Natural Gas Reforming/Gasification: Synthesis gas, a mixture of hydrogen, carbon monoxide, and a small amount of carbon dioxide, is created by reacting natural gas with high-temperature steam. The carbon monoxide is reacted with water to produce additional hydrogen.
Measurement scales are used to categorize and/or quantify variables. This lesson describes the four scales of measurement that are commonly used in statistical analysis: nominal, ordinal, interval, and ratio scales. Each scale of measurement satisfies one or more of the following properties of measurement.
Pan scales are a widely used type of analogue or digital scale. They are easy to transport and are often used for weighing specimens in the field. They are a sturdy type of scale and will stand up to rough handling. Analogue pan scales are fairly accurate and are not susceptible to moisture damage.