Author Archives: Khanh Nguyen
IATF 16949 Calibration Requirements: Laboratory Scope, Records, and MSA
TL;DR: IATF 16949 is prescriptive where ISO 9001 is general. Externally calibrated equipment must come...
Calibration Requirements for Medical Devices: ISO 13485 and FDA 21 CFR 820.72
TL;DR: Medical device calibration answers to two nearly identical clauses, ISO 13485 clause 7.6 and...
In-House vs Outsourced Calibration: The Real Break-Even Math
TL;DR: In-house calibration pays off only at volume, typically several hundred same-discipline instruments, because the...
AS9100 Calibration Requirements: What Aerospace Audits Check Beyond ISO 9001
TL;DR: AS9100 uses the same clause as ISO 9001, 7.1.5, but aerospace audits go deeper...
How to Budget for Calibration: The Fleet Cost Planning Guide
TL;DR: Budget calibration from the fleet up: count the real inventory, price by instrument class...
How to Build a Calibration Recall System That Never Misses a Due Date
TL;DR: A calibration recall system needs six components: a master instrument list, unique IDs and...
Calibration Requirements for ISO 9001: Clause 7.1.5 and the 6 Things Auditors Check
TL;DR: ISO 9001 clause 7.1.5 requires that measuring instruments be suitable, maintained, traceable where required,...
Infrared Thermometer Calibration: Emissivity, Blackbodies, and the Size-of-Source Effect
How infrared thermometer calibration works: emissivity, blackbody sources, size-of-source effect, D:S ratio, calibration points, and...
Network Analyzer Calibration Guide: Instrument Cal vs User Cal, Cost, and How Often
A network analyzer calibration has two distinct meanings: laboratory calibration of the instrument itself and...
Power Supply Calibration Guide: What’s Checked, Cost, and How Often
TL;DR: Power supply calibration verifies voltage and current setting accuracy, readback accuracy, ripple and noise,...