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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Work Item s – proposed revisions of this standard. In devices that do not have a planar exposure area, reposition specimens using a procedure agreed upon by all interested parties.
Link to Active This link will always route dd4587 the current Active version of the standard. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
E Typical uses do not imply that results from exposures of these materials according to the cycle described will correlate to those from actual use conditions. 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 specific operating conditions used.
All references to exposures in accordance with this practice must include a complete description of the test cycle used. Nondestructive instrumental measurements are recommended whenever possible.
Conduct these round robins according to Practice E or D and include a statistically representative sample of all laboratories or organizations that would normally conduct the exposure and property measurement. B The irradiance set point given is typical for devices operated without irradiance control.
If in doubt, users should consult the manufacturer of their device for clari? Practice G 53 has been withdrawn and replaced by Practice Gwhich describes performance criteria for all exposure devices that use laboratory light sources, and by Practice Gwhich gives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. D Temperature is at equilibrium for either an uninsulated or insulated black panel, although the response of the insulated black panel might be slower than that for the uninsulated black panel.
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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. Test results will depend upon the care that is taken to operate the equipment according to Practice G Industrial maintenance coatings G.
NOTE 13—In some cases, 4d587 are conducted by a contracting agency but property tests are astn by the contracting party.
It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results. Measure ambient temperature at a maximum distance of mm 6 in.
Historical Version s – view previous versions of standard. The protective gelcoat serves as the first line of d45877 outdoors against weathering and UV exposures in extreme hot and cold climates.
ASTM D classification test for weather and UV resistance
The measurement data used to establish these set points was inaccurate, due to an error in calibration on the part of one manufacturer. 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.
This practice is intended to induce property changes associated with end-use conditions, including the effects of sunlight, moisture, and heat. An exposure time that produces a signi? Practice Ast 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?
Significant factors include regulation of line voltage, temperature of the room in which the device operates, temperature control, and condition and age of the lamps. How is it tested? No direct correlation can be made between accelerated weathering duration asrm actual outdoor exposure duration.
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. The ability of a paint or coating to resist deterioration of its physical and optical properties caused by exposure to light, heat, and water can be very significant for many applications.
Reproducibility of 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. Seal any holes in specimens larger than 2 mm 0. Validating the specifications, value and safety of your raw materials, products and assets. ASTM D classification defines the standard practice for fluorescent UV and condensation exposures of paint and zstm coatings.
This practice also covers the preparation of test specimens, and the evaluation of test results. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. This cycle may not adequately simulate the effects of outdoor exposure. NOTE 11—Fischer illustrates use of rank comparison between test and control materials in speci?
Baked coatings Radiation-cured coatings All other coatings 24 h 24 h 7 days 5.