Interlaboratory comparison is an effective means of external quality assurance and laboratory proficiency monitoring. Based on the start acceleration time data measured by six laboratories of a special purpose vehicle, this paper calculates the estimated values of mean value and standard deviation by using the method of med & NIQR, which is one of robust statistical methods, and evaluates the measurement results of each laboratory by using z-score. The results show that the |Z|-scores of the start acceleration time measured by each laboratory are less than 2, and the comparison results are satisfactory.
start acceleration time
robust statistical method