quality and performance of packaging bags, bottles, cans and so on, used in industries of food, beverage, pharmaceuticals, ...Read more
Seal Testing - InterTest
intertest.cc
https://intertest.cc › seal-testing
intertest.cc
https://intertest.cc › seal-testing
InterTest offers cost effective solutions to hermetic seal testing products which exceed Mil-Std-883 requirements, as well as less stringent requirements.Read more
