What Is High Temperature High Humidity Test
The high temperature high humidity test is also a constant temperature and humidity test, which is an environmental reliability test for the product. By simulating extreme high temperature and high humidity environmental conditions, the performance and durability of the product in this harsh environment are tested, and whether the impact of the product in this environment is within an acceptable range after a period of time. This paper will introduce the basic principle and process of high temperature high humidity test, discuss its application field, and introduce the relevant test standards
High temperature and humidity test is to use the equipment temperature and humidity chamber with heating, cooling, humidification, and dehumidification functions. Before the test, check whether the related functions and performance of the product are normal and take photos. Then, place the product in the temperature and humidity chamber, turn on the machine, and set the temperature, humidity and test duration of the temperature and humidity chamber. For example, 70°C, 95% humidity, 168 hours. After setting up, let the temperature and humidity box work, and the test begins. After reaching the set end time, take out the product and check again whether the relevant functions and performance of the product have changed before the test, so as to determine whether the product meets the test requirements. Sometimes it is also necessary to take the product out for inspection during testing to understand the state of the product at different test times. If the product is affected beyond the acceptable range before the preset test completion time, you can terminate the test in advance, find a solution to solve the problem, and re-test after the product is improved.
Application
The high temperature high humidity test is widely used in various industries, especially in the fields of electronics, automotive, aerospace and medical equipment, its main uses include:
1. Reliability test: The high temperature and high humidity test chamber can simulate the use of the product in a high temperature and high humidity environment, and evaluate the reliability and durability of the product by observing and recording the performance of the product under such conditions. This is particularly important for products such as electronics, automotive parts, and aerospace equipment that need to work in harsh environments.
2. Quality control: high temperature and high humidity test chamber can be used for quality control of raw materials, parts and finished products after assembly. By placing the product in a high temperature and high humidity environment, observing whether it has deformation, corrosion, aging and other problems, and evaluating whether its performance meets the requirements, it helps to improve the quality and reliability of the product.
3. Research and development and improvement: the high temperature and high humidity test chamber can be used to develop new products or improve existing products. By testing products in high temperature and humidity, potential problems and limitations of the product can be identified, which can guide the development staff to improve and optimize.
4. Standard test: high temperature and high humidity test chamber can be used to perform a variety of standard tests, such as high temperature and high humidity cycle test of electronic products, thermal shock test of automotive parts, etc. These standard tests help ensure that products comply with relevant industry standards and regulations. In general, the high temperature and high humidity test chamber plays an important role in various industries, and can be used for product reliability testing, quality control, research and development improvement and standard testing to help enterprises improve the quality and competitiveness of products.
MIL-STD-810G: Test method standard issued by the United States Department of Defense for military equipment and systems.
IEC 60068-2-30: Standard issued by the International Electrotechnical Commission for electronic and electrical equipment.
ISO 16750-4: Standard published by the International Organization for Standardization for automotive electronic equipment.
RTCA/DO-160G: Standard issued by the Joint Technical Committee on Avionics for avionics.
Introduction to high temperature high humidity test
High temperature high humidity test is an environmental test designed to simulate the operating conditions of a product in a high temperature and high humidity environment in order to evaluate its performance and reliability. In the high temperature and high humidity test, the product is usually exposed to high temperature (usually 40 ° C to 85 ° C) and high humidity (usually 75% to 95% relative humidity) for a certain period of time to simulate the harsh conditions that may be encountered in actual use.High temperature and humidity test is to use the equipment temperature and humidity chamber with heating, cooling, humidification, and dehumidification functions. Before the test, check whether the related functions and performance of the product are normal and take photos. Then, place the product in the temperature and humidity chamber, turn on the machine, and set the temperature, humidity and test duration of the temperature and humidity chamber. For example, 70°C, 95% humidity, 168 hours. After setting up, let the temperature and humidity box work, and the test begins. After reaching the set end time, take out the product and check again whether the relevant functions and performance of the product have changed before the test, so as to determine whether the product meets the test requirements. Sometimes it is also necessary to take the product out for inspection during testing to understand the state of the product at different test times. If the product is affected beyond the acceptable range before the preset test completion time, you can terminate the test in advance, find a solution to solve the problem, and re-test after the product is improved.
Application
The high temperature high humidity test is widely used in various industries, especially in the fields of electronics, automotive, aerospace and medical equipment, its main uses include:
1. Reliability test: The high temperature and high humidity test chamber can simulate the use of the product in a high temperature and high humidity environment, and evaluate the reliability and durability of the product by observing and recording the performance of the product under such conditions. This is particularly important for products such as electronics, automotive parts, and aerospace equipment that need to work in harsh environments.
2. Quality control: high temperature and high humidity test chamber can be used for quality control of raw materials, parts and finished products after assembly. By placing the product in a high temperature and high humidity environment, observing whether it has deformation, corrosion, aging and other problems, and evaluating whether its performance meets the requirements, it helps to improve the quality and reliability of the product.
3. Research and development and improvement: the high temperature and high humidity test chamber can be used to develop new products or improve existing products. By testing products in high temperature and humidity, potential problems and limitations of the product can be identified, which can guide the development staff to improve and optimize.
4. Standard test: high temperature and high humidity test chamber can be used to perform a variety of standard tests, such as high temperature and high humidity cycle test of electronic products, thermal shock test of automotive parts, etc. These standard tests help ensure that products comply with relevant industry standards and regulations. In general, the high temperature and high humidity test chamber plays an important role in various industries, and can be used for product reliability testing, quality control, research and development improvement and standard testing to help enterprises improve the quality and competitiveness of products.
Test standard
The execution of high temperature high humidity tests usually follows a number of international and industry standards to ensure the accuracy and comparability of tests. Some commonly used test criteria include:MIL-STD-810G: Test method standard issued by the United States Department of Defense for military equipment and systems.
IEC 60068-2-30: Standard issued by the International Electrotechnical Commission for electronic and electrical equipment.
ISO 16750-4: Standard published by the International Organization for Standardization for automotive electronic equipment.
RTCA/DO-160G: Standard issued by the Joint Technical Committee on Avionics for avionics.
