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Our mission since 1969 has been to provide excellence in Radioisotope leak detection with products and services that go far beyond the state of the art

Isovac Engineering Inc. test lab is approved by the Defense Logistics Agency (DLA) for suitability and is equipped to perform testing on military devices in the following test areas:

Mil-Std 883/Test Method 1014
Conditions:  B1, B2 and B1/B2, B3, G1

Mil-Std 750/Test Method 1071
Conditions: A, G1, G2, G1/G2, Gt

The RadifloŽ non-destructive Radioisotope leak detection system is of vital importance to you, as manufacturer or user of hermetically sealed components. Listed below are five reasons which prove RadifloŽ to be the finest, yet least expensive leak detection system available.

Five Reasons Why

Radflo 1 It provides a test for component leakage after all sealing operations are complete. This is most important to receiving as well as production test departments.
Isovac 2 Components which fail when extremely small leaks occur, can now be tested to 10-12 cc/sec by development or production departments. You can be assured that your components will function after long shelf life.
Krypton 85 3 RadifloŽ tests non-destructively. Sensitive components in sealed containers can be graded and used in applications according to their seal requirements. Transistors which can't be used in missiles, can be used in products with less critical specifications, not thrown away.
leak testing 4 RadifloŽ can process thousands of components daily with immense savings in production and testing cost without bottlenecking production. Example: transistors tested for less than one cent each, included material, labor and burden.
IsoVac 5 RadifloŽ can be automated thereby controlling to a great extent the often inevitable slip-ups due to the human mechanism (human error).

Hermetically Sealed Components

Tested By Radiflo

  • Transistors

  • Diodes

  • Electron tubes

  • Bourdon tubes

  • Bellows

  • Resistors

  • Capacitors

  • Relays

  • Pressure Transducers

  • Squibs  for Automotive Air Bags
  • Inflators for Automotive Air Bags


  • Cochlear implants Bionics
  • Quartz crystals

  • Sealed Temperature elements

  • Gyros

  • Carburetor floats

  • Heart Pacemakers Bionics
  • Switches
  • High frequency Oscillators 
  • Carburetor floats

  • Sealed Missiles Assemblies


Tested by Radiflo

Tested by Radiflo



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RadifloTM is a registered trademark owned by IsoVac Engineering, Inc. 

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Krypton-85 radioactive gas