What is the meaning of SOP? What is the role in particle testing?

SOP is an abbreviation of Standard Operation Program. It stands for "standardized operation program" and is commonly used in instruments that implement automatic control. When testing a fixed type of sample, the test experience can be fixed as a standard procedure. Start this procedure, sample dispersion, test record, data analysis, report printing, system cleaning, and realize the one-button operation of the whole test process. This not only reduces the labor intensity of operators, but more importantly, reduces the interference of human factors on test results and improves the comparability of test results.