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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A superscript epsilon e indicates an editorial change since the last revision or reapproval.
ASTM D-4329-05 QUV
However, performance comparisons under the controlled conditions of accelerated weathering can be f4329-05 to documented performance of materials and coatings that have experienced extended periods of end use exposure.
Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
These cycles would be continued for extended periods of time dd4329-05 up to thousands of hours – simulating even longer periods of time in the real world. As the voice of the U. Assurance Testing Inspection Certification.
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Standards can be obtained from appropriate standard authorities. Parts may be accommodated depending on size.
The standardized time period needs to consider conditioning prior to testing. Global Reach Intertek is d4392-05 industry leader with over 42, people in 1, locations in over countries. Conduct these round robins in accordance with Practice E or Practice D and include a statistically representative sample of all laboratories or organizations who would normally conduct the exposure and property measurement.
ASTM D – 05 Standard Practice for Fluorescent UV Exposure of Plastics
NOTE 4—This is especially important when mechanical properties are being investigated. 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. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Obtain mutual agreement between all concerned parties for the specic exposure cycle used.
This standard is not included in any packages.
Accelerated Weathering (QUV) ASTM G154, ASTM D4329, ASTM D4587, ISO 4892
NOTE 5—Since the stability of the d43290-5 specimen may also be timedependent, users are cautioned that over prolonged exposure periods, or where small differences in the order of acceptable limits are anticipated, comparison of exposed specimens with the le specimen may not be x4329-05.
Expose replicates of the test specimen and the control specimen so that statistically signicant performance differences can be determined NOTE 8—Fischer illustrates use of rank comparison between test and control materials in specications.
Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing 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. Warning— Variation in results may be expected when operating conditions are varied within the accepted limits of this practice.
An exposure time that produces a signicant change in one type of material cannot be assumed to be applicable to other types of materials. Add to Alert PDF. Last previous edition approved in as D – 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. No direct correlation can be made between accelerated weathering duration and actual outdoor exposure duration.
Subscription pricing is determined by: 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.
Originally approved in Where practical, it is recommended that specimens be sized to t specimen holders and racks supplied with the exposure apparatus. This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results. Need more c4329-05 one copy? Instrumental measurements are recommended whenever possible.
Hemispherical on 37 Degree Tilted Surface 2. It is recommended that deionized water be used for water used to produce condensation. All specimens shall be exposed simultaneously in the same device.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefax d439-05, or service astm. This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation zstm test results.
The acceleration factor is materialdependent and d4329-0 only valid if it is based on data from a sufficient number of separate exterior and laboratoryaccelerated exposures so that results d439-05 to relate times to failure in each exposure can be analyzed using statistical methods.
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Already Subscribed to this document. A number in parentheses indicates the year of last reapproval. 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 Measurements visual or instrumental should be made within a standardized time period or as agreed upon between the interested parties.
When a single exposure period is used, select a time or radiant exposure that will produce the largest performance differences between the test materials or between the test material and the control material.