Click on any of the links below to download.

• CHLD PowerPoint
• Cumulative Helium Leak Detector
• Howl and Mann Leak Rate
• Leak Testing to Predict RGA Failures
• MD&D Article
• Measuring Leak Rates with CHLD
• New Leak Test Method Hermetic Pkg
• Value of RG
• Why We're Excited About CHLD
  

Click on any of the links below to download.

October, 3 2007
Hi-Rel Labs purchased Pernicka's Cummulative Helium Leak Detection (CHLD)

September 10, 2007
Tighter pass/fail limits for sealed packages mandated

May 22, 2007
Breakthrough CHLD Hermetic Testing Method approved by Military Standards Body