What is a calibration certificate?
A calibration certificate is an official document that confirms an instrument has been tested and calibrated against recognized reference standards. It provides detailed information about the instrument’s accuracy, measurement deviations, and calibration results.
In India, calibration certificates are typically issued in accordance with guidelines from the National Accreditation Board for Testing and Calibration Laboratories (NABL) and internationally accepted standards such as ISO/IEC 17025.
A typical calibration certificate includes:
- Instrument details (make, model, serial number)
- Calibration date and next due date
- Reference standards used
- Measurement results and deviations
- Environmental conditions during calibration
- Traceability information
- Authorized signatory and certification details
Calibration certificates are essential for audits, regulatory compliance, quality assurance, and maintaining reliable measurement accuracy in industrial and safety-critical applications.