ASTM D4587 PDF

ASTM D4587 PDF

ASTM D defines fluorescent UV and condensation exposures of paint and related coatings,equivalent to ISO This standard is issued under the fixed designation D; the number 1 This practice is under the jurisdiction of ASTM Committee D01 on Paint and. Related. ASTM D Standard Practice for Fluorescent UV-Condensation Exposures of Paint and Related Coatings CONTAINED IN VOL. , Outlines test.

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Often several exposure times such as, and hours also will be compared to each other.

Your comments will receive adtm consideration at a meeting of the responsible technical committee, which you may attend.

Additional intervals and periods of condensation may be substituted upon agreement among the concerned parties. Assurance Testing Inspection Certification.

How is it tested? Table 1 describes commonly used test conditions. Do not use this covered area of the specimen as part of the test area. A QUV test chamber uses fluorescent lamps to provide wstm radiation spectrum centered in the ultraviolet wavelengths. Certification Formally confirming that your products and services meet all trusted external and internal standards.

Additional exposure cycles are described in Practice G Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.

Refer to Practice G for more information about the construction and differences between uninsulated and d487 black panels.

Attach porous specimens to a solid backing such as aluminum that can act as a vapor barrier. However, for users of equipment made by another manufacturer, the irradiance control system did not have the measurement inaccuracies described above, so running at the new set points will represent a change in the actual irradiance of the test.

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Interlaboratory comparisons are valid only when all laboratories use the same design of fluorescent UV device, lamp, and exposure conditions. NOTE 9—An example of a statistical analysis using multiple laboratory and exterior exposures to calculate an acceleration factor is described by J.

A number in parentheses indicates the year of last reapproval.

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. Typically, flat plaques or disks are used for accelerated weathering studies.

Control of ambient temperature is particularly critical when one apparatus is stacked above another, because the heat generated from the lower unit can interfere with the operation of the units above. The measurement data used to establish these set points was inaccurate, due to an error in calibration on the part of one manufacturer.

ASTM D _UV_resistance_百度文库

F SAE J describes the test used in many automotive speci? Refer to Practice G for detailed information asym the caveats applicable to use of results obtained according to this practice. Send us a request Need help or have a question? This practice is intended to induce property changes associated with end-use conditions, including the effects of sunlight, moisture, and heat.

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Other irradiance levels may be used, but must be described in the report. Select panel sizes suitable for use with the exposure apparatus. Seal any holes in specimens larger than 2 mm 0. Link to Active This link will asfm route to the current Active version of the standard. 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.

Precision and Bias Formally confirming that your products and services meet all trusted external and internal standards. Adherence to the standard is mandatory across the GCC region and globally.

All concerned parties must agree on the speci? Originally approved in Reproducibility dd4587 test results between laboratories has been shown to be good when the stability of materials is evaluated in terms of performance ranking compared to other materials or to a control. Consider product use requirements when selecting appropriate methods.

ASTM D4587

Accelerated weathering provides d45887 samples for comparison to unexposed control samples. NOTE 1—Previous versions of this practice referenced? 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.