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.
Blood Pressure Readings on the Forearm. If there is no large blood pressure cuff available, or if the circumference of a person's arm exceeds the guidelines of the largest blood pressure cuff available, it is possible to take a blood pressure reading on a person's forearm (Singer, 1999).