ASTM D tests for fluorescent UV exposure of plastics. It covers specific procedures and test conditions based on practices ASTM G and ASTM G This standard is issued under the fixed designation D ; the number 1 This practice is under the jurisdiction of ASTM Committee D on Plastics. ASTM D – Designation: D – 05 Standard Practice for Fluorescent UV Exposure of Pla.
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All specimens shall be exposed simultaneously in the same device. The values given in parentheses are for information only. Global Reach Intertek is the industry leader with over 42, people in d44329, locations in over countries. Validating the specifications, value and safety of your raw materials, products and assets.
Signicant factors include regulation of line voltage, temperature of d3429 room in which the device operates, temperature control, and condition and age of the lamp. This method is preferred over evaluating materials after an arbitrary exposure time or radiant exposure. Attach porous specimens to a solid backing such as aluminum that can act as a vapor barrier.
Auditing Consulting Sourcing Training. Ketola and Douglas Grossman, eds. Measure ambient temperature at a maximum distance of mm [6 in. Formally confirming that your products and services meet all trusted external and internal standards. 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.
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. This unexposed surface must not be used as part of the test area. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
Accelerated Weathering (QUV) ASTM G154, ASTM D4329, ASTM D4587, ISO 4892
Through our network of over 43, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions to a wide range of industries around the world. Where practical, it is recommended that specimens be sized to t specimen holders and racks supplied with the exposure apparatus. Signicance and Use 4. Moisture is provided by forced condensation, and temperature is controlled by heaters.
The acceleration factor is d429 and is only valid if it is based on data from a sufficient number of separate exterior and laboratoryaccelerated exposures so that results used to relate times v4329 failure in each exposure can be analyzed using statistical methods.
Parts may be accommodated depending on size. This practice also covers the preparation of test specimens, the test conditions best suited astk plastics, and the evaluation asstm test results. Last previous edition approved in as D – 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. Send us a request Need help or have a question?
ASTM D – UV EXPOSURE OF PLASTICS
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Accelerated weathering provides exposed samples for comparison to unexposed control samples.
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.
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. 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.
Inspection Validating the specifications, value and safety of your raw materials, products and assets. Precision and Bias Link to Active This link will always route to the current Active version of the standard.
Current edition approved July 15, For measurements 8 Fischer, R. Certification Formally confirming that your products and services meet all trusted external and internal standards. 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 Calculate retention of characteristic property in accordance with Practice D when it is reported.
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.
A QUV test chamber uses fluorescent lamps to provide a radiation spectrum centered in the ultraviolet wavelengths. Unless supplied with a specic backing as an integral part of the test, specimens shall be mounted so that only the minimum specimen area astj for support by the holder shall be covered. Historical Version s – view previous versions of standard.
Suggested aluminum alloys are, or Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.