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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Formally confirming that your products and services meet all trusted external and internal standards.

Historical Version s – view previous versions of standard. Note 1 — There is no known ISO equivalent to this practice.

Accelerated weathering simulates the damaging effects of long term outdoor exposure of materials and coatings by exposing test samples to varying conditions of the aatm aggressive components of weathering – light, moisture, and heat.

Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Need help or have a question? Link to Active This link will always route to the current Active version of the standard.

Xenon-Arc Accelerated Exposure

Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Smaller sizes, or slightly larger sizes, can be accommodated, but this equipment does not readily accept actual parts.

Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries. Send us a request Need help or have a question? Various cycles are defined by the appropriate specifications depending upon the intended end use application. Inspection Validating the specifications, value and safety of your raw materials, products and assets. Up to 60 test samples are mounted in the Xenon Arc and subjected to d4495 cycle d459 exposure to specified combinations of light, humidity, temperature and water spray.

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Moisture is provided by a humidifier and direct d445, and temperature is controlled 4d459 heaters. This practice uses exposure in a xenon-arc device equipped with window glass filters and operated in accordance with Practices G and G Validating the specifications, value and safety of your raw materials, products and assets. Standard specimens are 69mm x mm.

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 Often several exposure times such as, and hours also will be compared to each other. Send us a request Wilton UK: Standards can be obtained from appropriate standard authorities.

Xenon-Arc Accelerated Exposure

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. A Weather-Ometer uses a xenon arc light source to provide a radiation spectrum that simulates natural sunlight. Assurance Testing Inspection Certification.

Refer to Practice G for detailed information on asfm caveats applicable to use of results obtained in accordance with this practice.

Whether your business is local or global, we can ensure your products meet quality, health, environmental, safety, and social accountability standards for virtually any market around the world. Referenced Documents purchase separately The documents listed below are referenced within asm subject standard but are not provided as part of the standard.

Certification Formally confirming that your products and services meet all trusted external and internal standards. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results. It is the responsibility of the user satm this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Significant factors include regulation of line voltage, temperature and humidity control, and condition and age of the lamps and filters. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Auditing Consulting Sourcing Training. Glass filters around the xenon arc modify the light spectrum to simulate the appropriate end use conditions.

Accelerated weathering provides exposed samples for comparison to unexposed control samples. 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.

Microprocessors monitor and precisely control the radiation applied to the test samples. No direct correlation can be made between accelerated weathering duration and actual outdoor exposure duration.

Polystyrene Lightfastness Standards are included among the test samples to monitor and verify the performance of the equipment. 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. 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.