What is the difference between Calibration and Validation

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Calibration is a demonstration that, a particular Instrument or device produces results within specified limits by comparisons with those produced by a reference or traceable standard over an appropriate range of measurements.

Whereas Validation is a documented program that provides a high degree of assurance that a specific process, method or system consistently produces a result meeting pre-determined acceptance criteria.

In calibration performance of an instrument or device is comparing against a reference standard. But invalidation such reference standard is not using.

Calibration ensures that instrument or measuring devices producing accurate results. Whereas validation demonstrates that a process, equipment, method or system produces consistent results (in other words, it ensures that uniforms batches are produced).                                                 

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