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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Assurance Testing Inspection Certification. Standards can be obtained from appropriate standard authorities.
Suggested aluminum alloys are, or Add to Alert PDF. We have no amendments or corrections for this standard.
ASTM D-4329-05 QUV
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by the responsible technical committee and must be reviewed every ve years and if not revised, either reapproved or withdrawn. A number in parentheses indicates the year of last reapproval.
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NOTE 7—For some materials, changes may continue after the specimen has been removed from the exposure apparatus.
Current edition approved July atm, 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.
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.
Calculate retention of characteristic property in x4329-05 with Practice D when it is reported. Typically, flat plaques or disks are used for accelerated weathering studies. 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.
Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. For measurements 8 Fischer, R. Hemispherical on 37 Satm Tilted Surface 2. 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.
Operate the device continuously. Last previous edition approved in as D – For instance, if two specimens are stacked vertically in each holder, then the top and bottom specimens should switch places halfway through the test.
Moisture is provided by forced condensation, and temperature is controlled by heaters. Proceed to Checkout Continue Shopping.
Accelerated Weathering (QUV) ASTM G, ASTM D, ASTM D, ISO
Accelerated weathering provides exposed samples for comparison to unexposed control samples. Originally approved in All concerned parties must agree on the control material used.
Often several exposure times such as, and hours also will be compared to each other. 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.
Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business aatm. This method is preferred over evaluating materials after an arbitrary exposure time or radiant exposure. This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results.
NOTE 6—An example of a statistical analysis using multiple-laboratory and exterior exposures to calculate an acceleration factor is described by Simms. Precision and Bias D4329-005 practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results. The values given in brackets are for information only. Signicant factors include regulation of line voltage, temperature of the room in which the device operates, temperature control, and condition and age of the lamp.
Accelerated Weathering (QUV) ASTM G154, ASTM D4329, ASTM D4587, ISO 4892
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. Subscription pricing is determined by: Misleading results may be obtained by this method, since the masked portion of the 4d329-05 is still exposed to temperature and humidity cycles that in many cases will affect results.
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