Requirements for the use of measuring instruments for fully automatic sterilizers

### Fully Automatic Retort: Measurement Instrument Requirements

1. **Indicator Thermometer**:

- Use a rigorously calibrated mercury thermometer with clear, unbroken mercury columns.

- Ensure annual inspections to maintain accuracy.

2. **Automatic Temperature and Time Recorder**:

- Time settings must align with a calibrated clock.

- Temperature readings should match the mercury thermometer and must not exceed it.

3. **Pressure Gauge**:

- Equip the retort with a pressure gauge of at least 102mm diameter.

- Calibrate before installation and annually to ensure precision.

These specifications ensure reliable sterilization and consistent product quality.