Introduction to National Accreditation Board for Testing and Calibration Laboratories
- NABL is an autonomous body under India’s Department of Science and Technology.
- Provides accreditation to laboratories in accordance with ISO/IEC 17025 and ISO 15189.
Principle of National Accreditation Board for Testing and Calibration Laboratories
- NABL operates impartially, objectively, and transparently.
- Accreditation criteria are based on international standards, ensuring high competence, reliability, and accuracy in accredited labs.
Need for NABL Accreditation
- Global Recognition: NABL accreditation is internationally accepted, making test/calibration reports globally recognized—vital for businesses engaged in international trade.
- Reliability: Ensures that laboratory test/calibration results are accurate and dependable.
- Regulatory Requirement: Certain industries mandate NABL accreditation for testing or calibration.
- Competence Assurance: Demonstrates technical competence, giving stakeholders confidence in the lab’s results.
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Accreditation Scope
- Testing Laboratories: Chemical, biological, mechanical, etc.
- Calibration Laboratories: Calibration of measuring instruments.
- Medical Laboratories: Accredited under ISO 15189.
Benefits of NABL Accreditation:
- Recognition of technical competence.
- International acceptance of test results.
- Enhanced customer confidence.
- Access to global markets.
Accreditation Process

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Application
- Submission of application and quality manual.
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Assessment
- Document review and on-site assessment by NABL assessors.
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Corrective Actions
- Address any non-conformities identified.
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Accreditation Decision
- Accreditation granted upon satisfactory compliance.
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Surveillance
- Regular assessments to ensure ongoing compliance.
