In calibration terminology, which term denotes a reference instrument used to ensure dimensional accuracy?

In calibration terminology, which term denotes a reference instrument used to ensure dimensional accuracy?

• A. Master gauge
• B. Masters
• C. Standard
• D. Calibrator

Answer: (B)

The reference instrument used to ensure dimensional accuracy is a master (often referred to as masters when talking about the set of reference standards). In calibration, masters are the highly accurate artifacts with known, traceable dimensions that serve as the definitive benchmark against which all working gauges and measuring tools are checked. By comparing a tool or instrument to the master, you can determine if it is within tolerance or if it needs calibration or adjustment. This makes the term inherently specific to the authoritative reference standard, more so than a general term like standard or tools used for calibration. The plural form signals a collection of these reference artifacts used across various sizes or types of instruments.

The reference instrument used to ensure dimensional accuracy is a master (often referred to as masters when talking about the set of reference standards). In calibration, masters are the highly accurate artifacts with known, traceable dimensions that serve as the definitive benchmark against which all working gauges and measuring tools are checked. By comparing a tool or instrument to the master, you can determine if it is within tolerance or if it needs calibration or adjustment. This makes the term inherently specific to the authoritative reference standard, more so than a general term like standard or tools used for calibration. The plural form signals a collection of these reference artifacts used across various sizes or types of instruments.