ASTM D4329 PDF

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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It is recommended that deionized water be used for water used to produce condensation. 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 Signicance and Use 4.

Precision and Bias This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results.

This practice is intended to induce property changes associated with end-use conditions, including the effects of asttm solar irradiance, moisture, and heat. Periods of Exposure and Evaluation of Test Results 8. 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. Obtain mutual agreement between all concerned parties for the specic exposure asrm 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.

The values given in brackets are for information only. Ketola and Douglas Grossman, eds.

Link to Active This link will always route to the current Active version of the standard. A number in parentheses indicates the d4239 of last reapproval.

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Suggested aluminum alloys are, or All concerned parties must agree on the specic control material used. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

Need help or have a d329 Do not use arbitrary acceleration factors relating time in an exposure conducted in accordance with this practice and time in an aatm environment because they can give erroneous information. Hemispherical on 37 Degree Tilted Surface 2. Assurance Testing Inspection Certification.

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. The standardized time period needs to consider conditioning prior to testing. This unexposed surface must not be used as part of the test area.

Accelerated Weathering (QUV) ASTM G154, ASTM D4329, ASTM D4587, ISO 4892

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Asstm 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.

Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Your comments will receive careful consideration at a d429 of the responsible technical committee, which you may attend.

ASTM D | Rycobel

Current edition approved July 15, This method is preferred over evaluating materials after an arbitrary exposure time or radiant exposure. Operate the device continuously. Aatm 6—An example of a statistical analysis using multiple-laboratory and exterior exposures to calculate an acceleration factor is described by Simms.

Originally approved in Certification Formally confirming that your products and services meet all trusted external and internal standards. This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results. Send us a request Need help or have a astmm

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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Measure ambient temperature at a maximum distance of mm [6 in.

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. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

Historical Version s – view previous versions of standard. 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 ast, between test and control materials in specications.

The values given in parentheses are for information only.

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

Last previous edition approved in as D – 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 An exposure time that produces a signicant change in one type of material cannot be assumed to be ast, to other types of materials. 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.

A QUV test chamber uses fluorescent lamps to provide a radiation spectrum centered in the ultraviolet wavelengths.