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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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. A The cycles described are not listed in any order indicating importance, and are not necessarily recommended for the applications listed.
This practice also covers the preparation of test specimens, and the evaluation of test results. Inspection Validating the specifications, value and safety of your raw materials, products and assets. The values given in parentheses are for information only.
ASTM D – UV EXPOSURE OF PLATINGS
What is the test? 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.
The type and rate of degradation and the performance rankings produced in exposures to fluorescent UV lamps can be much different from those produced by exposures to other types of laboratory light sources. 4d587 Item s – proposed revisions of this standard.
Additional exposure cycles are described in Practice G Link to Active This link will always route to the current Active version of the standard.
It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results. Attach porous specimens to a solid backing such as aluminum that can act as a vapor barrier.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Accelerated Weathering (QUV) ASTM G154, ASTM D4329, ASTM D4587, ISO 4892
Standards can be obtained from appropriate standard authorities. When specimens are removed from the exposure apparatus for 24 h or more, then returned for additional exposure, report the elapsed time as noted under Section The values given in parentheses are for information only. A QUV test chamber uses fluorescent lamps to provide a radiation spectrum centered in the ultraviolet wavelengths.
The standard is primarily based on the external integrity and appearance of our GRP enclosures when exposed to outdoor conditions over an extended period.
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. Refer to Practice G for more information about the construction and differences between uninsulated and insulated black panels.
Work Item s – proposed revisions of this standard. 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.
This cycle may not adequately simulate the effects of outdoor exposure. 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.
ASTM D _UV_resistance_百度文库
The previous set points were 0. NOTE 3—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 Last previous edition asm in as D — Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
NOTE 13—In some cases, exposures are conducted by a contracting agency but property tests are conducted by the contracting party. NOTE 9—An example of a statistical analysis using multiple laboratory and exterior exposures to calculate an acceleration factor is described by J.
ast, A number in parentheses indicates the year of last reapproval. Nondestructive methods are preferred because panels so measured need not be repaired. The standard sample holders can asm one sample 3 x 12 inches 75 x mm or two samples 3 x 6 inches 75 x mm.
Do not use arbitrary acceleration factors relating time in an exposure conducted according to this practice and time in an outdoor environment because they can give erroneous information.