Organization , perfomance and evaluation of the measurement or tests on the same or similar items within the same Laboratories in accordance with predetermined condition.
In the context of ISO/IEC 17025, the Intralaboratory Comparison sub-clause typically states that:
“The laboratory shall conduct intralaboratory comparisons to:
- Ensure the consistency and reliability of its test and calibration results
- Evaluate the performance of its measurement methods and equipment
- Identify and correct any bias or variation in its results
- Ensure that results are consistent across different personnel, equipment, and locations
- Maintain and improve its technical competence
The laboratory shall:
- Conduct intralaboratory comparisons regularly, as defined in its quality management system
- Use the results of intralaboratory comparisons to identify and correct any issues or deviations
- Document and record the results of intralaboratory comparisons, including any corrective actions taken
- Ensure that personnel involved in intralaboratory comparisons are trained and competent
- Use intralaboratory comparisons to evaluate and improve its quality management system”
This sub-clause aims to ensure that laboratories:
- Ensure consistency and reliability of test and calibration results
- Evaluate performance of measurement methods and equipment
- Identify and correct bias or variation in results
- Ensure results are consistent across different personnel, equipment, and locations
- Maintain and improve technical competence
By including this sub-clause, laboratories demonstrate their commitment to:
- Quality assurance
- Technical competence
- Continuous improvement
- Consistency and reliability of test results
- Compliance with ISO/IEC 17025 requirements
This sub-clause is essential to ensure that laboratories maintain the highest standards of quality and technical competence, and that their test and calibration results are consistent, reliable, and accurate.
More: 3.5.Proficiency Testing ( Sub clause of terms and definitions)