ASTM D4329-05 PDF

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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Subscription pricing is determined by: Aastm us a request Wilton UK: Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.

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. The standardized time period needs to consider conditioning prior to testing. Current edition approved July 15, Precision and Bias ASTM International takes no position respecting the validity of any patent rights asgm in connection with any item mentioned in this standard.

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ASTM D – 05 Standard Practice for Fluorescent UV Exposure of Plastics

Last previous edition approved in as D – Where practical, it is recommended that specimens be sized to t specimen holders and racks supplied with the exposure apparatus. All concerned parties must agree on the control wstm used.

Typically, flat plaques or disks are used for accelerated weathering studies. Assurance Enabling you to identify and mitigate the d429-05 risk in your operations, supply chains and business processes.

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A superscript epsilon e indicates an editorial change since the last revision or reapproval. When specimens are removed d4329-50 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.

ASTM D-4329-05 QUV

Auditing Consulting Sourcing Training. No direct correlation can be made between accelerated weathering duration and actual outdoor exposure duration. This unexposed surface must not be used as part of the test area.

Certification Formally confirming that your products and services meet all trusted external and internal standards. Often several exposure times such as, and e4329-05 also will be compared to each other. 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.

Standards can be obtained from d43290-5 standard authorities. Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries.

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Hemispherical on 37 Degree Tilted Surface 2. Need more than one copy? It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results.

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. Refer to Practice G for detailed information on the caveats applicable to use of results obtained in accordance with this practice. 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 exposed specimens with the le specimen may not be valid.

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It is recommended that deionized water be used for water used to produce condensation.

ASTM D QUV | Burch

Instrumental measurements are recommended whenever possible. Measurements visual or instrumental should be made within a standardized time period or as agreed upon between the interested parties. Add to Alert PDF. Warning— Variation in results may be expected when operating conditions are varied within the accepted limits of this practice.

Obtain mutual agreement between all concerned parties for the specic exposure cycle used. Do not use arbitrary acceleration d43229-05 relating time in an exposure conducted in accordance with this practice and time in an outdoor environment because they can give erroneous information. Need help or have a question?

If the document is revised or amended, you will be notified by email.