ASTM D4329 PDF

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. ASTM D – Designation: D – 05 Standard Practice for Fluorescent UV Exposure of Pla.

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ASTM D – 05 Standard Practice for Fluorescent UV Exposure of Plastics

All concerned parties must agree on the specic control material used. D — 05 Standard Practice for Fluorescent UV Exposure of Plastics1 This standard is issued under the xed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries.

ASTM D4329

It is the responsibility of the user of adtm standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. A number in parentheses indicates the year of last reapproval.

Measure ambient temperature at a maximum distance of mm [6 in. The exposure used in this practice is not intended to simulate the deterioration caused by localized weather phenomena, such as, atmospheric pollution, biological attack, c4329 saltwater exposure. NOTE d43299 is especially important when mechanical properties are being investigated. Where practical, it is recommended that specimens be sized to t specimen holders and racks supplied with the exposure apparatus.

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

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Therefore, no reference to the use of this practice should be made unless d429 by a report prepared in accordance with Section 8 that describes the specific operating conditions used. Up to 20 test c4329 are mounted in the QUV and subjected to a cycle of exposure to intense ultraviolet radiation followed by moisture exposure by condensation.

Referenced Documents purchase separately The documents awtm below are referenced within the subject standard but are not provided as part of the standard.

Parts may be accommodated depending on size.

ASTM D – UV EXPOSURE OF PLASTICS

Users of this standard are expressly advised that determination of the validity of any such patent rights, and s4329 risk of infringement of such rights, are entirely their own responsibility.

This standard is subject to x4329 at any time by the responsible technical committee and must be reviewed every ve years and if not revised, either reapproved or withdrawn. Ketola and Douglas Grossman, eds. Often several exposure times such as, and hours also will be compared to each other. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

All concerned parties must agree on the control material used. 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.

If four specimens are stacked vertically, then the specimens should be repositioned vertically three times during the test. Validating the specifications, value and safety of your raw materials, products and assets. For instance, if two specimens are stacked vertically in each holder, then the top and bottom specimens should switch places halfway through the test. This practice astn covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results.

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F4329 unexposed surface must not be used as part of the test area. An exposure time that produces a signicant change in one type of material cannot be assumed to be applicable to other types of materials. Send us a request Wilton UK: All specimens shall be exposed simultaneously d439 the same device.

Signicant factors include regulation of line voltage, temperature of the room in which the device operates, temperature control, and condition and age of wstm lamp. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains wstm business processes. Current edition approved July 15, Typically, flat plaques or disks are used for accelerated weathering studies.

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. Link to Active This link will always route to the current Active version of the standard.

Suggested aluminum alloys are, or It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results. Control of ambient temperature is particularly critical when one apparatus is stacked above another, because the heat generated from the lower unit can interfere with the operation of the units above.

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

It is the responsibility of the user of this standard to d43229 appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.