Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1996-03-27
1997-02-18
Raevis, Robert
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
G01N 1700
Patent
active
056042957
ABSTRACT:
In the calibration of a dust concentration measuring instrument at very low dust in gas concentration levels dust is introduced at a known and uniform rate into a gas stream and the instrument is caused to provide a detected concentration value.
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patent: 5502998 (1996-04-01), Miller et al.
British-American Tobacco Company Limited
Raevis Robert
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