The relative humidity in high and low temperature constant temperature and humidity test chambers plays a crucial role in environmental testing. Accurate and reliable measurement of relative humidity is essential to ensure that the test environment meets required standards, which directly affects the validity and consistency of test results.
According to the national standard GB2423.1, the temperature tolerance for low-temperature testing in these chambers is ±3°C. However, this range applies to the entire workspace, not just a single point or moment. It's important to note that a ±2°C tolerance represents an acceptable deviation, not a setting range. For example, if a test requires 50±2°C, the nominal value is 50°C, and the actual temperature must stay within the range of 48°C to 52°C. The set value should always be 50°C, as deviations beyond that are not allowed. This is because temperature control systems may drift slightly, and the internal temperature distribution might not be perfectly uniform.
Similarly, under military standard GJB150, the maximum temperature gradient is limited to 2.2°C. This refers to the uniformity of the temperature field at any given moment. Therefore, the ±2°C tolerance should never be interpreted as the allowable setting range. The system should be set precisely to the nominal value, with the measured temperature allowed to vary within the specified tolerance.
Yashilin brand high and low temperature constant temperature and humidity test chambers are designed and manufactured according to several national standards, including GB/T 2423.1-2008 (Low Temperature Test Method), GB/T 2423.2-2008 (High Temperature Test Method), GB/T 2423.3-2006 (Constant Heat and Humidity Test Method), and GB/T 10586-2006 (Technical Conditions for Dry Heat Test Chambers). These chambers are capable of performing a wide range of environmental tests, including high and low temperature and humidity conditions, ensuring compliance with industry requirements.
All Yashilin constant temperature and humidity test chambers are produced in Beijing, guaranteeing quality and precision. Whether you're conducting reliability testing, material evaluation, or product validation, these chambers provide a controlled and consistent environment for accurate results.
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