Method for measuring the efficiency of gas mask filters
US5059348A · kind A · utility
7Cited by
4References
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 is generated by nebulization of the mixture prior to penetration of the filter. The aerosol mixture being in %, by volume, of about: ______________________________________ % Chemical ______________________________________ 70-76 isostearic acid 6-7 isopalmitic acid 7-11 myristic acid 4-5 palmitic acid. ______________________________________
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.