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Temperature and humidity environmental testing

Jun. 15, 2018

Temperature and humidity environmental testing often referred to as temperature cycling, or thermal testing, temperature and humidity stress testing is a process of cycling between two extreme temperature conditions. The air temperature may be changed at a slow rate or a fast rate of change by controlling the air temperature and temperature transition rate. Temperature humidity chambers allow for accelerated changes inside the chamber but at a gradual rate of transition compared to traditional thermal shock testing.

What separates a thermal cycling test from a thermal shock test is that thermal shock uses a chamber that contains two pre-heated and pre-cooled workspaces with a mechanism that transfers the product between the hot and cold zones. Instead of waiting for the chamber to cycle between two temperatures, the product is subjected to an immediate temperature shock by rapidly moving into a pre-heated or pre-cooled chamber.

Rapidly cycling temperatures can expose material incompatibilities and weaknesses in a number of different materials and product assemblies as the materials expand and contract in response to the temperature fluctuations.

Individual test requirements may call for temperature testing alone, or temperature and humidity testing. Our temperature and humidity testing services are used across an array of industries for product storage, temperature cycling tests, as well as high temperature and humidity testing. Many test applications include thermal cycling tests for automotive, electronics and defense testing where products are exposed to temperature extremes in their end use environment. Temperature humidity test chamber is also in pharmaceutical testing and package testing for accelerated aging tests.

Temperature and humidity environmental testing