IEC 60068-2-1 Environmental Tests - Part 2-1: Tests - Test A: Cold

The IEC 60068-2-1 standard published by the International Electrotechnical Commission (IEC) deals with cold tests that can be applied to both non-heat-dissipating and heat-dissipating samples. For non-heat-dissipating samples in the last update of this standard, tests Ab and Ad do not deviate substantially from previous versions. Test Ae is added for test equipment that primarily requires it to be operational throughout the test, including the conditioning periods.

The purpose of cold testing is limited to determining the ability of components, equipment or other objects to be used, transported or stored at low temperature. The cold tests covered by this standard do not ensure the ability of samples to withstand or operate during the temperature changes to be evaluated. In this case, the IEC 60068-2-14 standard is applied.

Cold tests are generally subdivided into:

• Test Ab: Cold test for samples that do not emit heat with gradual temperature change
• Test Name: Cold test for samples that emit heat by gradual temperature change (temperature powered up after initial temperature stabilization)
• Test Ae: Cold test for heat dissipating samples with gradual variation (temperature at which power must be supplied throughout the test)

The procedures given in IEC 60068-2-1 are normally designed for samples that achieve temperature stability during the performance of the test procedure. Temperature chambers are built and verified according to IEC 60068-3-5 and IEC 60068-3-7 standards. Further guidance for dry hot and cold testing is found in standard IEC 60068-3-1 and general guidance in standard IEC 60068-1.

This latest update of the standard deals with cold tests applied to both non-heat-dissipating and heat-dissipating samples. Within the framework of this standard, a sample is considered to be a heat emitter only when the hottest point on its surface, measured in free air conditions, i.e. with low air velocity circulation, is more than 5K above the ambient temperature of the surrounding atmosphere.

In short, the purpose of cold testing is to determine the ability of components, equipment or other objects to be used, transported or stored at low temperature.

Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our organization includes cold test services that can be applied to both non-heat-emitting and heat-dissipating samples within the scope of IEC 60068-2-1 standard, with its trained and expert staff and advanced technological equipment. gives.