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):||7 July 2010|
|PDF File Size:||10.90 Mb|
|ePub File Size:||19.4 Mb|
|Price:||Free* [*Free Regsitration Required]|
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. Refer to Practice G for detailed information on the caveats applicable aatm use of results obtained in accordance with this practice.
ASTM D-4329-05 QUV
Expose replicates of the test specimen and the control specimen so that statistically signicant performance xstm can be determined NOTE 8—Fischer illustrates use of rank comparison between test and control materials in specications. Parts may be accommodated depending on size. Need more d4329-5 one copy? 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.
Individual reprints single or multiple copies of this standard may d432-05 obtained by contacting ASTM at the above address or at phonefaxor service astm. Please first verify your email before subscribing to alerts. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
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. Standards can be obtained from appropriate standard authorities. A QUV test chamber uses fluorescent lamps to provide a radiation spectrum centered in the ultraviolet wavelengths.
Ketola and Douglas Grossman, eds. Send us a request Need help or have a question?
Misleading results atsm 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. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Your Alert Profile lists the documents that will be monitored. It is recommended that deionized water be used for water used to produce condensation.
This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results. Follow the purity d4329-055 in Practice G for water sprayed on specimen surfaces. This unexposed surface must not be used as part of the test area.
Where practical, it is recommended that specimens be sized to t specimen holders and racks supplied with the exposure apparatus. You may delete a document from your Alert Profile at any time. Inspection Validating the specifications, value and safety of your raw materials, products and assets. Auditing Consulting Sourcing Training. All concerned parties must agree on the specic control material used.
Accelerated Weathering (QUV) ASTM G154, ASTM D4329, ASTM D4587, ISO 4892
NOTE 6—An example of a statistical analysis using multiple-laboratory and exterior exposures to calculate an acceleration factor is described by Simms. Measurements visual or instrumental should be made within a standardized time period or as agreed upon between the interested parties. 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 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.
Awtm practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results.
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. A number in parentheses indicates the year of last reapproval. Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries.
Accelerated Weathering (QUV) ASTM G, ASTM D, ASTM D, ISO
Operate the device continuously. Validating the specifications, value and safety of your raw materials, products and assets. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and d429-05 processes. Formally confirming that your products and services meet all trusted external and internal standards.
ASTM D – 05 Standard Practice for Fluorescent UV Exposure of Plastics
If the document is revised or amended, you will be notified by email. Your comments are invited either for revision of asrm standard or for additional standards and should be addressed to ASTM International Headquarters.
The values given in brackets are for information only. Last previous edition approved in as D – Originally approved in Signicant factors include d432-05 of line voltage, temperature of the room in which the device operates, temperature control, and condition and age of the lamp.
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. NOTE 7—For some materials, changes may continue after the specimen has been removed from the exposure apparatus. This standard is not included in any packages.
For measurements 8 Fischer, R. It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results. It is the responsibility of the user of this standard to establish appropriate safety and s4329-05 practices and determine the applicability of regulatory limitations prior to use.