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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Polystyrene Lightfastness Standards are included among the test samples to monitor and verify the performance of the equipment. 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 Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.

Certification Formally confirming that your products and services meet all trusted external and internal standards. Auditing Consulting Sourcing Training. Various cycles are defined by the sstm specifications depending upon the intended end use application. However, performance comparisons under the controlled conditions of accelerated weathering axtm be compared to documented performance of materials and coatings that have experienced extended periods of end use exposure.

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 – light, moisture, and heat. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries. Moisture is provided by a humidifier and direct spray, and temperature is controlled by heaters. Link to Active This link will always route to the current Active version of the standard.

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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. Standard specimens are 69mm x mm. Microprocessors monitor and precisely control the radiation applied to the test samples.

Significant factors include regulation of line voltage, temperature and humidity control, and condition and age of the lamps and filters. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Testing 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.

Assurance Testing Inspection Certification. It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results. This practice uses exposure in a xenon-arc device equipped with window glass filters and operated in accordance with Practices G and G Inspection Validating the specifications, value and safety of your raw materials, products and assets.

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 f4459 accordance with this practice. Need help or have a question? No direct correlation can be made between accelerated weathering duration and actual v4459 exposure duration. A Weather-Ometer uses a xenon arc light source to provide a radiation spectrum that simulates natural sunlight.

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Send us a request Need help or have a question? It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Xenon-Arc Accelerated Exposure

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. Historical Version s – view previous versions of standard. Up to 60 test samples are mounted in the Ast, Arc and subjected to a cycle of exposure to specified combinations of light, humidity, temperature and water spray. Send us a request Wilton UK: Formally confirming that your products and services meet all trusted external and internal standards.

Whether your business is local or global, we can ensure your products meet quality, health, environmental, safety, and social accountability ast for virtually any market around the world.

Standards can be obtained from appropriate standard authorities. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.

Validating the specifications, value and safety of your raw materials, products and assets. Accelerated weathering provides exposed samples for comparison to unexposed control samples. Note 1 — There is no known ISO equivalent to this practice.

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. Often several exposure times such as, and hours also will be compared to each other.