The environmental tests are more exigent in
temperature change rates. One of the most common test are the accelerated
stress tests or Stress Screening (ESS); during these tests the sample to be
tested must to endure high temperature change rates cooling and heating.
These temperature change rates can be varied between 5
and 12ºC/min. it submit the samples to high stress degree, so it can verify if
exist some kind of defect in the samples guaranteeing the quality of the
samples, and avoiding returns of samples during the guarantee period.
Some standards:
· Thermal cycles: IEC 60068-2-14, test Nb, IEC 60721-4, DIN 40046,
part 14- test Nb,etc
· Heating: IEC 60068-2-2, test B, IEC 60721-4, DIN 40046, part
4, test B, DIN 72300-4, etc.
· Cooling: IEC 60068-2-1, test A, IEC 60721-4, DIN 40046, part
3, test A, DIN 72300-4, etc
· Alternative climate: IEC 60068-2-30, test Db, Var.1, IEC 60068-2-30, test
Db, Var.2, IEC 60068-2-38, IEC 60068-2-4, test D, IEC 60721-4, etc.
DYCOMETAL, company with over 25 years experience in developing
simulation chambers for environmental testing, offers customers STRESS SCREENING CHAMBERS to carry out such tests.
