There is no fixed calibration interval for all measuring instruments. The frequency depends on usage, accuracy requirement, environment, and past performance of the instrument.
General Guideline
- Frequently used instruments → Every 3–6 months
- Normal use instruments → Every 6–12 months
- Rare or standby instruments → Before use or annually
- Master / critical instruments → Every 3–6 months
Why It Matters
Regular calibration ensures measurement accuracy, meets ISO requirements, reduces rejection, and maintains product quality.
Best practice: Decide calibration frequency based on risk, not just time.
ICS International Certification LLP helps organizations maintain reliable and traceable measurements through professional calibration services.
