Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Commercial helium permeation leak standards: Their properties and reliability



Patrick J. Abbott, S A. Tison


Standard leaks or leak artifacts are used extensively in industrial and research environments, typically for the calibration of helium leak detectors. The most commonly used leak is the helium permeation type, which uses a glass, quartz, or polymer barrier to restrict the flow of helium via diffusion. Physical leaks, on the other hand, use a physically restrictive element to limit the flow. This article will discuss the properties and reliability of helium permeation standard leaks, based on eight years of accumulated calibration data. Physical helium leaks will not be discussed since relatively few have been calibrated at the National Institute of Standards and Technology.
Journal of Vacuum Science & Technology A


Abbott, P. and Tison, S. (1996), Commercial helium permeation leak standards: Their properties and reliability, Journal of Vacuum Science & Technology A, [online], (Accessed April 14, 2024)
Created February 12, 1996, Updated February 17, 2017