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The mixing of emulsions has always been fraught with problems, often involving guesswork and/or hit and miss methods of gauging the correct amount of concentrate. Incorrect emulsion strengths can cause numerous problems with the product in use. Bacteria and corrosion problems are common examples of weak dilutions but more serious results of poor housekeeping are skin and environmental problems caused by over strength emulsions.
A simple method of monitoring the strength of an emulsion is with a refractometer.
A refractometer is a piece of optical equipment that accurately measures the balance of water to concentrate, as a percentage, to give the dilution in use. Correctly used it is an invaluable aid to the correct, efficient and economical use of cutting fluids.
The 0-18 range model offers the optimum between ease of use and accuracy but also available in 0-10, 0–32 and anti-freeze/battery acid scales. |