Optics: measuring and testing – Sample – specimen – or standard holder or support – Fluid containers
Patent
1994-10-21
1995-12-12
Pham, Hoa Q.
Optics: measuring and testing
Sample, specimen, or standard holder or support
Fluid containers
356440, 250576, G01N 110
Patent
active
054754860
ABSTRACT:
A flow cell system for use with a nephelometer (i.e., turbidimeter) to measure the turbidity of a liquid (e.g., water). The flow cell includes a transparent sample cell, an inlet port on the upper end of the cell, an outlet port on the upper end of the cell and another outlet port on the lower end of the cell. The upper outlet port collects and expels air bubbles and particles that tend to float in the sample. The lower outlet port collects and discharges settled solids. Measurement can be made on a dynamic (flowing) sample or a portion of the sample may be measured under static (non-flowing) conditions.
REFERENCES:
patent: 3345910 (1967-10-01), Rosin et al.
patent: 3508837 (1970-04-01), Hrdina
patent: 3514210 (1970-05-01), Hrdina
patent: 3582222 (1971-06-01), Hoblik
patent: 3734601 (1973-05-01), Heiss
patent: 3867042 (1975-02-01), Mayer et al.
patent: 3871770 (1975-03-01), von Behrens et al.
Edmundson Dean P.
Hach Company
Pham Hoa Q.
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