How to Measure Both Glycerin and Propylene Glycol with a Refractometer.

Hi, will your hand held (both glycerin/ glycol) read below zero. In Utah we are required to provide -0 readings. Please let me know.

The glycerin scale on the Palm Abbe digital refractometer can measure the freeze point of glycerin from +32 to -46 °F. It can read glycerin concentration from 0 to 100%. The propylene glycol scale for this refractometer can measure propylene glycol freeze point from +32 to -60 °F. It can also read propylene glycol concentration from 0 to 100%.

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