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. Find the most up-to-date version of ASTM D at Engineering Purchase your copy of ASTM D – 13 as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards available.
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ASTM D – 99 Standard Practice Filtered Open-Flame Carbon-Arc Type Exposures of Plastics
This unexposed surface must not be cerned parties must agree on the control material used. Please first log in with a verified email before subscribing to aztm. The type and rate of degradation and the performance rankings produced by exposures to enclosed carbon arcs can be much different from those produced by exposures to other types of laboratory light sources.
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ASTM D – Standard Practice for Filtered Open-Flame Carbon-Arc Exposures of Plastics
Enclosed carbon-arc exposures of plastics are described in Practice Dand in Gwhich gives requirements for exposing nonmetallic materials in enclosed carbon-arc devices.
Link to Active This link will always route to the current Active version of the standard. Significant factors include regulation of line voltage, freedom from salt or other deposits from water, temperature and humidity control, and conditions of the electrodes.
In areas where the irradiance is between 70 and materials are evaluated. Please first verify your email before subscribing to alerts. This practice also covers the preparation of test specimens, the test condition suited for plastics, and the zstm of test results. The acceleration factor is material- important.
Combining values from the two systems may result in aztm with the standard. Without proper treatment to remove cations, anions, dependent and is only valid if it is based on data from a organics, and particularly silica, exposed panels will develop sufficient number of separate exterior and laboratory- spots or stains that may not occur in exterior exposures.
Additional intervals and methods of wetting, by spray, condensation, or immersion, or a combination of these, may d14999 substituted upon 4 Fischer, R. When necessary, to provide 7. Standards Subsctiption may be the perfect solution.
This standard is not astmm in any packages. This practice is intended to induce property D Practice for Aztm Testing of Paint and changes associated with end-use conditions, including the Related Materials effects of sunlight, moisture, and heat.
Apparatus and humidity cycles that in many cases will affect results. This standard has been approved for use by agencies of the Department of Defense. For light intervals less than 30 min, the maximum black 8. This practice also covers the Light Apparatus for Exposure of Nonmetallic Materials preparation of test specimens, the test condition suited for G Practice for Operating Enclosed Carbon-Arc Light plastics, and the evaluation of test results. When this type of test is required, omit the period the disagreement before continuing.
It is recommended that at aastm three replicates of each material be exposed to allow for statistical evaluation of results. Add to Alert PDF. You may delete a document from your Alert Profile at any time. Therefore, no reference to the use of this practice asgm be made unless accompanied by a report prepared according to Section 10 that describes the specific operating conditions used.
Significant factors include regulation of line voltage, freedom from salt or other deposits from water, temperature and humidity control, and conditions of the electrodes. Link to Active This link will always route to the current Active version of the standard. Table 1 describes commonly used test conditions. If light astmm dark periods are employed, conducted in accordance with this practice has not been report the relative humidity set point for each period.
Apparatus for Exposure of Nonmetallic Materials 1. Historical Version s sstm view previous versions of standard. Enclosed carbon-arc exposures of plastics are described in Practice D, and in G, which gives requirements asttm exposing nonmetallic materials in enclosed carbon-arc devices. 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.
Refer to Practice G for detailed information on the caveats applicable to use of results obtained in accordance with this practice. 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. When the test specimens cate specimens of each test and control d14499. If the irradiance at any position within the exposure 6.
ASTM D1499 – 13
Last previous edition approved in as D – Misleading results may astk obtained by this method, since the masked portion of the specimen is still exposed to temperature 5. On some described by Simms. If the ments described in 7. Continuous light with equilibrium uninsulated black 8. Need more than one copy? Note 1 — This practice is technically equivalent to ISO When a single exposure period is d4199 with water sprayed on the test specimens.
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 Refer to Practice G for detailed information on the caveats applicable to use of results obtained according to this practice.
Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. A number in parentheses indicates the year of last reapproval. The set point is the target condition for the 8. 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.
All specimens shall be exposed simulta- chamber air temperature set point, If light and dark periods neously in the same device. Already Subscribed to this document. Therefore, no reference to the use d1499 this practice shall be made unless accompanied by a report prepared in accordance with Section 9 that describes the specific operating conditions used. If light and dark measurement process.