1. Servomex Filter Check – Verify that the filter inspection record is current for your Servomex oxygen analyzer. The frequency of inspection is listed in the operator’s manual for your instrument.

2. Calibrations – Be sure that your thermometers, vacuum gauges and high pressure gauges are calibrated according to your SOPs.
3. Daily Vacuum Gauge Verification – Be sure you have a record that your vacuum gauge needles read zero at atmospheric pressure. This record should be made each day the vacuum gauge is used.