Intermediate check of electronic balances according to National Association of Testing Authorities, Australia (NATA) method

Abstract

This article aimed to present the comparison of the various intermediate check methods for the electronic balance and showed the example of the procedure based on the guideline provided by the National Association of Testing Authorities, Australia (NATA). The process included two specific checks which cover both the single point check for accuracy performance and the repeatability check for precision performance. The intermediate check results were then compared with the calibration results of the electronic balance to ensure confidence in the calibration status and confirm that the electronic balance continues to operate reliably and accurately. The intermediate check of the electronic balance with a maximum capacity of 500 g with readability of 0.0001 g was conducted by using a calibrated 500 g weight. The results of both checks showed that the electronic balance’s performance still met the specified criteria.