A quick and accurate way to measure the glycol concentration in a HVAC or mechanical system is through a hand-held refractometer. Here are a few do’s and don’ts for the proper use of this instrument.
- Be sure the instrument is clean and dry before use
- Use enough fluid to cover the entire measuring prism
- Point the instrument at a light source when taking the reading
- Read from the appropriate side of the scale (ethylene or propylene glycol
- Clean the instrument after each use
- Do not touch the measurement prism or bottom of the sample cover
- Do not get fluid on the eyepiece of the instrument
- Do not open the sample cover when taking a reading
- Do not test a sample that is too hot or too cold (between 70° and 85°F is best)
- Do not drop the instrument or subject it to hard knocks
For more information on Dynalene glycols please click Propylene Glycol / Ethylene Glycol / BioGlycol.