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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Proceed to Checkout Continue Shopping. Inspection Validating the specifications, value and safety of your raw materials, products and assets. 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-4329-05 QUV
Precision and Bias A superscript epsilon e indicates an editorial change since the last revision or reapproval. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
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Periods of Exposure and Evaluation of Test Results 8.
Accelerated Weathering (QUV) ASTM G154, ASTM D4329, ASTM D4587, ISO 4892
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.
Where practical, it is recommended that specimens be sized to t specimen holders and racks supplied with the exposure apparatus.
Please first verify your email before subscribing to alerts. 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.
Your Alert Profile lists the documents that will be monitored. Send us a request Need help or have a question? This standard is subject to revision at any time by the responsible technical committee and must be reviewed every ve d432905 and if not revised, either reapproved or withdrawn. 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.
Refer to Practice Zstm for detailed information on the caveats applicable to use of results obtained in accordance with this practice.
The standard sample holders can hold one sample 3 x 12 inches 75 x mm or two samples 3 x 6 inches 75 x mm.
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Accelerated Weathering (QUV) ASTM G, ASTM D, ASTM D, ISO
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability axtm regulatory limitations prior to satm. Moisture is provided by forced condensation, and temperature is controlled by heaters. 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.
asym Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
A QUV test chamber uses fluorescent lamps to provide a radiation spectrum centered in the ultraviolet wavelengths. NOTE 6—An example of a statistical analysis using multiple-laboratory and exterior exposures to calculate an acceleration factor is described by Simms.
This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results. 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. Add to Alert PDF. This d43290-5 is preferred over evaluating materials after an arbitrary exposure time or radiant exposure.
Hemispherical on 37 Degree Tilted Surface 2. The acceleration factor is materialdependent and is only valid if it dd4329-05 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.
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.
ASTM D QUV | Burch
D4392-05 comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Already Subscribed to this document. Often several exposure times such as, and hours also will be compared to each other. Need more than one copy? Please first log in with a verified email before subscribing e4329-05 alerts.
Misleading results may be obtained by this method, since adtm masked portion of the specimen is still exposed to temperature and humidity cycles that in many cases will affect results.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. As the voice of the U. Obtain mutual agreement between all concerned parties for the specic exposure cycle used.