ISO 8655 was updated in 2022 and expanded again in 2024 with the addition of Part 10. One of the most important changes is the increased emphasis on mandatory routine testing between calibrations. The updated standards recognize that annual calibration alone is not enough to ensure reliable pipette performance.
Mandatory Routine Testing Is Now a Major Focus
One of the biggest changes to ISO 8655 is the recognition that pipettes should be routinely tested between scheduled calibrations.
Routine testing helps laboratories:
- identify leaks or wear
- detect performance drift
- improve measurement reliability
- support quality systems
- reduce the risk of inaccurate results
These checks are intended to complement professional calibration, not replace it.
Pipettes and Tips Are Now Considered a System
The revised standard recognizes that pipettes and tips work together as a complete system. Because tips can influence performance, calibration results apply to the specific pipette and tip combination used during testing.
Updated Testing and Balance Requirements
ISO 8655 introduced changes to testing procedures and increased balance requirements for low-volume pipettes. These updates help improve measurement accuracy and consistency.
Greater Emphasis on Traceability and Documentation
The updated standard also places more importance on:
- environmental conditions
- measurement uncertainty
- traceability
- documentation
These requirements help support ISO 17025 quality systems and audit readiness.
New ISO 8655-10:2024 Focuses on Proper Technique
Part 10, introduced in 2024, recognizes that accurate pipetting depends not only on calibration, but also on proper use, operator technique, and routine verification practices.
Supporting Reliable Pipette Performance
Routine testing and professional calibration work together to maintain confidence in laboratory measurements.
The technicians at The Lab People provide professional pipette calibration services designed to help laboratories maintain accuracy, traceability, and reliable results. Contact us and The Scale People today for your lab and calibration needs.
Bringing It All Together
The latest ISO 8655 updates reinforce an important message: accurate pipetting depends on more than annual calibration. Mandatory routine testing, proper technique, documentation, and regular calibration all play important roles in producing reliable laboratory results.