Abstract
A permeation standard is provided. The permeation standard may include a substrate that is impermeable to an analyte, an orifice disposed in the substrate, and a permeable material filling the orifice. The orifice and the permeable material are configured to provide a predetermined transmission rate of the analyte through the permeation standard. Also provided herein are methods for forming the permeation standard.
Original language | American English |
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Patent number | 9,823,177 B2 |
Filing date | 21/11/17 |
State | Published - 2017 |
NREL Publication Number
- NREL/PT-5K00-70599
Keywords
- permeable material
- substrate
- transmission rate