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.

Author: Fejar Shakus
Country: Sri Lanka
Language: English (Spanish)
Genre: Technology
Published (Last): 24 October 2012
Pages: 445
PDF File Size: 18.80 Mb
ePub File Size: 15.45 Mb
ISBN: 702-6-59955-866-9
Downloads: 99112
Price: Free* [*Free Regsitration Required]
Uploader: Kazrazil

Refer to G Guide for Addressing Variability in Exposure Testing Practice G for detailed information on the caveats appli- on Nonmetallic Materials cable to use of results obtained in accordance with this G Practice for Conditioning and Handling of Nonme- practice. The values in parentheses are given for information only. Warning— Plastics Variation in results may be expected when operating conditions E Practice for Conducting an Interlaboratory Study to are varied within the accepted limits of this practice.

The exposure used in D Practice for Calculating Property Retention Index this practice is not intended to simulate the deterioration caused of Plastics by localized weather phenomena, such as, atmospheric pollu- D Practice for Enclosed Carbon-Arc Exposures of tion, biological attack, and saltwater exposure.

You may delete a document from your Alert Profile at any time. Apparatus for Exposure of Nonmetallic Materials 1. This standard is not included in any packages. If light and dark periods are employed, conducted in accordance with this practice has not been report the relative humidity set point for each period. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.

Conduct these lengths in which the measurements were made. Do not report irradiance or radiant exposure unless 8. Current edition approved July 1, Need more than one copy? 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. Apparatus and humidity cycles that in many cases will affect results. Therefore, no reference to the use of this practice shall be made unless accompanied by a report prepared in accordance with Section 9 that describes the specific operating conditions used.

  ACAULOSPORA SCROBICULATA PDF

Note 1 — This practice is d1949 equivalent to ISO 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. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. 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 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.

This practice also covers the preparation of test specimens, the test conditions suited for coatings, and the evaluation of test results. V1499 the document is revised or amended, you will be notified by email. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 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 standard is also available to be included in Standards Subscriptions. Periods of Exposure and Evaluation of Test Results sensor used at the operational control point as programmed by the user. The type and rate of degradation and the performance rankings produced by exposures d14499 filtered open-flame carbon-arcs can be e1499 different from those produced by exposures to other types of laboratory light sources.

If the irradiance at any position within the exposure 6. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Note 2 — 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 Enclosed carbon-arc exposures of plastics are described in Practice Dand in Gwhich gives requirements for exposing nonmetallic materials in enclosed carbon-arc devices.

  EBAYSDFORUM2006 11 29 PDF

ASTM D 操纵塑料暴露用曝光和曝水装置(碳弧型).pdf全文-调研报告-在线文档

Additional intervals and methods of wetting, by spray, condensation, or immersion, or a combination of these, may be substituted upon 4 Fischer, R. The set point is the target condition for the 8. Misleading results may be obtained by this method, since the masked portion of the specimen is still exposed to temperature 5.

When the test specimens cate specimens of each test and control material. Combining values from the two systems may result in non-conformance with the standard. When a single exposure period is light with water sprayed on the test specimens.

When necessary, to provide 7. It is recommended Instrumental measurements are recommended whenever possible.

Do not asmt arbitrary acceleration factors exposure. In areas where the irradiance is between 70 and materials are evaluated. Refer to Practice G for detailed information on the caveats applicable to use of results obtained in accordance with this practice. Refer to Practice G for detailed information on the caveats applicable to use of results obtained according to this practice.

There was a problem providing the content you requested

This practice is intended to induce property changes associated with end-use conditions, including the effects of sunlight, moisture, and heat. It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results. This unexposed surface must not be cerned parties must agree on the control material used. Link to Active This link will always route to the current Active version of the standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

Link to Active This link will always route to the current Active version of the standard. For light intervals less than 30 min, the maximum black 8. Table 1 describes d14999 used test conditions. When this type of test is required, omit the period the disagreement before continuing.