Process for measuring vapor transmission through materials
US5837888A · kind A · utility
50Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | May 14, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/086
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process for measuring the vapor transmission rate characteristics of a test material by first measuring the vapor transmission through a test chamber and sample material and subsequently repeating the measurement with the test material adjacent the sample material. By subtracting the first measured transmission rate reciprocal from the second measured transmission rate reciprocal, a value is determined which is the reciprocal of the vapor transmission rate characteristic of the test material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.