ASTM D5894 PDF

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. To determine weathering and corrosion resistance according to test methods ASTM D and ISO , paint manufacturers and buyers can use the.

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Link to Active This link will always route to the current Active version of the standard. Results obtained from exposures conducted according to this practice qstm be considered as representative of actual outdoor exposures only when the degree of rank correlation has been established for the specific materials being tested. It does not specify specimen preparation nor evaluation of results. The acceleration factor also varies depending on the variability in rate of degradation in the laboratory test and in actual outdoor exposure.

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This practice is intended to provide a more realistic simulation of the interaction of these factors than is found in traditional tests with continuous exposure to a static set of corrosive conditions. The relative durability of materials in actual outdoor service can be very different in different locations because d58944 differences in UV radiation, time of wetness, temperature, pollutants, and other factors.

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 the same test condition. No other units of measurement are included in this standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Historical Version s – view previous versions of standard.

Therefore, even if results from a specific artificial test condition are found to be useful for comparing the relative durability of materials ashm in a particular exterior environment, it cannot be assumed that they will be useful for determining relative durability for a different environment.

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Different materials and different formulations of the same material can have significantly different acceleration factors. These factors frequently have a synergistic effect on one another. 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.