Feels like a chicken and egg senario. Let’s say I get my torque wrench from work sent off to be calibrated, and that’s calibrated with something itself needs to be calibrated, and so on and so fourth. How’s that figured out?
In: 430
The key to calibration is traceability. If I buy a calibrated tool, the company that calibrated it used their local standard. In the paper work they provide me, they include provenance showing when their local standard was last calibrated, and what it was calibrated to. In the US, these chains of provenance typically lead to a standard approved by the National Institute of Standards and Technology, a part of the US government.
Feels like a chicken and egg senario. Let’s say I get my torque wrench from work sent off to be calibrated, and that’s calibrated with something itself needs to be calibrated, and so on and so fourth. How’s that figured out?
In: 430
The key to calibration is traceability. If I buy a calibrated tool, the company that calibrated it used their local standard. In the paper work they provide me, they include provenance showing when their local standard was last calibrated, and what it was calibrated to. In the US, these chains of provenance typically lead to a standard approved by the National Institute of Standards and Technology, a part of the US government.
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