ASTM D4674-02a(2010)..
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ASTM D1435-13
Standard Practice for Outdoor Weathering of Plastics
Automaticky preložený názov:
Štandardná prax pre vonkajšie zvetrávaním plastov
NORMA vydaná dňa 1.6.2013
Informácie o norme:
Označenie normy: ASTM D1435-13
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.6.2013
Kód tovaru: NS-17277
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM D1435-13 :
Keywords:
exposure, natural weathering, outdoor weathering, plastics, ICS Number Code 83.080.01 (Plastics in general)
Doplňujúce informácie
| Significance and Use | ||||||||||||||||||
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4.1 Tests conducted in accordance with this practice are used to evaluate the stability of plastic materials when they are exposed outdoors. The relative durability of plastics in outdoor use can be very different depending on the location of the exposure because of differences in ultraviolet (UV) radiation, time of wetness, temperature, pollutants, and other factors. It cannot be assumed, therefore, that results from one exposure in a single location will be useful for determining relative durability in a different location. Exposures in several locations with different climates that represent a broad range of anticipated service conditions are recommended. 4.1.1 Because of year-to-year climatological variations, results from a single exposure test cannot be used to predict the absolute rate at which a material degrades. Several years of repeat exposures are needed to get an average test result for a given location. 4.2 The results of short-term exposure tests can provide an indication of relative outdoor performance, but they should not be used to predict the absolute long-term performance of a material. The results of tests conducted for less than twelve months will depend on the particular season of the year in which they begin. |
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| 1. Scope | ||||||||||||||||||
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1.1 This practice is intended to cover procedures for the exposure of plastic materials to weather. 1.2 This practice is limited to the
method by which the material is to be exposed and the general
procedure to be followed. It is intended for use with finished
articles of commerce as well as with all sizes and shapes of test
specimens.
1.3 Means of evaluation of the effects of weathering will depend on the intended use for the test material. 1.4 The values stated in SI units are to be regarded as the standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.
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ISO 877.2-2009
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Plastics--Methods of exposure to solar radiation--Part 2: Direct weathering and exposure behind glass Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
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Standard Terminology of Solar Energy Conversion
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Standard Practice for Conditioning and Handling of Nonmetallic Materials for Natural and Artificial Weathering Tests
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Standard Terminology Relating to Plastics
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Standard Terminology for Abbreviated Terms Relating to Plastics (Withdrawn 2024)
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Standard Practice for Atmospheric Environmental Exposure Testing of Nonmetallic Materials
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Standard Practice for Conducting Exposures to Daylight Filtered Through Glass
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Standard Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
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Standard Guide for Addressing Variability in Exposure Testing of Nonmetallic Materials |
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