The Importance of Calibration of Laboratory Equipment in Research and Testing

The performance of modern laboratories is only as good as the equipment they use. Medical laboratories must ensure the accuracy and optimal functioning of their equipment for reliable healthcare. How can equipment be maintained in quality and functionality? Laboratory equipment calibration is a process of restoring the workings of various lab equipment so they perform their intended purpose well.

Conversely, uncalibrated equipment causes errors, distorted results, financial losses, and so on. Read the full article to learn the importance of laboratory equipment calibration and see a few examples to put things in perspective.

What is Calibration of Laboratory Equipment

Calibration adjusts a device or measuring instrument to ensure its readings fall within a specified tolerance. Calibration ensures more accurate measurements in your lab.

It involves comparing a lab equipment’s measurement to a standard. Organisations set acceptable accuracy levels and error percentages. Calibration often includes adjusting the instrument to meet these standards. The calibration of laboratory equipment varies depending on the type.

Instruments are sent to calibration experts, who provide a report showing the initial measurement errors and the improvements after calibration.

Importance of Calibration of Laboratory Equipment

Every laboratory using standardised equipment for testing, diagnosis, or research must ensure that the equipment is calibrated to serve its intended purpose. The role of calibration of laboratory equipment is given below.

Ensures the Functionality

The optimal functionality of lab equipment is the primary objective in any laboratory. Regular calibration of laboratory equipment is a step in that direction. Calibration uses various fittings, repairs, and adjustments in instrumentation to reset the optimal functionality.

Calibration also serves to recalibrate existing equipment to a different level of functionality within the capacity of the equipment.

Improves Lab Safety

Maintenance and calibration of laboratory equipment are crucial for maintaining compliance with safety standards and practices. Adherence to these rules is paramount, given the daily handling of hazardous chemicals, raw materials, and machinery.

Properly calibrated machines safeguard your staff from potential hazards. Failure to calibrate equipment, such as ovens and furnaces, can lead to overheating or even explosions. Property loss could lead to casualties. The resulting delays, property loss, repair costs, damages, and potential staff injuries requiring hospitalisation incur heavy costs, too.

Increases the Lifespan of Equipment

Every physical equipment is subject to degradation over time, either because of regular use or improper use. In later cases, the degradation could be rapid. Environmental conditions can also impact the lifespan. For example, uncontrolled temperatures can distort the material properties, causing errors in testing. Irregular temperatures can also cause bacteria and microbes to invade the equipment.

Similarly, conditions like humidity, storage spaces, the material of the equipment, and intensity of usage lead to equipment degradation.

Laboratory equipment calibration minimises damage by restoring the settings. This will prolong the equipment's life and improve its performance. Regular maintenance and calibration of laboratory equipment saves money in the long run.

Saves Money

Failure to calibrate equipment can result in inaccurate results, faulty products, and process delays, which can have significant financial implications for your operations. These costs are often higher than investing in proper calibration upfront.

With the calibration and maintenance of laboratory equipment, you can avoid unexpected expenses for maintenance, replacements, and errors. Additionally, it helps optimise the use of raw materials, reducing waste and improving overall efficiency in lab production.

Optimal Resource Use

Overused equipment often consumes more resources compared to those in condition. For example, medical lab equipment that works on electricity might start consuming more electricity due to work out of internal parts. Similarly, those depending on fossil fuels might consume more fuel due to worn out parts.

Laboratory equipment calibration reveals faults in the instruments and suggests replacing spare parts or buying new equipment. The resulting restoration in functionality causes optimal resource usage.

Industry Certification

Achieving industry certifications is paramount for laboratories to establish credibility in national and global markets. Certifications such as ISO/IEC 17025 serve as a validation of a lab's competence and ability to generate reliable results, while ISO 9001 certifies the quality of processes and solutions employed.

Obtaining and maintaining these prestigious certifications necessitates regular calibration of laboratory equipment. The industry certifications automatically ensure the reliability and accuracy of the equipment used.

To Avoid Legal Risks

The use of lab equipment that has become unusable could significantly distort outcomes. When NABL conducts reassessment tests, the use of such equipment and instruments could attract legal risks, such as penalising the lab, imposing a ban, or potential imprisonment for compromising the safety of patients.

Moreover, the healthcare industry, which is responsible for proving trustworthiness and reliability, can’t afford malfunctioning equipment. While it directly impacts diagnostic accuracy, it could lead to loss of lives, which is considered a crime.

Continuous Improvement

While maintenance and calibration of laboratory equipment ensure maximum functionality, they also help concerned labs stay updated with the latest trends. Regular calibration reveals the backwardness of processes and systems, if any while pointing out possible new technologies and tools.

When inviting NABL in India, the regulatory body ensures that the equipment meets the latest international standards in sophistication and usage. If not, it suggests that labs upgrade their equipment and tools, leading to continuous improvement of lab services.

Examples of Calibration of Medical Lab Equipment

Equipment	Type of Calibration
BP Apparatus	Manometer and Leak test
Defibrillator	Energy, ECG, Charging time and Electrical safety
ECG Machines	HV testing, Leakage Current test, Earth Bond, Resistance
Incubator Analyzer	Calibration of Fluke INCU-2 Calibration parameters Pressure, Flow rate, TIME, Temperature, RH, Airflow
Infusion Pump Analyzer	Calibration of Fluke IDA1-S, IDA4, IDA 5, IDA4 Plus, IDA5 Calibration parameters: Flow rate, Flow Volume, Pressure
O2 Analyzer	Calibration of Fluke Max O2
Patient Monitors	ECG, Spo2, NIBP, respiration, Electrical safety
Physiotherapy Equipment	Electrical safety
Syringe Pumps and Infusion Pumps	Flow, Occlusion, PCA Bolus, Volume, Electrical safety Test
Ventilator and Anesthesia Machine	Electrical safety and 21 Ventilator Parameters like Tidal volume, I: E Ratio, Rate, PEEP etc.

Conclusion

Given the role of equipment/instruments in laboratory testing, the need for maintenance and calibration of laboratory equipment can’t be overemphasised. Proper calibration ensures accurate and reliable results, prolongs equipment lifespan, and saves costs in the long run. It also contributes to optimal resource use, industry certifications, and legal compliance in laboratory services. It is essential for the smooth functioning of medical laboratories, ensuring the quality and reliability of healthcare services.