Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Apparatus and method for determining the settling rate of solids or particulate bearing liquids in a continuous process or flowing stream in which a sample of the material is periodically selected and placed in a chamber which is transparent or has a transparent portion through which a light beam can pass such that a detector detects the amount of light passing through the chamber and the material and wherein the light transmissivity at various times is recorded and used to calculate the partial settling rate, the full settling rate and the percentage of solids or parts per million in the sample.
patent: 2379158 (1945-06-01), Kalischer
patent: 2725782 (1955-12-01), Worley
patent: 3261256 (1966-07-01), Morton, Jr.
patent: 3519353 (1970-07-01), Franz et al.
patent: 3604924 (1971-09-01), Standaart
patent: 3715761 (1973-02-01), Drekter et al.
Nalco Chemical Company
Roskos Joseph W.
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