The uncertainty analysis report should also include an error equation or model for each measured. quantity. The error equation or model should provide an algebraic expression that defines the. total error in the value of the quantity in terms of all relevant measurement process errors. In the.
There are different methods used to measure surface area and each method can yield different results. Most methods are based on the isothermal adsorption of nitrogen. Either a single point or multipoint method is used to calculate the surface area.he total to determine the method used to determine surface area, Table 1, showed that six of the respondents used a single point surface area of a catalyst can be measured by either a multipoint or single point technique.
The surface area of a figure is the sum of the area of all surfaces of a figure. Surface Area is often abbreviated S.A. The surface area of a prism or cylinder is the lateral area plus the area of each base. Since the bases for a prism or cylinder are congruent, this is often expressed as twice the area of the base. The surface area of a pyramid or cone is the lateral area plus the area of the single base.