ASTM D tests for fluorescent UV exposure of plastics. It covers specific procedures and test conditions based on practices ASTM G and ASTM G This standard is issued under the fixed designation D ; the number 1 This practice is under the jurisdiction of ASTM Committee D on Plastics. 7 Jun ASTM D – Designation: D – 05 Standard Practice for Fluorescent UV Exposure of Pla.
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Significant factors include regulation of line voltage, temperature of the room in which the device operates, temperature control, and condition and age of the lamp.
D329 to Practice G for detailed information on the caveats applicable to use of results obtained zstm accordance with this practice. Often several exposure times such as, and hours also will be compared to each other. Moisture is provided by forced condensation, and temperature is controlled by heaters.
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. 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. This practice is intended to induce property changes associated with end-use conditions, including the effects of ultraviolet solar irradiance, moisture, and heat.
Inspection Validating the specifications, value and safety of your raw materials, products and assets. Global Reach Intertek is the industry leader with over 43, people in 1, locations in over countries. Typically, flat plaques or disks are used for accelerated weathering studies. Standards can be obtained from appropriate standard authorities. This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results.
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Send us a request Need help or have a question? Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Accelerated Weathering (QUV) ASTM G154, ASTM D4329, ASTM D4587, ISO 4892
Formally confirming that your products and services meet all trusted external and internal standards. Auditing Consulting Sourcing Training. The exposure used in this practice is not intended to simulate the deterioration caused by localized weather phenomena, such as, atmospheric pollution, biological attack, and saltwater exposure. 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.
The values given in parentheses are for information only. Accelerated weathering simulates damaging effects of long term outdoor exposure of materials and coatings. Assurance Testing Inspection Certification. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
Hemispherical on 37 Tilted Surface.
Warning— Variation in results may be expected when operating conditions are varied within the accepted limits of this practice. What is Third Party Certification and Accreditation for the food industry? It is recommended that at sstm three replicates of each material be exposed to allow for statistical evaluation of results.
Note 2 — 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 The standard sample holders can hold one sample 3 x 12 inches 75 x mm or two samples 3 x astj inches 75 x mm. Validating the specifications, value and safety of your raw materials, products and assets. Certification Formally confirming that your products and services meet all trusted external and internal standards.
Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. No direct correlation can be made between accelerated weathering duration and actual outdoor exposure duration.
Accelerated Weathering (QUV) ASTM G, ASTM D, ASTM D, ISO
Up to 20 test samples are mounted in the QUV and subjected to a cycle of exposure to intense ultraviolet radiation followed by moisture exposure by condensation. Link to Active This link will always route to the current Active version of the standard. 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.
Send us d43299 request Wilton UK: A QUV test chamber uses fluorescent lamps to provide a radiation spectrum centered in the ultraviolet wavelengths.
Evaluating how your products and d439 meet and exceed quality, safety, sustainability and performance standards. Need help or have a question? Historical Version s – view previous versions of standard.
Parts may be accommodated depending on size. Accelerated weathering provides exposed samples for comparison to unexposed control samples. D43229, no reference to the use of this practice should be made unless accompanied by a report prepared in accordance with Section 8 that describes the specific operating conditions used.