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Description of ASTM-D1435 2013ASTM D1435 - 13Standard Practice for Outdoor Weathering of PlasticsActive Standard ASTM D1435 | Developed by Subcommittee: D20.50 Book of Standards Volume: 08.01 ASTM D1435Significance and Use 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. 1. Scope 1.1 This practice is intended to cover procedures for the exposure of plastic materials to weather.
Note 1 See Practice G24 for aging under glass.
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.
Note 2 This standard and ISO 877.2-2009 , Method A, are technically equivalent.
ASTM Standards D883 Terminology Relating to Plastics D1600 Terminology for Abbreviated Terms Relating to Plastics E772 Terminology of Solar Energy Conversion G7 Practice for Atmospheric Environmental Exposure Testing of Nonmetallic Materials G24 Practice for Conducting Exposures to Daylight Filtered Through Glass G84 Practice for Measurement of Time-of-Wetness on Surfaces Exposed to Wetting Conditions as in Atmospheric Corrosion Testing G113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials G141 Guide for Addressing Variability in Exposure Testing of Nonmetallic Materials G147 Practice for Conditioning and Handling of Nonmetallic Materials for Natural and Artificial Weathering Tests ISO Standard ISO877.2-1991 Method A, Methods for Exposure to Direct Weathering, to Weathering Using Glass-Filtered Daylight, and to Intensified Weathering Using Fresnel Mirrors Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.Keywords exposure; natural weathering; outdoor weathering; plastics ; ICS Code ICS Number Code 83.080.01 (Plastics in general) DOI: 10.1520/D1435 ASTM International is a member of CrossRef. ASTM D1435The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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