Calibration Certificate

A Calibration Certificate is a common quality certification document in foreign trade, issued by the manufacturer or a third-party metrology institution, used to prove that the measurement parameters (such as accuracy, error, sensitivity, etc.) of an instrument, device, or tool have been calibrated with standard instruments and comply with specific standards or customer requirements. It is often used in scenarios such as exporting precision instruments, laboratory equipment, and electronic measurement tools, and serves as an important basis for customs in importing countries, customer acceptance, or regulatory compliance. Note: A Calibration Certificate differs from a Verification Certificate; the former only provides calibration data and uncertainty without judging pass/fail, while the latter is legally binding and determines conformity. Additionally, a Calibration Certificate usually has a validity period and must be traceable to national or international standards (such as NIST, PTB). If a foreign trade contract or letter of credit requires a Calibration Certificate, the qualification of the calibration institution (such as CNAS, ISO 17025), calibration points, uncertainty, and language version should be clearly specified to avoid refusal of payment or return of goods due to non-compliant certificates.