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.
Follow us | Email: Password: x Login | Register | My Cart (0) 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.
Checking Your Lymph Nodes. 1  1. Know where the lymph nodes are located. 2  2. Hold your first 3 fingers together. 3  3. Press your fingers against your forearm.  4. Place your fingers in your armpit and slide them down a few 1  inches. 5. Press in gently.  6. Check the lymph nodes on your neck and collarbone.