Rheumatoid factor (RF) is a blood test that measures the amount of the RF antibody in the blood.
Weight ranges from about 7 to 12 kilograms (15 to 26 lb) in females, and from 9 to 18 kilograms (20 to 40 lb) in males.[4] Where does a serval live? The Serval lives in Africa.
Add plate arm and leg armour and the full harness for a late Fourteenth Century knight would be around 27 kilos or 60 lbs. A modern foot soldier in Afghanistan carries an average combat load of 28.3 kilos or 63 pounds, making a Fourteenth Century knight's combat load equivalent to that of a modern solider.