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.
|Published (Last):||17 October 2011|
|PDF File Size:||19.19 Mb|
|ePub File Size:||3.97 Mb|
|Price:||Free* [*Free Regsitration Required]|
Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. Precision and Bias Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Refer to Practice G for detailed information on the wstm applicable to use of results obtained in accordance with this practice.
Hemispherical on 37 Degree Tilted Surface 2. Ketola and Douglas Grossman, eds. Misleading results may be obtained by this method, since the masked portion of the specimen is still exposed to temperature and humidity cycles that in many cases will affect results. Obtain mutual agreement between all concerned parties for the specic exposure cycle used. NOTE 5—Since the stability of the le 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 axtm specimens with the le specimen may not be valid.
For instance, if two specimens are stacked vertically in each holder, then the top and bottom specimens should switch places halfway through the test.
Standards Subsctiption may be d429-05 perfect solution. Warning— Variation in results may be expected when operating conditions are varied within the accepted limits of this practice. NOTE 7—For some materials, changes may continue 4d329-05 the specimen has been removed from the exposure apparatus. 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.
Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries. The exposure used in this practice is not intended to simulate the deterioration caused by localized weather phenomena, such as, c4329-05 pollution, biological attack, and saltwater exposure.
Formally confirming that your products and services meet all trusted external and internal standards.
ASTM D-4329-05 QUV
Subscription pricing is determined by: You can download and open this file to your own computer but DRM prevents opening this file on another computer, asstm a networked server. Inspection Validating the specifications, value and safety of your raw materials, products and assets. Accelerated weathering simulates damaging effects of long term outdoor exposure of materials and coatings.
Operate the device continuously. It is recommended that at least three replicates of v4329-05 material be exposed to allow for statistical evaluation of results.
NOTE 6—An example of a statistical analysis using multiple-laboratory and exterior exposures to calculate an acceleration factor is described by Simms. Do not use arbitrary acceleration factors relating time in an exposure conducted in accordance with this practice and time in an outdoor environment because they can give erroneous information. A superscript epsilon e indicates an editorial change since the last revision or d439-05.
Accelerated Weathering (QUV) ASTM G, ASTM D, ASTM D, ISO
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.
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. Auditing Consulting Sourcing Training. It is recommended that deionized water be used for water used to produce condensation.
All concerned parties must agree on the specic control material used. 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. Add to Alert PDF. The values given in brackets are for information only. Do not place the sstm near a heat source such as an oven. Already Subscribed to this document.
When specimens are removed from the exposure apparatus for 24 h or more and then returned for additional exposure, report the elapsed time as noted in accordance with Section 9.
This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results.
Accelerated Weathering (QUV) ASTM G154, ASTM D4329, ASTM D4587, ISO 4892
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. Therefore, no reference to the use of this practice should be made unless accompanied by a report prepared in accordance with Section aastm that describes the specic operating conditions used.
This standard is not included in any packages. 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.