When combined with our production leak test systems, leak test instruments, and leak detector rentals, our Leak Testing Services provide everything a customer might need to meet his production leak testing requirements. LACO’s broad experience with all leak testing methods along with our variety of in-house instruments, fixtures and systems make us well suited to perform a variety of leak testing services.

LACO’s in-house leak testing services meet a variety of our customer’s needs, including:

  • No-cost evaluation of customer-supplied test parts
  • Feasibility studies on pre-production parts
  • Helium permeation studies
  • Leak testing to validate new product designs and manufacturing process
  • Leak testing to ASTM and ASME specifications
  • Leak rate correlation studies to determine required leak rate limits for production leak testing
  • Low-volume quantity leak testing of pre-production or first article production parts
  • Leak testing of customer production parts when the cost of purchasing leak testing equipment cannot be justified
  • Consulting services to evaluate various test methods and test conditions

Contact us for a proposal, or for a no-cost evaluation of your test part. The no-cost evaluation typically includes in-house testing of your product on our equipment to determine feasibility, cycle time and leak rate sensitivity.

Our in-house capabilities and equipment include:

  • Helium mass spectrometer leak detectors
  • Helium sniffer leak detectors
  • Pressure and vacuum decay and mass flow instrumentation
  • Non-helium gas sniffers
  • RGA-based mass spectrometer leak detector for non-helium gases
  • Multiple sizes of vacuum test chambers and vacuum pumps
  • High sensitivity helium concentration measurements for permeation studies


  • Aerospace & Defense
  • Automotive & Transportation
  • Electronics
  • General Industrial
  • Medical & Pharmaceutical
  • Packaging
  • Power & Energy
  • Refrigeration & A/C