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What is the diameter measurement called French?
AnswerThe French catheter scale, also known as French gauge or Charriere (Ch) after the creator of the measurement scale, is commonly used in describing the diameter of medical devices/tubing. It was developed in the 1800's by a French surgical instruments maker, Joseph-Frederic-Benoit Charriere, to describe the circumference of medical tubing. The idea is that a non-circular tube will fit into the same incision or blood vessel as a round one. Therefore French size = 2*pi*r (where r is the radius in mm). Usually French size is considered to be 3 times the diameter in millimeters or 1Fr = 1/3mm.
What is the abbreviation for the French measurement?
The abbreviation for the french measurement is "verge".
What is the abbreviation for number in French?
Numéro ( actually a word borrowed from Italian) is abbreviated No.
Where did the metric system originated?
The French originated the metric system of measurement (now called the International System of Units and abbreviated SI, pronounced ess-eye). ... Most historians agree that Gabriel Mouton, the vicar of St. Paul's Church in Lyons, France, is the “founding father” of the metric system. He proposed a decimal system...
What are the two letters SI abbreviated for?
SI is from the French Système international d'unités, which means International System of Measurements. - Wikipedia
