Posts tagged 'specific gravity'

Digital Refractometer
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Q. How do we identify which type of glycol we have in our HVAC system?

A. Yes it is possible to differentiate between ethylene glycol and propylene glycol using  both refractive index and  specific gravity. You will need: Digital refractometer for glycol,  hydrometer 1.000-1.500 with subdivisons 0.005, hydrometer jar 300x50mm [caption id="attachment_12965" align="alignleft" width="321"] Digital refractometer for glycol[/caption] The key to differentiate the tw...
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What is a degree Baumé Scale?

The Baumé scale is a measure of a solution's specific gravity, not its concentration, you'll have to convert degrees Baumé to a specific gravity, and then use the specific gravity to look up the concentration of your solution from a table in a handbook. For example, the CRC handbook has tables that relate specific gravities to concentrations of various liquids. The French chemist Antoine Bau...

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What's the difference between a Hydrometer and a Brineometer?

A hydrometer is an instrument that is made of glass and consists of a cylindrical stem and a bulb weighted with mercury or lead to make it float upright. It is used to measure the Specific Gravity (SG) of liquids. In other words the ratio of density of the liquid to the density of water.The SG of water is 1.000 at 4°C. For example the lower the density of a substance the farther the h...

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