Hydrometers for Biodiesel
Hydrometers For Biodiesel
Find out more about hydrometers and there use during the manufacture of biodieselbiomass | transport
is a simple (typically glass) instrument used to measure the density
has a density of 0.86-0.90
g/ml (grams per millilitre - pure water is roughly 1g per ml). Therefore a hydrometer
which covers that full range is required to check the quality of biodiesel produced. A brewer's hydrometer
as the general density range for brewers measuring liquid as sugar turns to alcohol is 0.990-1.070 g/ml.
used in the commercial production of biodiesel is a BS718 M50SP
with a range of 0.850-0.900 g/ml. It is 270mm long with 0.001 g/ml divisions, and +/- 0.0006 g/ml at 15 degrees Celcius.
For domestic (non-professional) production of biodiesel a cheaper option would be a BS718 M100
with a range of 0.800-0.900 g/ml, 0.002 g/ml divisions, and 0.002 g/ml accuracy at 20 degrees Celcius. This hydrometer is 250mm long.
Stevenson Reeves Ltd
has the following very useful guide: How to Use a Hydrometer
Click here for more information about biodiesel equipment
Article Last Modified: 12:23, 16th Dec 2008
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