Environmental test equipment standards and common problems

Environmental test equipment is designed and manufactured based on established environmental testing methods. As productivity improves and the national economy develops, these testing methods have become increasingly diverse, leading to a greater variety of environmental test equipment. To ensure that environmental tests can be conducted reliably and continuously, high-quality and high-performance test equipment is essential. This requires standardized measures for the scale of the test equipment, namely, environmental test equipment standards, as well as basic parameter verification standards for such equipment. China's environmental testing equipment standards (referred to as "equipment standards") and the testing method standards for electrical and electronic products' environmental testing equipment (referred to as "method standards") were developed and released in the mid-1980s. If your company needs specific standards, you can check them on the "National Standard Network." All necessary information is available there. I will provide some common parameters for your reference. **Second, Environmental Testing Equipment Standards** 1. There are currently nine environmental test equipment standards: - GB10586-89: Technical conditions for wet heat test chambers - GB10587-89: Technical conditions for salt spray test chambers - GB10588-89: Technical conditions for mildew test chambers - GB10589-89: Technical conditions for low temperature test chambers - GB10590-89: Technical conditions for low temperature/low pressure test chambers - GB10591-89: Technical conditions for high temperature/low pressure test chambers - GB10592-89: Technical conditions for high and low temperature test chambers - GB11158-89: Technical conditions for high temperature test chambers - GB11159-89: Technical conditions for low pressure test chambers 2. Common issues with equipment standards include: 1) **Scope of application**: These standards apply to all manufacturers of environmental test equipment. The corresponding products serve as the basis for factory inspections, type inspections, and quality supervision. 2) **Adaptability**: Products passing the test according to the equipment standards must meet the requirements of the corresponding environmental test method standards. 3) **Operationality**: Equipment standards are generally implementable and widely used by manufacturers. 4) **Inadequacies in revising standards**: The nine equipment standards were drafted in the 1980s. With technological advancements and evolving industry needs, it is necessary to revise these standards. 3. **Implementation Considerations** 1) **Basic environmental conditions** include: - Temperature: 15°C ~ 35°C - Relative humidity: No more than 85% RH - Atmospheric pressure: 86kPa ~ 106kPa - Thermal radiation: No direct sunlight or heat source exposure - Airflow: No strong airflow; avoid direct air blowing into the cabinet - Electromagnetic field: No strong electromagnetic interference - Three wastes: No high concentration of dust or corrosive substances - Cooling water source: Water temperature ≤ 30°C, water pressure 0.1~0.3MPa - Humidifying water source: Resistivity ≥ 500Ω·m - Power supply: 220±22V, 380±38V, 50±0.5Hz 2) **Load requirements**: - Load type: Electrical, electronic, or other products, parts, or insulation materials (except salt spray test) - Load mass: 50~80kg/m³ - Load volume: ≤ 1/5 of the chamber volume - Main air duct blockage: ≤ 1/3 of the cross-sectional area - Salt spray test: Metal plate size 50×100×(1~2)mm, at least 160 samples per m² **Third, Basic Parameters Verification Method Standards for Environmental Test Equipment (Climate Test Equipment)** 1. Current verification method standards include six: - GB/T5170.2-1996: Temperature test equipment - GB/T5170.5-1996: Damp heat test equipment - GB/T5170.8-1996: Salt spray test equipment - GB/T5170.9-1996: Solar radiation test equipment - GB/T5170.10-1996: High and low temperature low pressure test equipment - GB/T5170.11-1996: Corrosion gas test equipment 2. Common issues with method standards include: 1) **Scope of application**: These standards are used for periodic inspection, selection of testing equipment, verification conditions, number of test points, distribution location, and data processing. 2) **Adaptability**: Qualified equipment should meet the requirements of the method standard and be able to perform relevant environmental tests within the prescribed time frame. 3) **Operationality**: These standards are mainly used by environmental test equipment units, but less commonly applied by production plants. 3. Key implementation considerations: - Use each standard together with general rules. - For composite test equipment, use several sub-standards and general rules together. - Verification conditions should align with the equipment standard. - Load requirements are defined by the general regulations and should match the equipment standard GB11158. **Comparison Between Equipment Standards and Verification Method Standards** | Control Content | Equipment Standard | Method Standard | |------------------------|-----------------------------------------------------|--------------------------------------------------------| | Scope of Application | Factory and type inspection | Periodic verification of test equipment | | Environmental Conditions | Consistent | Consistent | | Load Conditions | Three requirements (except salt spray) | Based on GB11158 | | Test Items | Comprehensive performance testing | Testing according to test requirements | | Subject | After assembly and commissioning | Intact structure, no defects, proper control accuracy | | Inspection Type | Type, factory, arbitration inspection | Cycle test | | Classification of Results | Qualified, unqualified, approved, unqualified | Qualified, approved, deactivated | | Result Processing | Qualified, unqualified, batch rejection, etc. | Certificate, permit, stop card | **Corresponding Selection of Equipment Standards and Verification Method Standards** 1. Select equipment based on the test method specified for the product. One equipment standard corresponds to one type of equipment. Composite test chambers require multiple equipment standards. 2. According to the test method, the equipment should be periodically verified using one or more verification method standards. 3. Standards for verification of different test methods include: | Test Method Standard | Verification Method Standard | |----------------------|------------------------------| | GB2423.1 | GB5170.2 | | GB2423.3 | GB5170.5 | | GB2423.17 | GB5170.8 | | GB2423.19 | GB5170.11 | **Key Points in Conducting Environmental Tests** 1. Choose appropriate temperature and humidity ranges and control accuracy. 2. Consider the impact of the test item’s volume, weight, and windscreen cross-section on equipment performance. 3. Ensure suitable environmental conditions at the equipment installation site. 4. Select an appropriate test severity level. **Conclusion** Through analysis of environmental test equipment standards and their basic parameters, it is clear that the two types of standards are independent yet interrelated. Understanding their scope of application and technical differences is crucial for accurate and effective implementation. We hope to work together to implement these standards in our future business.

Hydrogen Water Generator

Best Hydrogen Water Generator,Molecular Hydrogen Machine,Hydrogen Water Bottle Generator,Hydrogen Water Generator Bottle,Hydrogen Generator Water Bottle

Shenzhen Yibainian Investment Industrial Co., Ltd. , https://www.100hydrogenwater.com