General lab & storage
Water bath
A tank of water held at a constant set temperature, used to warm, incubate or melt samples gently and evenly.
- Pharmaceutical
- Microbiology
- Food & dairy
- Clinical laboratories
- Research

Follow your site SOP
This is a typical operating sequence for learning. Your instrument model and approved SOP take precedence.
STAGE 1
Start-up
- 1Check the calibration label is in date.
- 2Fill with purified water to above the heater and to a level that covers the sample liquid level.
- 3Set the temperature and allow the bath to stabilise; confirm with a calibrated thermometer if the test is temperature-critical.
- Never switch on the heater without enough water.
STAGE 2
Use
- 1Place flasks or tubes in racks so the bath water is above the sample level but below the neck.
- 2Keep the lid closed as much as possible.
- 3Record the temperature at the start and end of temperature-critical tests.
- Do not let water enter open containers.
STAGE 3
Shutdown
- 1Switch off and allow to cool.
- 2Drain and dry the tank if not used daily.
In LimsPulse · Calibration Management
Keep every Water bath in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.