Author Archives: Khanh Nguyen
Subcontracted Calibration Under ISO/IEC 17025: Is Your Certificate Still Accredited?
A subcontracted calibration can still be accredited, but only for parameters covered by an accredited...
How to Use an Ultrasonic Flaw Detector?
How to Use an Ultrasonic Flaw Detector: Setup, Operation & Best Practices For Non-Destructive Testing...
Renting vs Buying a Handheld Particle Counter: What’s Best?
Rent vs Buy Handheld Particle Counter: What Makes Sense for Your Lab? Contamination control demands...
Ultrasonic Flaw Detector Calibration: ISO/IEC 17025 Guide
Ultrasonic Flaw Detector Calibration: ISO/IEC 17025 Step-by-Step Guide For Non-Destructive Testing (NDT) professionals, quality managers,...
How Often Should You Calibrate a Handheld Particle Counter?
How Often Should You Calibrate a Handheld Particle Counter? In controlled environments, airborne contamination poses...
USP <41> Minimum Weight: How to Calculate It on an Analytical Balance
USP minimum weight is calculated, not specified: 2s divided by 0.001 from a 10-weighing repeatability...
Does a GPS-Disciplined Oscillator Need Calibration? GPS Lock vs ISO/IEC 17025 Traceability
GPS lock makes a GPSDO accurate, but not traceable. What ISO/IEC 17025 assessors require: the...
Dry-Block vs Liquid Bath: Which Temperature Calibrator Meets Your Uncertainty Target?
Axial inhomogeneity inside the block, not the display, dominates dry-block uncertainty. A worked EURAMET cg-13...
How often calibrate Eddy Current Tester?
Eddy Current Tester Calibration: Intervals, Accuracy & Compliance Guide For Non-Destructive Testing (NDT) technicians and...
How to Use an Eddy Current Tester?
How to Use an Eddy Current Tester: Setup, Operation & Best Practices For QA managers...