Calibration Laboratories
ISO/IEC 17025
Calibration laboratories establish measurement confidence by determining the relationship between measurement standards and instruments or systems. GTAF accreditation evaluates technical competence, measurement capability, traceability and the reliability of calibration results within the defined scope.
Competence, impartiality and confidence
GTAF’s accreditation approach is designed to provide a structured, evidence-based evaluation of organizations performing conformity assessment activities. The emphasis is on technical competence, impartiality, consistent processes and confidence in results or certification decisions.
Measurement capability
Appropriate facilities, equipment, environmental controls and competent personnel.
Metrological traceability
Suitable traceability arrangements and reference standards appropriate to the calibration activity.
Uncertainty evaluation
Sound methods for estimating and reporting measurement uncertainty where required.
Reliable certificates
Controlled calibration records, results, statements and reporting arrangements.
Define the scope with precision
The accreditation scope should clearly describe the activities, sectors, methods, schemes or technical fields for which competence is demonstrated.
- Dimensional calibration
- Mass and force
- Temperature and humidity
- Electrical and electronic measurements
- Pressure, flow and other measurement fields
Evidence that supports reliable outcomes
Assessment considers the organization’s documented arrangements and their effective implementation. Depending on the programme and scope, evidence may include:
- Competent personnel and defined responsibilities
- Controlled procedures, records and technical methods
- Suitable facilities, equipment and resources
- Impartiality and confidentiality controls
- Quality assurance, monitoring and continual improvement
- Effective handling of complaints, appeals or feedback where applicable
A clear path from application to surveillance
The detailed sequence is tailored to the programme and requested scope, while maintaining a consistent accreditation decision framework.
Application
Application and scope definition
Technical resource
Technical resource and capability review
Assessment
Assessment and witnessing of calibration activities
Corrective action verification
Corrective action verification
Accreditation decision
Accreditation decision and surveillance
Frequently asked questions
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Review the applicable requirements and submit your accreditation enquiry or application to begin the process.