Imagine a 200-liter environmental test chamber running a humidity profile at 40°C and 90% relative humidity (RH). The controller computes a dew point of 37.9°C. If the measured dew point is off by ju...

Put a batch of lithium-ion cells into a chamber, program 85°C and 85% RH, and walk away for 500 hours. Whether that test produces trustworthy data depends less on the nameplate and more on how precis...

If you are selecting an environmental test chamber, chamber temperature is the specification that determines whether your test gives you useful data or misleading data. A chamber that cannot hold its...

If you have a temperature reading and a dew point reading, you can already compute relative humidity without any additional instrument. The principle is straightforward: the dew point tells you how m...

When you place a lithium-ion cell into a chamber and ramp it toward 150 °C, the reading on the screen can turn from a routine validation curve into a safety decision in less than a minute. Battery sa...

You are standing in front of a stability chamber, and the controller reads 25.0 °C with a dew point of 15.0 °C. The recipe calls for 50% RH at that temperature. Is the chamber performing as expected?...

Condensation forming on the inside of a temperature and humidity test chamber window is not a random event. For a reliability engineer running a cyclic humidity test at 40 °C and 60% RH, the dew poin...

Why ASTM B117 Remains the Reference Standard for Salt Fog Exposure ASTM B117 describes a controlled salt fog environment used to evaluate how metallic parts, coatings, and finished assemblies respond...

Why Automotive Electronics Demand Standardized Environmental Validation Modern vehicles carry dozens of electronic control units, sensors, and connectors that must function reliably across extreme sw...

Why Electrical Integrity Checks Decide Whether Semiconductors and PCBs Survive the Field A single leakage path across an insulation barrier or a shifted impedance value on a differential trace rarely...

Two Testing Philosophies, One Reliability Question Electronic assemblies rarely fail because a single extreme temperature was too hot or too cold. They fail because a material expanded, contracted, ...

Why Environmental Stress Screening Still Defines Product Reliability Programs Environmental Stress Screening, commonly shortened to ESS, is the practice of exposing a product to controlled thermal an...