Selective refractometry of materials involves sensitizing measuring surface of measurement prism before material to be tested is set on measuring surface for refractive index determination
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Online continuous determination of the chemical oxygen requirement for oxidation of dissolved and suspended matter in sewage water by simultaneous determination of water refraction index and turbidity number in a transparent pipe
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Use of cross flow membrane filter to remove cloudiness from soln.
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Temperature controlled cell for miniaturised measurement systems
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Brake for vertical movement of draughting machine - is actuated by any sudden movement of drawing board
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Scanning head
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Polarimeter
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Drawing head
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Brake for a drawing table
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ELECTRONIC REFRACTOMETER
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Brake for the trolley of a drawing machine
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Brake for the trolley of a drawing machine
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Refractometer
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Plotter arrangement
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Mechanical angle-correction device for a drawing head
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Drawing head with mechanical base adjustment and digital angle recording
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LIGHT ELECTRIC POLARIMETER, IN PARTICULAR CIRCUIT POLARIMETER
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POLARIMETERS
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Fluid refractive index measurement system - uses parallel beam of light part of which is reflected from boundary between glass and fluid
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Electrical or electronic data processor - feeds parallel streams of measurements and corrections to calculator which uses polynomial quadratic correction function
