The accuracy of the infrared carbon-sulfur analyzer is generally good or bad. The concept of linearity and linearity is defined as that the manufacturer of infrared carbon-sulfur analyzers is generally in the determined category from low to high data, and the formula for factory calibration and high smoothness is a straight line. The direct influence of linearity on the high-frequency accuracy of the analysis, infrared carbon-sulfur analyzer is used in the statutory reference value, from the reference of the linear function, if the linear value can not be measured sample is not possible. The quality of the linearity can be chosen in several different categories within the optional range of indicators. Measurement of the amount of steel and indicators calibrated to high levels of infrared carbon-sulfur analyzer, determination of measured steel, steel indicators corresponding to low levels of measurement The value should be in the error category.

According to the determination of the infrared carbon-sulfur analyzer, the relative standard deviation of the infrared carbon-sulfur instrument is determined. The method is to select 7 consecutive samples of the same type of sample, which is regarded as the formula of the infrared carbon-sulfur analyzer. This is also the continuous measurement data. The reaction of the infrared carbon-sulfur analyzer is stable, usually infrared carbon-sulfur analyzer can satisfy c ≤ 0.5%, under ≤ 1.5%.

Determine whether infrared carbon-sulfur analyzer is good or bad based on repeatability. Reproducibility means that the long-term stability of the same sample at different time intervals is good or bad. This time may be one hour, one day or one week or even one month. And the bad reflection of the overall performance of infrared carbon-sulfur analyzer is usually a good infrared carbon-sulfur analyzer stability, and at least one day will not change the data.