ASTM D is a cyclic salt fog combined with a UV exposure test sequence for painted metal samples offered by Micom Laboratories. 13 Aug This standard is issued under the fixed designation D ; the 1 This practice is under the jurisdiction of ASTM Committee D01 on Paint and. 25 Aug ASTM D_建筑/土木_工程科技_专业资料。Designation: D – 05 Standard Practice for Cyclic Salt Fog/UV Exposure of Painted.
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Link to Active This link will astm d5894 route to the current Wstm version of the standard. Because of possible variability between the same type of exposure devices, it is not recommended to compare the amount of degradation in materials exposed for the same duration at separate times, or in separate devices running astm d5894 same test condition.
Historical Version s astm d5894 view previous versions of standard. The acceleration factor also varies depending on the variability in rate of degradation in the laboratory test and in actual outdoor exposure.
Different materials and different formulations of the same material can have significantly different acceleration factors. This practice is intended to provide a more realistic astm d5894 of the interaction of these factors than is astm d5894 in traditional tests with continuous exposure to a static set of corrosive conditions. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of d8594 standard.
These factors frequently have a synergistic effect on one another. Therefore, even if results from a specific artificial test condition are found to be useful for comparing the relative durability of materials exposed in a particular exterior environment, it cannot be assumed that astm d5894 will be useful for determining relative durability for a different environment.
The relative durability of materials in actual outdoor service can be very different in different locations because of differences in UV radiation, time of astm d5894, temperature, pollutants, and other factors.
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.
It does not specify specimen preparation nor evaluation of results. Astm d5894 obtained from exposures conducted according to astm d5894 practice can be considered as representative of actual outdoor exposures only when the degree of rank correlation has been established for the specific materials being tested. Asfm other units of measurement are astn in this standard.