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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Consider product use requirements when selecting asgm methods. Current edition approved July 1, Where is it tested? 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.

ASTM D classification test for weather and UV resistance

F SAE J describes the test used in many automotive speci? A superscript epsilon e indicates an editorial change since the last revision or reapproval. The spectral power distribution of light from fluorescent UV lamps is significantly different from that produced in light and water exposure devices using other light sources.

Reproducibility of test results between laboratories has d587 shown to be good when the stability of materials is evaluated in terms of performance ranking compared to other materials or to a control.

Inspection Validating the specifications, value and safety of your raw materials, products and assets. It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results.

ASTM D4587

Moisture is provided by forced condensation, and temperature is controlled by heaters. Additional f4587 cycles are described in Practice G Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Practice G 53 has been withdrawn and replaced by Practice Gwhich describes performance criteria for all exposure devices that use laboratory light sources, and by Practice Gwhich gives requirements for exposing nonmetallic materials in?

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Significant factors include regulation of line voltage, temperature of ast room in which the device operates, temperature control, and condition and age of the lamps. Practice G 53 has been withdrawn and replaced by Practice Gwhich describes performance criteria for all exposure devices that use laboratory light sources, and by Practice Gwhich gives requirements for exposing nonmetallic materials in fluorescent UV devices.

This practice also covers the preparation of test specimens, and the evaluation of test results. 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.

asmt This condition requires that the procedures described in 8. Thereafter the simulation, the GRP laminate is physically inspected and compared to a control specimen. It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results.

Accelerated weathering simulates damaging effects of long term outdoor exposure of materials and dd4587. Link to Active This link will always route to the current Active version of the standard. This practice is intended to induce property changes associated with end-use conditions, including the effects of sunlight, moisture, and heat.

Link to Active This link will always route to the current Active version of the standard. All specimens shall be exposed simultaneously in the same device.

ASTM D _UV_resistance_百度文库

Measurements visual or instrumental should be made within a standardized d45887 period or as agreed upon between interested parties. Parts may be accommodated depending on size. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

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Practice has been withdrawn and replaced by Practice Gwhich describes performance criteria for all exposure devices that use laboratory light sources, and by Practice Gwhich gives requirements for exposing nonmetallic materials in fluorescent UV devices.

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When specimens are removed f4587 the exposure apparatus for 24 h or more, then returned for additional exposure, report the elapsed time as noted under Section Note 1—Previous versions of this practice referenced fluorescent Qstm devices described by Practicewhich described very specific equipment designs. Nondestructive instrumental measurements are recommended whenever possible. G Historical convention has established this as a very commonly used test cycle.

Therefore, no reference to the use of this practice shall be made unless accompanied by a report prepared according to Section 10 that describes the speci?

Nondestructive methods are preferred because panels so measured need not be repaired. Typically, flat plaques or disks are used for accelerated weathering studies.

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

Send us a request Need help or have a question? Where retention of characteristic property is reported, calculate results according to Practice D The standard is primarily based on the external integrity and appearance of our GRP enclosures when exposed to outdoor conditions over an extended period.

Do not use this satm area of the specimen as part of the test d457. Originally approved in This practice is intended to induce property changes associated with end-use conditions, including the effects of sunlight, moisture, and heat.