BMI is calculated by taking a person's weight and dividing by their height squared. For instance, if your height is 1.82 meters, the divisor of the calculation will be (1.82 * 1.82) = 3.3124. If your weight is 70.5 kilograms, then your BMI is 21.3 (70.5 / 3.3124) (see calculator links below).
Flammable and combustible liquids themselves do not burn. It is the mixture of their vapours and air that burns. Gasoline, with a flashpoint of -40Â°C (-40Â°F), is a flammable liquid. Even at temperatures as low as -40Â°C (-40Â°F), it gives off enough vapour to form a burnable mixture in air. Phenol is a combustible liquid.
Examples include butane, acetylene, methane and hydrogen. Flammable liquids are identified as liquids that have a flashpoint (minimum temperature needed for the liquid to produce a vapor with enough of a concentration to ignite) below 100 degrees Fahrenheit (F). There is an exception to this definition. If any of the components of the mixture have flashpoints of 100 deg. F or higher, then the material is classified as combustible rather than flammable. Another way to identify flammable liquids is by class. It is important to remember that with flammable liquids that it is the vapor coming off of the liquid that will ignite and burn, not necessarily the liquid itself.