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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NOTE 2—Additional information on sources of variability and on strategies for addressing variability in the design, execution, and data analysis of zstm exposure tests is found in Guide G Do not place the apparatus near a heat source such as d3429-05 oven.
It is recommended that deionized water be used for water used to produce condensation. Warning— Variation in results may be expected when operating conditions are varied within the accepted limits of this practice.
ASTM D – 05 Standard Practice for Fluorescent UV Exposure of Plastics
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It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results. However, performance comparisons under the controlled conditions of accelerated weathering can be compared to documented performance of materials and coatings that have experienced extended periods of end use exposure. Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
Precision and Bias Subscription pricing is determined by: 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. Send us a request Wilton UK: We have no amendments or corrections for this standard. All concerned parties must agree on the control material 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.
Instrumental measurements are recommended whenever possible.
Accelerated Weathering (QUV) ASTM G154, ASTM D4329, ASTM D4587, ISO 4892
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Unless supplied with a specic backing as an integral part of the test, specimens shall be mounted so that only the minimum specimen area required for support by the holder shall be covered. All concerned parties must agree on the specic control material used. This unexposed surface must not be used as part of the test area. Obtain mutual agreement between all concerned parties for the specic exposure cycle used.
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ASTM D QUV | Burch
For measurements 8 Fischer, R. Moisture is provided by forced condensation, and temperature is controlled by heaters. 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.
This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
Signicance and Use 4. The standardized time period needs to consider conditioning prior to testing. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. This standard is also available to be included in Standards Subscriptions.
Inspection Validating the specifications, value and safety of your raw materials, products and assets. Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries.
Refer to Practice G for detailed information on the axtm applicable to use of results obtained in accordance with this practice. Certification Formally confirming that your products and services meet all trusted external and internal standards.
Assurance Testing Inspection Certification. Your Alert Profile lists the documents that will ast, monitored. 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.
An exposure time that produces a signicant change in one type of material cannot be assumed to be applicable to other types of materials.
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. 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.
A number in parentheses indicates the year of last reapproval. D43299-05 can be obtained from appropriate standard authorities. 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.
Calculate retention of characteristic property aastm accordance with Practice D when it is reported. Validating the d4239-05, value and safety of your raw materials, products and assets.