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METTLER TOLEDO's unique Accuracy Calibration Certificate (ACC) comes with detailed instructions for calibrating your thermogravimetric (TGA) microbalance according to your own weighing processes and tolerances. Calibration of microbalances is critical since weighing devices exhibit changes in performance over time with general use. ACC calibration quantifies the performance of your micro or ultra-microbalance and determines the measurement uncertainty over its entire weighing range. The certificate also includes the annex Minimum Weight determination to ensure consistently accurate weighing results (more details in UserCom 41).
ACC service is provided for up to eight TGA/DSC or TGA balance types (1 g or 5 g reduced to 2 g capacity). Tests can be performed manually or automatically using the sample robot.
The certificate provides:
- Error of indication tests
- Repeatability test
- As found and as left results available
- Enhanced graphical elements
- Measurement uncertainty (calculation, absolute, relative)
- Uncertainty in use formula
- Minimum weight determination (as found)
- Minimum weight for various safety factors
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