Rigana supplies a range of hydrometers that measure the density of different liquid products, including petrol, illuminating paraffin and diesel.

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Certified calibration for hydrometers is available if required. “L 50” series graduated 0.0005 g/ml.
Common hydrometer ranges:

Petrol: 0.700 – 0.750
Illuminating paraffin: 0.750 – 0.800
Diesel: 0.800 – 0.850

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