FAQ #10
Q. How does changing the operating temperature for a permeation tube affect the emission rate?
A. If a permeation rate is already known at a given temperature, then for each 10 °C increase in temperature, the emission rate roughly doubles. This is a rough rule of thumb for disposable tubes, and can be highly inaccurate. This rule of thumb is not linear.
Note: This rule generally only applies to disposable tubes and does not apply to refillable tubes.
A good reference for permeation tube information is Gerald D. Mitchell’s paper, "A Review of Permeation Tubes and Permeators," Separation and Purification Methods, 29(1), 119-128 (2000).)