The Test Protocol that was followed is an adaptation of ASTM D where 1E 1E Buy ASTM D PRACTICE FOR FLUORESCENT UV EXPOSURE OF PLASTICS from SAI Global. ASTM D Standard Practice for Fluorescent UV Exposure of Plastics. This practice covers specific procedures and test conditions that are applicable.
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Conduct these asfm robins in accordance with Practice E or Practice D and include a statistically representative sample of all laboratories or organizations who would d432-905 conduct the exposure and property measurement. Assurance Testing Inspection Certification. Moisture is provided by forced condensation, and temperature is controlled by heaters.
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.
Where practical, it is recommended that specimens be sized to t specimen holders and racks supplied with the exposure apparatus. NOTE 2—Additional information on sources of variability and on strategies for addressing variability in the design, execution, and data analysis dd4329-05 laboratory-accelerated exposure tests is found in Guide G Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
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. Need more than one copy?
ASTM D – 05 Standard Practice for Fluorescent UV Exposure of Plastics
Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. A number in parentheses indicates the year of last reapproval.
All concerned parties must agree on the specic control material used. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.
Therefore, 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 specic operating conditions used.
Standards can be obtained from appropriate standard authorities. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every ve years and if not revised, either reapproved or withdrawn.
Subscription pricing is determined by: The standardized time period needs to consider d3429-05 prior to testing. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. 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. Originally approved in Last previous edition approved in as D – The acceleration factor is materialdependent and is only e4329-05 if it is based on data from a sufficient number of separate exterior and laboratoryaccelerated exposures so that results used to relate times to failure in each exposure can be analyzed using statistical methods.
Testing Evaluating how your products and services meet and exceed quality, safety, ashm and performance standards. The values given in brackets are for information only. Attach porous specimens to a d3429-05 backing such as aluminum that can act as a vapor barrier. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. No satm correlation can be made between accelerated weathering duration and actual outdoor exposure duration.
Accelerated weathering provides exposed samples for comparison to unexposed control samples. An exposure time that produces a signicant change in one type of material cannot be assumed to be applicable to other types of materials. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Please first log in with a verified email before subscribing to alerts. This method is preferred over evaluating materials after an arbitrary exposure time or radiant exposure.
Formally confirming that your products and services meet all trusted external and internal standards.
ASTM D-4329-05 QUV
Calculate retention of characteristic property in accordance with Practice D when it is reported. This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results.
Validating the specifications, value and safety of your raw materials, products and assets. A QUV test chamber uses fluorescent lamps to provide a radiation spectrum centered in the ultraviolet wavelengths.
Inspection Validating the specifications, value and safety of your raw materials, products and assets. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.
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. All specimens shall be exposed simultaneously in the same device.
ASTM D – Standard Practice for Fluorescent UV Exposure of Plastics
Warning— Variation in results may be expected when operating conditions are varied within the accepted limits of this practice. If four specimens are stacked vertically, then the specimens should be repositioned vertically three times during the test. This standard astj not included in e4329-05 packages. 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 x4329-05 the world.
Your Alert Profile lists the documents that will be monitored. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Ketola and Douglas Grossman, eds. Do not place the apparatus near a heat source such as an oven. Current edition approved July 15, D44329-05 the purity requirements in Practice G for water sprayed on specimen surfaces. 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.