Low flow sampling and analysis system

Details Low flow sampling and analysis system Low flow sampling and analysis system

1986-12-16

1988-04-19

Nozick, Bernard

Measuring and testing

Sampler, sample handling, etc.

Analyzer supplier

55 97, 55270, 55267, 7386311, 7386323, 7386331, 73 23, G01N 100

Patent

active

047381477

ABSTRACT:
A method and apparatus are disclosed for measuring the gaseous content of industrial process gas streams. Gas is removed from the stream at a low flow rate, under 1 liter per minute, and is passed through a heated filter to remove particulates. The gas is then cooled to about 35.degree. to 70.degree. F. in order to condense water from the stream, and is passed through a metering pump which supplies a precisely metered amount of gas which can be mixed with air for dilution. The gas is then analyzed for the desired components.

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patent: 4257258 (1981-03-01), Bovenlander
patent: 4485666 (1984-12-01), Higgins et al.

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