What is involved in a "calibration check" of the Intoxilyzer 9000?

A "calibration check" is a critical process involved in ensuring the accuracy and reliability of the Intoxilyzer 9000. During this procedure, the device is tested with a control sample of a known alcohol concentration. This check verifies that the device is measuring blood alcohol content (BAC) correctly and consistently for future tests. Calibration ensures that any results obtained from an individual's breath sample are valid and can be trusted in legal or enforcement situations.

The accuracy of the device is paramount, as it is often used in situations that can lead to significant legal consequences. Therefore, using a control sample with a known result allows the operator to confirm that the readings produced by the Intoxilyzer 9000 are within acceptable limits and that the device is functioning properly. This process helps maintain the integrity of the data collected during breath alcohol testing.

In contrast, replacing the device battery before each use is more about maintenance than calibration, and does not directly assess the measurement accuracy. Collecting breath samples from sober individuals is not pertinent to calibration checks since it doesn't involve verifying the device's response to known alcohol levels. Using a phone app to check the device status does not equate to a calibration check as it does not provide a method to evaluate the actual measurement