Indicator device for the quantitative determination of metal cyanides in aerosol form
US4271125A · kind A · utility
7Cited by
1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1979 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Nov 13, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/172307
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An indicator device for the quantitative determination of aerosol-type metal cyanides, including a tube provided with a bore extending therethrough, a front layer of a substrate material impregnated with sulfuric acid or phosphoric acid and a following indicating layer of a substrate impregnated with mercuric chloride and methyl red.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.