Author Archives: Khanh Nguyen
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? Note on particle...
Ultrasonic Flaw Detector Calibration: Step-by-Step Guide
Ultrasonic Flaw Detector Calibration: Step-by-Step Guide For Non-Destructive Testing (NDT) professionals, quality managers, and field...
How Often Should You Calibrate a Handheld Particle Counter?
How Often Should You Calibrate a Handheld Particle Counter? Note on particle counters: This page...
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 to Calibrate a Handheld Particle Counter: ISO 17025 Guide
How to Calibrate a Handheld Particle Counter: ISO/IEC 17025 Step-by-Step Airborne particles can easily ruin...
pH Meter Calibration: What Slope and Offset Values Actually Pass
A pH meter calibration passes when the electrode slope falls within roughly 95-102% of the...
Keysight vs Rohde & Schwarz DC Power Supply
Keysight vs Rohde & Schwarz DC Power Supply: Which Brand Is Better? Lab managers and...