General lab & storage
Stability chamber
A cabinet or walk-in room that holds samples at a controlled temperature and relative humidity for months or years, so that the shelf life of a drug product can be established under ICH storage conditions.
- Pharmaceutical
- Biotech
- Medical devices
- Cosmetics
- Food & nutraceuticals
- Packaging
PREVENTIVE MAINTENANCE
Maintenance checklist
Daily
- Review temperature and RH records and alarms
- Check the water reservoir level
- Check the door closes and seals properly
Monthly
- Clean the interior and shelves
- Drain and clean the humidifier reservoir to prevent scale and microbial growth
- Check the condensate drain is not blocked
Six-monthly
- Calibrate control and monitoring sensors
- Test high and low alarms for temperature and RH
- Clean condenser coils and check fan operation
Annual / after change
- Preventive maintenance by a trained engineer (refrigerant, humidifier, door gaskets)
- Temperature and RH mapping, typically annually or after relocation, major repair or a change in load
SAFETY
Safety precautions
Before you work on the Stability chamber
- Walk-in chambers must have an inside door release and an alarm so nobody can be trapped.
- Hot humid air at 40 °C/75% RH can cause discomfort; limit time spent inside walk-in rooms.
- Isolate power before cleaning heaters, fans or the humidifier.
- Use only purified water in the humidifier to prevent scale and microbial growth.
In LimsPulse · Calibration Management
Keep every Stability chamber in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.