The xenon lamp test chamber box simulates the destructiveness of the whole sun light wave to the product. At the same time, it can also simulate the environmental conditions such as rain, high temperature, high humidity, condensation, and darkness. By reproducing these conditions, they are combined into a cycle and let it automatically execute the number of cycles. The realistic natural climate of the experiment, using a xenon arc lamp that can simulate the full sunlight spectrum to reproduce the destructive light waves existing in different environments, can provide corresponding environmental simulation and accelerated testing for scientific research, product development and quality control. The box body of the xenon lamp test chamber should be made of corrosive materials, and the internal device includes the radiation source of the filter system, the sample frame, etc. The radiation source is composed of one or more xenon lamps. The radiation generated by them is filtered, and the relative spectral energy distribution of the irradiance on the plane of the model frame is named with the ultraviolet sharp and visible radiation of the sun or the solar ultraviolet light filtered through 3mm window glass Visible light radiation.
Generally speaking, the choice of radiant flux is for the average irradiance E of the test sample surface to be
---- The average irradiance between 300nm-400nm is 60W / m2, or 0.51W / m2 at 340nm;
——The average irradiance between 300nm-400nm is 50W / m2, or 1.1W / m2 at 420nm.
Both parties can agree to use a high irradiance test, and can choose to make the average irradiance E on the surface of the test sample reach:
---- The average irradiance between 300nm-400nm is 60W / m2-180W / m, or 0.51W / m2-1.5W / m2 at 340nm;
---- The average irradiance between 300nm-400nm is 50W / m2-162W / m, or 1.1W / m2-3.6W / m2 at 340nm;
About our School Chairs:
Our school chairs are specifically designed to provide comfort and support to students during long hours of sitting, promoting better concentration and focus. The advantages of school chairs can be summarized as follows:
1. Ergonomic design: One of the key advantages of our school chairs is their ergonomic design. They are constructed with the aim of promoting proper posture and spinal alignment. The chairs typically feature a curved backrest that supports the natural curve of the spine, reducing the risk of back pain and discomfort. Additionally, they have a contoured seat that provides optimal support to the thighs and buttocks, preventing numbness and improving blood circulation.
2. Adjustable features: Our school chairs come with adjustable features, allowing students to customize the chair according to their individual needs. Height-adjustable chairs are particularly beneficial as they accommodate students of different heights, ensuring that their feet are firmly planted on the ground, promoting better stability and reducing strain on the legs. Adjustable backrests and armrests are also advantageous, as they allow students to find the most comfortable position for their bodies.
3. Durability and longevity: Our school chairs are typically made from high-quality materials such as metal or durable plastics, ensuring their longevity and resistance to wear and tear. This is essential in a school setting where chairs are subjected to heavy use on a daily basis. Investing in durable chairs reduces the need for frequent replacements, saving schools money in the long run.
4. Easy maintenance: Our school chairs are designed to be easy to clean and maintain. They are constructed with smooth surfaces that can be easily wiped down, preventing the accumulation of dust, dirt, and germs. This is especially important in maintaining a hygienic environment, as schools are prone to the spread of illnesses among students.
5. Stackable and space-saving: Our school chairs are stackable, allowing for easy storage when not in use. This is particularly advantageous in schools with limited space, as it allows for efficient use of available resources. Stackable chairs can be neatly stacked and stored away, freeing up valuable floor space for other activities.
6. Versatility: Our school chairs are designed to be versatile and adaptable to various learning environments. They can be used in classrooms, computer labs, libraries, and other educational spaces. Their lightweight construction makes them easy to move around, allowing for flexibility in arranging seating arrangements and facilitating group work or discussions.
In conclusion, our school chairs offer numerous advantages that contribute to a comfortable and supportive learning environment. Their ergonomic design, adjustable features, durability, easy maintenance, stackability, and versatility make them an essential component of any educational institution. By investing in high-quality school chairs, schools can enhance the overall learning experience for students, promoting better focus, concentration, and overall well-being.
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Henan Toda Technology Co., Ltd. , https://www.httofficefurniture.com