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

Overview and Purpose

IEC 60068-2-1 is a part of the IEC 60068 series that focuses on environmental testing for electronic equipment, with this specific part detailing the procedures for cold testing. The purpose of Test A: Cold, is to determine the ability of components, equipment, or other articles to be used, transported, or stored at low temperatures. The test simulates the effects of cold on the specimen, including changes in physical properties, mechanical functioning, and chemical stability.

How the Test is Conducted

1. Preparation: The specimen is prepared according to its operational instructions, ensuring it is in the correct state before the test begins. This may involve setting it to a specific mode or condition that it would be in during actual use.
2. Temperature Exposure: The specimen is placed in a test chamber where the temperature is lowered to the specified test level. The temperature levels and exposure duration are determined based on the product’s intended operational environment and manufacturer’s specifications.
3. Temperature Stabilization: Once the test temperature is reached, the specimen is maintained at this temperature for a predetermined period to ensure thorough exposure. This duration varies depending on the test objectives and the specimen’s characteristics.
4. Recovery and Evaluation: After exposure, the specimen is returned to normal ambient temperature conditions for recovery. It is then evaluated for any signs of damage, malfunction, or performance degradation. The evaluation criteria may include visual inspection, functional testing, and measurement of electrical properties.

Purpose of the Standard

• Reliability Under Cold Conditions: Ensures that electronic components and equipment can withstand and operate effectively in cold environments, which is crucial for products used in outdoor settings, refrigerated environments, or regions with cold climates.
• Design Verification: Helps manufacturers identify and rectify potential issues related to cold temperature performance during the design and development phase.
• Quality Assurance: Forms an integral part of quality assurance processes, verifying that products meet international standards for cold temperature operation.
• Consumer Confidence: Products tested according to IEC 60068-2-1 can provide assurance to consumers and businesses regarding their reliability and performance in cold conditions.