Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Sampler – constituent separation – sample handling – or sample...
Patent
1995-05-01
1997-06-24
Williams, Hezron E.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Sampler, constituent separation, sample handling, or sample...
73 6141, 422101, 137110, 137340, 13762528, 137559, 210607, 210765, 210805, G01N 1100, G01N 100, H01F 2710, B01D 2126
Patent
active
056418957
ABSTRACT:
A method for qualifying a chemical distribution system and components used therein to ensure that the quantity of contaminants extracted from the system by the chemical is below a predetermined specification level. A volume of the chemical is continuously circulated through the system. The concentrations of extracted contaminants in the chemical are periodically measured, and the contaminant extraction rate determined as a function of the measurements. The system is qualified for production when the extraction rate has decreased to the specification level.
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FSI International Inc.
Wiggins J. David
Williams Hezron E.
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