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ASTM D6662 - 22
Standard Specification for Polyolefin-Based Plastic Lumber Decking Boards
| Fecha edición: |
2022-04-01
En Vigor
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|---|---|
| Idiomas disponibles: | Inglés |
| Resumen: | This specification covers polyolefin-based plastic lumber products for use as exterior residential decking boards. Plastic lumber products are currently made predominantly with recycled polyolefin plastics (in particular high-density polyethylene) where the products are more or less non-homogenous in the cross-section. However, this specification is also potentially applicable to similar manufactured plastic products made from other plastic and plastic composite materials that have non-homogenous cross-sections. Performance requirements to which the products should adhere to are flexural properties (allowable flexural stress, and effective modulus of elasticity and adjustment for creep), dimensional stability during thermal expansion, weatherability (surface appearance and flexural property changes, and hygrothermal cycling), fire properties, and slip resistance. Also detailed here is a procedure to calculate recommended span lengths for spacing of support joists. |
| Keywords: | plastic lumber; plastic decking; recycled plastics; residential decks; |
| Scope: | 1.1 This specification covers polyolefin-based plastic lumber products for use as exterior residential decking boards. 1.2 Plastic lumber products are currently made predominantly with recycled polyolefin plastics (in particular high-density polyethylene) where the products are more or less non-homogenous in the cross-section. However, this specification is also potentially applicable to similar manufactured plastic products made from other plastic and plastic composite materials that have non-homogenous cross-sections. 1.3 This specification details a procedure to calculate recommended span lengths for spacing of support joists. This procedure was developed using experimental data from a typical unreinforced plastic lumber made predominantly from recycled high-density polyethylene. The methodology to develop span lengths for other types and compositions of plastic lumber is detailed in Appendix X1 of this standard. 1.4 The values are stated in inch-pound units, as these are currently the most common units used by the construction industry. Equivalent SI units are indicated in parentheses. However, the units stated for irradiance exposure in the weatherability section (6.3) are in SI units as these are the units commonly used for testing of this type. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Note 1: There is no similar or equivalent ISO Standard. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
| ICS: | 91.100.99 - Otros materiales de construcción |
| CTN: | D20.20 - D20.20 |
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Anulaciones Normas |
Anula a D6662-17 |
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Otras Relaciones |
Es referenciada por D8484 - 25 Es referenciada por D7031-11R19 Es referenciada por E2726_E2726M-12AR17 Es referenciada por E2707-22 Es referenciada por D7032-21 Es referenciada por D7568-23 Es referenciada por D7258-23 Es referenciada por E2957 - 17(2024) |










