LACO manufactures a wide range of Helium Leak Standards using our proprietary micro tube capillary design. We are so confident in the reliability of this design we offer a limited lifetime warranty. These leak standards are available in both reservoir and open-style configurations. For leak rates in the 10-9 range and lower, select a permeation style helium leak standard with reservoir. Our Helium Leak Standards are used in a variety of applications including calibrating helium mass spectrometer leak detectors and helium leak test systems. Open-style helium leak standards can be built into customer test parts. For calibrating helium sniffer probe leak detectors see our Sniffer Leak Standards. We also offer OEM replacement leak standards for many models of helium mass spectrometer leak detectors, including LACO's TITAN VERSA helium leak detector.

All our leak standards are calibrated in our ISO 17025 accredited calibration lab.

For recalibration services, simply click the Ready to Recalibrate Your Leak Standard  button to the right to get started.

Select from the categories below to learn about the different types of Helium Leak Standards.

As LACO continues to grow to meet customer needs, we will be moving our leak standard manufacturing and calibration operations to a new, expanded location in our facility. From December 20th to January 14th, we will be unable to perform leak standard calibrations or offer new calibrated leaks. Please plan either sending your orders well before or after these shutdown dates. Note that vacuum gauge calibration orders will not be affected by this relocation.

We appreciate your business and understanding during this move. We are excited that these changes will allow us to better serve our customers for many years to come.