1.1 These test methods cover the determination of carbon, sulfur, nitrogen, and oxygen, in steel, iron, nickel, and cobalt alloys having chemical compositions within the following limits: Element Mass Fraction Range, % Aluminum 0.001 to 18.00 Antimony 0.002 to 0.03 Arsenic 0.0005 to 0.10 Beryllium 0.001 to 0.05 Bismuth 0.001 to 0.50