Calibrated permeation standards
US9823177B2 · kind B2 · utility
1Cited by
4References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2015 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Jan 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/0826
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.