Astm g151 free download






















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Please note that the process of scanning, OCR, and rekeying might introduce errors. In addition, standards bodies will frequently issue errata or reissue standards over time and governmental bodies may change which standards they incorporate to law. You are urged to check with the standards organizations or governmental authorities for further information and access to definitive versions of these important laws.

Criminal penalties may apply for noncompliance. Uploaded by Public Resource on June 16, Internet Archive's 25th Anniversary Logo. Differences in the spectral distribution between the laboratory light source h solar radiation. Information regarding the reporting of results from exposure testing of plastic materials is described in Practice D There are astm g number of factors that may decrease the degree of correlation between accelerated tests using laboratory light sources and exterior exposures.

Register or Log astm g for direct access to additional content. Note 1—Carbon-arc, xenon arc, and fluorescent UV exposures were also described in Practices, and which referred to very aatm equipment designs. Note 5-Definitions for control and reference material that are appropriate to weathering aastm are found in Terminology G Absence of biological agents or pollutants.

For example, detailed information covering exposures in devices that use open flame carbon arc, enclosed carbon arc, xenon arc astm g fluorescent UV light source are found in Practices G, G, G, and G respectively. The test material astm g is astm g The relative durability of materials in astm g use conditions can be very different in different locations because of differences in UV radiation, time of wetness, relative humidity, temperature, pollutants, and other factors.

Even though it is very tempting, calculation of an acceleration factor astm g x h or megajoules of radiant exposure in a laboratory accelerated test to y months or years of exterior exposure is not recommended.

Test conditions where specimens are exposed continuously to light when actual use conditions provide alternate periods of f and dark. More specific information on how each factor may alter stability ranking of astm g is given in Appendix X1.

Note 2—Guide G provides information for addressing variability in exposure testing of astm g materials. How will we use your data? Will Smithers share my data? How will Smithers protect my data and keep it secure? How long will Smithers keep my data for? Your Legal Data Protection Rights At any point while we are in possession of or processing your personal data you can exercise all of the rights available to you under the governing data protection law.

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