is a trade name for a class of chemicals (known as Chlorofluorocarbons or CFC's) used as a refrigerant in air conditioning systems. Freon is a gas at room temperature and a liquid when cooled or compressed. Freon gas is colorless, non-flammable and relatively odorless. Some Freons have an ether-like odor.
How should I take my forearm circumference measurement? In order to take your forearm circumference measurement, you should tense your arm muscle and measure around the thickest part of your forearm, as pictured.
To Measure Correctly. 1  Find relevant sites on the right side of the body, before measuring. 2  Lift a skin-fold firmly with thumb and index finger of left hand. 3  Lift fold one-centimeter above the intended measuring site.  Place jaws of the caliper perpendicular to the fold, one centre meter below the thumb and index finger.