Low Temperature Storage Testing of Devices
In consumer product and electronics industries, ensuring that small devices like wearables, sensors, and other miniature components can withstand harsh environmental conditions is crucial. Low temperature storage testing evaluates how these devices perform under extreme cold to ensure they remain reliable and functional throughout their lifecycle. This service plays a pivotal role in the quality assurance process of manufacturers by identifying potential weaknesses early on.
The test involves exposing the device to temperatures well below freezing, often down to -40°C or lower, for an extended period. The duration can vary based on specific requirements but is typically at least 24 hours. Once exposed, the devices are allowed to return to ambient temperature before being inspected and tested for any changes in performance.
The importance of this testing cannot be overstated, especially considering that consumer electronics may find themselves operating in cold environments like arctic regions or high altitudes during use. This service helps manufacturers comply with international standards such as ISO 17654 and IEC 60068-2-69 which outline the requirements for low temperature storage testing.
For accurate and reliable results, it is essential to follow precise procedures. Specimens are selected based on their intended use and environmental exposure conditions. Preparation involves cleaning the devices thoroughly and ensuring they are free from any external contaminants that could affect test outcomes.
The equipment used for this testing includes controlled temperature chambers capable of reaching very low temperatures, humidity control systems where necessary, and monitoring devices to track changes in specimen parameters during storage. Upon completion of the test period, thorough inspections and functional tests are conducted on all specimens to check for any signs of degradation.
| Standard | Description |
|---|---|
| ISO 17654:2009 | Environmental testing – Low temperature storage test for electrical and electronic products. |
| IEC 60068-2-69:2003 | Environmental conditions for testing of electrical equipment, Part 2-69: Low temperature tests (slow cooling). |
The results from low temperature storage testing provide valuable insights into the durability and reliability of consumer products under cold stress. Compliance with these standards ensures that manufacturers meet regulatory requirements and build trust among consumers who expect their devices to work reliably across various climates.
Applied Standards
| Standard | Description |
|---|---|
| ISO 17654:2009 | Environmental testing – Low temperature storage test for electrical and electronic products. |
| IEC 60068-2-69:2003 | Environmental conditions for testing of electrical equipment, Part 2-69: Low temperature tests (slow cooling). |
Scope and Methodology
The scope of low temperature storage testing encompasses a range of conditions relevant to the operation of small devices in cold environments. This includes assessing how different materials behave when subjected to prolonged exposure to extremely low temperatures.
- Temperature range: -40°C down to -85°C
- Duration: At least 24 hours at specified temperature
- Recovery period: Devices allowed to reach ambient temperature after testing
The methodology involves placing the device in a controlled environment where it is exposed to the desired low temperatures. The process ensures that all parts of the device experience consistent cold exposure, thereby simulating real-world conditions accurately.
Quality and Reliability Assurance
- Conducting regular internal audits to ensure adherence to ISO/IEC standards
- Training staff on the latest testing techniques and equipment usage
- Implementing robust quality control measures throughout each stage of testing
- Maintaining state-of-the-art facilities equipped with advanced instrumentation
