Process and apparatus for the qualitative and quantitative analysis of solid material
US3939693A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1974 |
| Grant date | Feb 24, 1976 |
| Priority date | — |
| Expiry date | Apr 18, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N7/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a process and apparatus for measuring qualitatively and quantitatively at least one volatile fraction contained in a solid, a sample of a given weight of the solid is introduced in a first enclosure having a known internal capacity, the sample is then brought up to a temperature beyond the temperature at which said volatile fraction becomes gaseous in the first enclosure, the gasified volatile fraction is allowed to become distributed both in said first enclosure and in a second enclosure connected to the first enclosure, the second closed enclosure having previously been brought to a constant temperature having a known value which is higher than the temperature at which the gasified volatile fraction becomes liquid, and the pressure increase which occurs in the whole system due to the gasification of said volatile fraction is measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.