Method of measuring the efficiency of gas mask filters using monodispersed aerosols
US5059349A · kind A · utility
5Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1990 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Dec 31, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/084
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved process of passing an aerosol mixture through a filter. The asol mixture solely being a poly-alpha olefin having a content of chain lengths in % by volume of about: ______________________________________ % Carbon atoms, chain length ______________________________________ 0.6 20 82.1 30 16.0 40 1.0 50 2.0 60. ______________________________________
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.