The Standard for UV Aging Test of UV Aging Test Chamber

The standard for UV aging test in UV aging test chamber is mainly used to simulate the damage of sunlight, humidity and temperature to materials. The UV aging test chamber simulates sunlight, dew and mimics the natural humidity, and the sample is tested in a simulated environment for several days or weeks, which can reproduce the damage that may occur outdoors in several months or years.

Principle of UV aging test chamber:
UV weathering test equipment is another light aging test equipment simulating light irradiation, which mainly simulates UV light in sunlight. At the same time, it can also reproduce the damage caused by rain and dew.

The equipment tests by exposing the test material to the controlled sunlight and humidity alternating cycle, and changing the temperature. The equipment simulates sunlight by using ultraviolet fluorescent lamps, and can also simulate humidity effects by condensation or spraying.

Only a few days or weeks are needed for the equipment to reproduce the damage that needs months or years outdoors. The damage caused mainly includes fading, discoloration, decrease in brightness, pulverization, cracking, blur, brittleness, decrease in strength and oxidation.

The test data provided by the equipment is of great help in selecting new materials, improving existing materials or evaluating the changes of components affecting product durability. The equipment can very well predict the changes that the product will encounter outdoors.

Although only 5% of sunlight is ultraviolet light, it is the main light factor causing the decrease of outdoor product durability. This is because the effect of photochemical reaction of sunlight increases with the decrease of wavelength.

Therefore, when simulating the damage effect of sunlight on the physical properties of materials, it is not necessary to reproduce the entire solar spectrum. In most cases, only simulating short-wave UV light is necessary. The reason why fluorescent UV lamps are used in ultraviolet accelerated weathering test machines is that they are more stable than other lamps and can better reproduce the test results.

Using fluorescent UV lamps to simulate the effect of sunlight on physical properties such as brightness reduction, cracking, peeling, etc. is the best method. There are several different UV lamps to choose from. Most of these UV lamps mainly emit ultraviolet light, not visible light and infrared light. The main difference between the lamps is their total UV energy produced in their respective wavelength ranges.

When doing aging test with UV aging test chamber, the surface temperature of the sample is an important exposure parameter. Generally, high temperature will accelerate the polymer degradation process, and the allowable test temperature should be determined according to the test material and aging performance evaluation index.

The infrared light emitted by the fluorescent UV lamp is less than the xenon lamp and carbon arc lamp, and the heating effect on the surface of the sample is basically formed by air convection. Therefore, the temperature difference between the black plate thermometer, black standard thermometer, sample surface and exposure chamber air is very small.

Standard for UV Aging Test by Ultraviolet Aging Test Chamber The Ultraviolet aging test complies with the relevant standards:
ISO 4892-1, ISO 4892-3, GB/T16585-1996, GB14522-93, GB/T16422.3-1997, ASTMG53 and etc., provides the best UV sunlight simulation, and is easy to use and operate.

How to Operate the Ultraviolet Aging Test chamber:
The UV Aging Test Chamber adopts fluorescent ultraviolet lamp as light source, simulates the ultraviolet radiation and condensation in natural sunlight, and performs accelerated weather resistance test to obtain the weather resistance of materials.

It can simulate the environment conditions of ultraviolet, rain, high temperature, high humidity, condensation, dark and etc. in the natural climate and complete the cyclic repetition automatically by combining these conditions into a cycle. It is important to operate the UV Aging Test Chamber correctly, because incorrect operation may cause some unnecessary faults and safety hazards. In order to ensure the safety of your use, please try to avoid some potential troubles：

1. Connect to the power supply and ground:
2. Open the chamber and place the sample according to the correct placement method (which can be found on the website or contacted by phone);
3. Set the “Total Test Time”, the three gearch on the timer are the “h”, “M” and “S”, respectively, represent for hours, minutes, and seconds. The running time can be selected by rolling up and down the button;
4. Set the “Lamp Lighting Time”, you can set the conversion between “Lighting” and “Humidity”, that is the lighting (daylight) and humidity (night) condensation, operated in the same way as “Total Test Time”;
5. Press the “Start” button and “Lamp Lighting” button;
6. “Temperature Setting”:Press “Mode Key” on the instrument panel of Ultraviolet Aging Test Box, then press “^ ^ Adjust Temperature” to adjust. After the adjustment is completed, press “Mode Key” to return, the character is stable and no flashing, the setting is complete;
7. After all the above is set up, the device enters the running state;
8. When the experiment time is over, the UV Aging Test Chamber will automatically enter the standby state;
9. Open the door of the test chamber and remove the sample;
10. When independent lighting test is required, please set the “Lamp Lighting Time” with the same time as “Total Test Time” and the “Max Value” on the other side.

How to extend the service life of UV test chamber:
1.Cut off the power when the equipment is in shutdown status and keep it dry;
2.Drain the water inside and wipe the working chamber and chamber body after each test;
3.It is recommended to cover the chamber with plastic film or cloth to prevent dust from entering; if there is dust, please clean it in time;
4.Do not bump the sensor inside the test chamber too hard;
5.The equipment should be installed in a ventilated place with constant temperature. It is recommended to install air exchange fan to keep indoor ventilation. Air conditioner can be installed if necessary.
6.Do not take apart and repair the test chamber by yourself when it can’t be excluded, please promptly notify the manufacturer for maintenance.
7.When the equipment is not used for a long time and needs to be opened for use again, please check the power, water source and components to make sure there is no problem before use;
8.The waste water discharge system must be installed in place;
9.Do not contact this device with corrosive chemicals, combustible and explosive materials;
10.When the operator does not wear protective glasses to use UV test chamber, please do not look directly into the lamp tube.

UV aging test Chamber is designed for evaluating the resistant performance of non-metallic materials, organic materials (plastics, paints, coatings, rubbers, etc.) under the specified conditions such as sunlight, temperature, and other climatic conditions. It creates a man-made testing environment imitating the natural light source such as sunlight and other damages in the nature, such as rain and dew damage, to impose on the materials and to assess the degree of color changing and fading under the accelerated environment conditions. The chamber fully complies with the requirements of Standard ISO 4892-1, ISO 4892-3, GB/T16585-1996, GB14522-93, GB/T16422.3-1997, ASTMG53 and etc., provides the best UV sunlight simulation, and is easy to use and operate.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator Guns, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

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