Method for measuring material permeability characteristics
US5591898A · kind A · utility
68Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1995 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Oct 12, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/0826
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for measuring the permeability of a gas through a material, wherein the steps include exposing the material to the gas to be measured and measuring the outgassing characteristics of the material over increments of time to develop exponential expressions representative of the measured amounts and solving the exponential expressions for the diffusion coefficient D and the solubility coefficient S; and then calculating the permeability of the material by forming the product of the diffusion coefficient D and the solubility coefficient S.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.