When conducting tests in high and low temperature test chambers, it's essential to define the size, type, and placement of the test samples. This article provides a comprehensive guide on how to properly position the samples and other important considerations during testing.
First, the volume of the test samples should ideally not exceed one-third of the chamber's internal space. If the samples take up more than this, it can interfere with the airflow inside the chamber, leading to uneven temperature distribution and inaccurate test results.
Next, the samples should be placed in the center of the chamber, ensuring they don't block the upper air ducts or sit directly on the chamber surface. It’s important to adjust the sample rack according to the product’s size, shape, weight, and quantity to maintain proper spacing and ensure even heat distribution.
If the test sample is a rubber-based material, it should be placed on a protective plate to prevent it from melting onto the sample holder when exposed to high temperatures. This helps avoid damage to both the sample and the chamber.
Additionally, if the sample is a liquid, it must be securely contained in a suitable container to prevent spills. For volatile, flammable, or natural substances, it is strongly recommended to avoid testing them unless absolutely necessary. In such cases, the temperature should be kept as low as possible to minimize risks.
Tip: If the test chamber requires an external power supply, always connect the wires to the designated test hole. Avoid letting the wires tangle, as this could pose a safety hazard.
Proper setup and attention to detail are crucial for accurate and safe testing. Following these guidelines ensures that your test results are reliable and that the equipment remains in good condition for future use.
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