Author Archives: Khanh Nguyen
In-Lab vs On-Site Calibration
By Khanh Nguyen, Marketing Manager·Reviewed by Techmaster metrology team·2026-07-11 Quick answer: In-lab calibration sends instruments...
Measurement Uncertainty and Traceability Explained
By Khanh Nguyen, Marketing Manager·Reviewed by Techmaster metrology team·2026-07-11 Quick answer: Measurement traceability is the...
Types of Calipers and How to Choose One
By Khanh Nguyen, Marketing Manager·Reviewed by Techmaster metrology team·2026-07-13 Quick answer: The main types of...
Calibration Lab Environmental Conditions: Temperature & Humidity Control (ISO/IEC 17025)
Why ISO/IEC 17025 calibration labs control temperature and humidity: the 20 °C reference, thermal expansion...
Allan Deviation Explained: Measuring Oscillator & Frequency Stability
Allan deviation (ADEV) is the standard metric for oscillator and frequency-standard stability. Learn how to...
How to Build a Measurement Uncertainty Budget (ISO/IEC 17025)
A step-by-step guide to building a measurement uncertainty budget for ISO/IEC 17025 calibration: Type A...
Calibration vs Gage R&R (MSA): What’s the Difference and Do You Need Both?
Calibration verifies a gage reads true against a traceable standard; Gage R&R (MSA) measures how...
Thermocouple Calibration: Comparison vs Fixed-Point Methods
The two thermocouple calibration methods—comparison and fixed-point—explained: which to specify, Type K drift, IEC 60584...
As-Found vs As-Left Calibration Data: A Quality Manager’s Guide
As-found data is your instrument's condition on arrival; as-left is after adjustment. As-found drives reverse-traceability...
Best Calibration Service Providers in the US (2026 Comparison)
Choosing among the best calibration service providers in the US comes down to three questions:...