ASTM D4459 PDF

This standard is issued under the fixed designation D ; the number 1 This practice is under the jurisdiction of ASTM Committee D20 on. It is the responsibilty of the Lab Manager to verify this setup is acceptable for the particular application or test method. ***. Test Method: ASTM D Buy ASTM D PRACTICE FOR XENON-ARC EXPOSURE OF PLASTICS INTENDED FOR INDOOR APPLICATIONS from SAI.

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Significant factors include regulation of line voltage, temperature and humidity control, and condition and age of the lamps and filters. Note 1 — There is no known ISO equivalent to this practice. Link to Active This link will always route to the current Active version of the standard.

Accelerated weathering provides exposed samples for comparison to unexposed control samples. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Moisture is provided by a humidifier and direct spray, and temperature is controlled by heaters.

Polystyrene Lightfastness Standards are included among the test samples to monitor and verify the performance of the equipment. Need help or have a question? However, performance comparisons under the controlled conditions of accelerated weathering can be compared to documented performance of materials and coatings that have experienced extended periods of end use exposure.

Standard specimens are 69mm x mm.

Various cycles are defined by the appropriate specifications depending upon the intended end use application. Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries.

Smaller sizes, or slightly larger sizes, can be accommodated, but this equipment does not readily accept actual parts. Therefore, all references to the use of this practice must be accompanied by a report prepared in accordance with Section 9 that describes the specific operating conditions used.

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Through our network of over 43, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions to a wide range of industries around the world. Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory sstm prior to use. Auditing Consulting Sourcing Training. No direct correlation can be made between accelerated weathering duration and actual outdoor exposure duration.

Historical Version s – view previous versions of standard. These cycles would be continued for extended periods of time – up to thousands of hours – simulating even longer periods of time in the real world.

Whether your business is local or global, we can ensure your atm meet quality, health, environmental, safety, and social accountability standards for virtually any market around the world. Send us a request Wilton UK: Inspection Validating the specifications, value and safety of your raw materials, products and assets.

Xenon-Arc Accelerated Exposure

Standards can be obtained from appropriate standard authorities. Formally confirming that your products and services meet all trusted external and internal standards.

Send us a request Need help or have a question?

Glass filters around the xenon arc modify the light spectrum to simulate the appropriate end use conditions. Refer to Practice G for detailed information on the caveats applicable to use of results obtained in accordance with this practice. Certification Formally confirming that your products and services meet all trusted external and internal standards.

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Note 3 — Additional information on sources of variability and on strategies for addressing variability in the design, execution and data analysis of laboratory accelerated exposure tests is found in Guide G Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.

Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. This practice uses exposure in a xenon-arc device equipped with window glass filters and operated in accordance with Practices Astn and G A Weather-Ometer uses a xenon arc light source to provide a radiation spectrum that simulates natural sunlight. Validating the specifications, value qstm safety of your raw materials, products and assets. It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results.

Xenon-Arc Accelerated Exposure

Up to 60 test samples are adtm in the Xenon Arc and subjected to a cycle of exposure to specified combinations of light, humidity, temperature and water spray. Accelerated weathering simulates the damaging effects of long term outdoor exposure of materials and coatings by exposing test samples to varying conditions of the most aggressive components of weathering asstm light, moisture, and heat.

Assurance Testing Inspection Certification. Often several exposure times such as, and hours also will be compared to each other. Microprocessors monitor and precisely control the radiation applied to the test samples.

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