If a CALFAC is used for repair or calibration, the facility must be traceable to what standard?

If a CALFAC is used for repair or calibration, the facility must be traceable to what standard?

• A. National standard
• B. International standard
• C. Military standard
• D. Industry standard

Answer: (A)

Traceability of measurements means there is an unbroken, documented path back to a reference standard. For a CALFAC used in repair or calibration, that reference must be the national standard because national metrology institutes maintain the definitive reference quantities used to realize the units. By calibrating through a chain that connects the device under test to the national standard, with stated uncertainties at each step, you ensure readings are accurate and comparable wherever they’re made. International standards matter for broader compatibility, but the formal anchor for traceability is the national standard.

Traceability of measurements means there is an unbroken, documented path back to a reference standard. For a CALFAC used in repair or calibration, that reference must be the national standard because national metrology institutes maintain the definitive reference quantities used to realize the units. By calibrating through a chain that connects the device under test to the national standard, with stated uncertainties at each step, you ensure readings are accurate and comparable wherever they’re made. International standards matter for broader compatibility, but the formal anchor for traceability is the national standard.