ASTM D1149 PDF

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Full Description 1. The effect of naturally occurring sunlight or light from artificial sources is excluded. Please refer to Note 2. When Test Methods D is cited, or otherwise referenced, a notation shall be included to this effect.

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More D The degree of resistance being judged by the appearance and magnitude of the formation of cracks in the surface of the subject material. Scope 1. The effect of naturally occurring sunlight or light from artificial sources is excluded. Please refer to Note 2. When Test Methods D is cited, or otherwise referenced, a notation shall be included to this effect. Please refer to section 3. These accelerated ozone test methods may not give results which correlate with outdoor exposure tests or service performance.

The values given in parentheses are for information only. Many of the stated SI units are direct conversions from the U. Customary System to accommodate the instrumentation, practices, and procedures that existed prior to the Metric Conversion Act of It may also involve hazardous operations and equipment.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

Test Methods D is also recommended as a source of background information regarding standards involving materials exposed to ozone.

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ASTM D1149

More D Степень устойчивости оцениваться по виду и величине образования трещин на поверхности испытуемого материала. Необходимо обладать методами испытаний, в которых оперативное, ускоренное по времени и сокращенное по воздействию сравнение способности материала противостоять трещинообразованию под воздействием озона может оцениваться эмпирически. Область применения 1. При этом воздействие естественного солнечного света или искусственных источников света в расчет не принимается. Соответствующие ссылки см.

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Kerr Test Methods D is also recommended as a source of background information regarding standards involving materials exposed to ozone. These accelerated ozone test methods may not give results which correlate with outdoor exposure tests or service performance. Samples first should be conditioned at room temperature for days and then they can be exposed to ozone. Work Item s — astm d revisions of this standard.

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More D The degree of resistance being judged by the appearance and magnitude of the formation of cracks in the surface of the subject material. Scope 1. The effect of naturally occurring sunlight or light from artificial sources is excluded. Please refer to Note 2. When Test Methods D is cited, or otherwise referenced, a notation shall be included to this effect.

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