In a laboratory, various devices and facilities are used, and their maintenance and inspection are legally required to ensure that the equipment is safe and functions properly. Legal requirements vary by country and specific regulations but generally cover the following areas:

1. Electrical Equipment

Electrical Safety Tests: These tests must be conducted regularly to ensure the electrical safety of the devices. In Germany, DGUV Regulation 3 (formerly BGV A3) is the standard for testing electrical installations and equipment.

2. Laboratory and Safety Equipment

Fume Hoods and Safety Cabinets: These must be inspected regularly to ensure they function properly and prevent hazardous fumes or substances from escaping. Fume hood testing is regulated under DIN EN 14175. Emergency Showers and Eyewash Stations: These must be functional and easily accessible at all times. Regular maintenance is mandated by various standards and regulations, such as DIN 12899 for eyewash stations.

3. Measuring and Testing Devices

Calibration and Verification: Measuring devices must be calibrated and, if necessary, verified regularly to ensure accurate measurements. The intervals and requirements vary depending on the device and its application.

4. Pressure Vessels and Autoclaves

Pressure Equipment Testing: Pressure vessels and autoclaves must be inspected regularly by an approved authority. Relevant regulations are found in the Industrial Safety Regulation (BetrSichV) and the Pressure Equipment Directive (DGRL).

5. Safety and Fire Protection Equipment

Fire Extinguishers: These must be inspected and serviced regularly. According to the Workplace Regulation (ArbStättV) in Germany, fire extinguishers must be checked at least every two years. Smoke and Gas Detectors: These devices must also be inspected and maintained regularly to function correctly in an emergency.

6. Chemical Storage

Hazardous Substance Storage: The storage of chemicals is subject to strict regulations, such as the Hazardous Substances Regulation (GefStoffV). Safety cabinets for storing hazardous chemicals must be regularly maintained and inspected.

7. Biological Safety Equipment

Biological Safety Cabinets: These must be serviced and inspected regularly to ensure protection against biological hazards. In Germany, this is regulated by DIN EN 12469.

8. Ventilation Systems

HVAC Systems: Heating, ventilation, and air conditioning systems must be maintained regularly to ensure a safe and healthy working environment, including filter inspections and airflow checks.

9. Occupational Health and Personal Protective Equipment (PPE)

PPE Testing: Personal protective equipment such as gloves, safety glasses, and respiratory protection must be regularly inspected and replaced to ensure their protective effectiveness.

The documentation of performed maintenance and inspection measures is crucial to demonstrate compliance with legal regulations. In many cases, these inspections must be carried out by qualified personnel or authorized testing bodies.