Physical testing
Refractometer
Measures the refractive index of a liquid or melted solid, usually at 20 °C and 589 nm. It is a quick identity and purity test for oils, solvents and syrups.
- Pharmaceutical
- Food & beverage
- Flavours & fragrances
- Chemicals
- Petrochemicals
PREVENTIVE MAINTENANCE
Maintenance checklist
Daily / each use
- Check with purified water at 20 °C (expected about 1.3330)
- Clean the prism before and after each sample
Monthly
- Inspect the prism and its seal for scratches or damage
- Check the temperature display against a calibrated probe if your SOP requires
Six-monthly / annual
- Calibrate with water and a certified refractive index reference liquid
- Preventive maintenance by the service engineer
SAFETY
Safety precautions
Before you work on the Refractometer
- Handle flammable solvents used for cleaning away from ignition sources.
- Wear gloves when handling oils, solvents or irritant samples.
- Do not look directly into the light source.
In LimsPulse · Calibration Management
Keep every Refractometer in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.