LISUN OTC-150A Ozone Test Chamber – After Sales Questions and Answers

Ozone test purpose:
Ozone Test Chamber (or called Ozone Aging Chamber and Ozone Aging Test Chamber) is design according to rubber being sensitive characteristic of to ozone, it simulate the environmental to accelerate the rubber aging process by ozone. It compared to different products(test sample) aging result each other according to the same ozone aging test conditions/standards, and get to comparable aging resistance performance.

Test process:
The ozone aging test is expose the test sample at the closed, non-illuminated constant ozone concentration air and constant temperature test box. The sample is tested at predetermined time, to evaluate ozone aging resistance through the sample’s cracks degree or other measured performance change. Ozone aging included static tensile test and dynamic tensile test. The ozone concentration, temperature, humidity, and sample tensile ratio are very important parameters in this aging test.

Application standards:
• GB/T7762-2014 Ozone Aging Resistance Test of Vulcanized Rubber – Static Tensile Test Method;
• GB/T13642-2015 Ozone Aging Resistance Test of Vulcanized Rubber – Dynamic Tensile Test Method;
• ASTM1149 Standard Test Methods for Rubber Deterioration – Cracking in an Ozone Controlled Environment;
• ASTM D3041-79 Method of Testing Coated Fabrics-Ozone Cracking in a Chamber;
• ASTM D1171-18 Standard Test Method for Rubber Deterioration—Surface Ozone Cracking Outdoors;
• ISO1431-1 and ISO1431-3 Rubber, vulcanized or thermoplastic – Resistance to ozone cracking;

Q1: Is it possible not to add water without humidity?
A1: If there is no water in the water tank, the equipment will alarm and cannot start testing. Whether to do a humidity test or not, it is necessary to add water. The ozone generated during the testing process also needs to be discharged into water for dissolution after the test is completed.

Q2: Precautions for humidity testing
A2:1) Whether humidity is measured or not, water needs to be added to the water tank.

2) The white gauze in the figure below is a wet ball gauze tape. If humidity testing is not performed, please remove it to avoid the drying and hardening of the gauze tape during high temperature testing, which may lead to a decrease in water absorption performance. When conducting a humidity test, install it as shown in the following figure, with the upper end covered on the humidity sensor and the lower end immersed in the sink.

3) If there is an issue with the humidity display, please check if the gauze is still functioning properly. It may be necessary to replace the gauze.

Q3: When will waste be discharged?
A3: Inhaling ozone is harmful to the human body, so waste should be discharged before opening the door. But whether it is fixed value testing or program testing, there is no need to eliminate waste during the testing process, otherwise it will affect the testing effect.
After the formal testing is completed, a separate run of no less than 5 minutes for waste disposal is sufficient.

Q4: Where will the ozone generated during the testing process be discharged?
A4: Ozone cannot be discharged into the external air casually, as it can cause pollution or harm to the human body. When the test is completed and the waste is discharged, ozone will be dissolved in the water discharged into the water tank.

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.

Please feel free to contact us if you need any support.
Tech Dep: Service@Lisungroup.com, Cell/WhatsApp:+8615317907381
Sales Dep: Sales@Lisungroup.com, Cell/WhatsApp:+8618117273997

Tags：OTC-150A