PERMEATION DEVICES

Brand Owner Address Description
METRONICS VICI METRONICS, INC. 29295 Twelve Oaks Poulsbo WA 98370 permeation devices, namely, permeation tubes for use in generation of calibration gas standards; diffusion devices, namely, permeable diffusion gas container for calibrating and quantifying gas;
 

Where the owner name is not linked, that owner no longer owns the brand

   
Technical Examples
  1. Method and apparatus for testing ultralow moisture permeation through a sample such as a thin barrier film by exposing one surface of a sample to be tested for moisture permeation to a predetermined humidity of HTO. The HTO permeating therethrough is collected in a stream of dry gas, preferably methane, at a known very slow flow rate, and monitored for its radioactivity content. By very carefully sizing the respective chambers, continuously monitoring using a particularly sensitive device and appropriately converting the signals, accurate assessment of permeation rates even as low as very small fractions of a gram of water per square meter per day can be obtained. Ultralow oxygen permeation is alternatively measured using