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.
A more accurate way to calculate frame size is to follow these 3 steps: 1  Extend your arm in front of you bending your elbow at a 90-degree angle. Your forearm should be parallel to your body. 2  With straight fingers, turn the inside of your wrist towards your body.