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FR2543682A1
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Methods and apparatuses for optically and continuously measuring the hydrocarbon content of a liquid
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FR2238360A5
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Floating oil slick collector - with separate floating inflow sleeve around tank top and pumps for oil and water
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CA969249A
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Automatic air-fuel ratio correction in combustion control system
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FR2123949A5
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Purity control - of ballast discharged from an oil tanker
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FR2123950A5
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Control system for vortex layer sepn of liquids - - partic of oil from water
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FR2110742A5
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Automatic periodic water testing appts - for determn of chemical oxygen demand
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FR2087337A5
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Automatic colorimetry - periodic samples of soln mixed with reagents and analysed in colorimeter
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