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ASTM D7568-12

(Specification)

Standard Specification for Polyethylene-Based Structural-Grade Plastic Lumber for Outdoor Applications

Standard Specification for Polyethylene-Based Structural-Grade Plastic Lumber for Outdoor Applications

SCOPE
1.1 This specification covers a type of plastic lumber product, defined as polyethylene-based structural-grade plastic lumber (SGPL), for use as main framing members, including joists, stringers, beams, columns; and secondary framing members, including planking, posts and bracing; in outdoor structures such as decks, boardwalks, docks, and platforms.
1.2 This specification is applicable to solid, rectangular SGPL products where polyethylene resin (non cross-linked) is the continuous phase and is at least 50 % of the product (by weight).
1.3 This specification is not applicable to plastic lumber products containing cellulosic materials as additives, fillers or fiber reinforcements.
1.4 SGPL products covered by this specification shall not be used as tensile members.
1.5 SGPL products are produced using several different manufacturing processes. These processes utilize a number of polyethylene resin material systems that include varying proportions of fillers, fiber reinforcements, and other chemical additives.
1.6 Due to thermodynamic effects that result in outer-surface densification during manufacture, SGPL products are typically non-homogeneous in the cross-section. This standard does not address materials that have been modified from their original cross-section.
1.6.1 The cross-section non-homogeneity is addressed in the material property assessments in this document only for applications in which the product cross-section is not modified by cutting, notching, or drilling. For products modified in this manner, additional engineering considerations are required and they are beyond the scope of this document.
1.7 For purposes of this standard, an SGPL product is a specific combination of polyethylene resin, together with fillers, reinforcements, and additives. Each formulation is to be identified as a distinct and different product, to be tested and evaluated separately.
1.8 Diverse and multiple combinations of both virgin and recycled polyethylene material systems are permitted in the manufacture of SGPL products.
1.9 Fiber reinforcements used in SGPL include manufactured materials such as fiberglass (chopped or continuous), carbon, aramid and other polymeric materials.
1.10 A wide variety of chemical additives are typically added to SGPL formulations. Examples include colorants, chemical foaming agents, ultraviolet stabilizers, fire retardants, lubricants, anti-static products, heat stabilizers, and coupling agents.
1.11 Diverse types and combinations of filler systems are permitted in the manufacturing of SGPL products. Fillers that cause the product to fail the requirements of 6.13 are not permitted in the manufacturing of SGPL products.
1.12 In order for a product to be classified as SGPL, it must meet the minimum stress and modulus criteria consistent with the specific product as marked, and additionally the properties specified in Section 6 of this specification.
1.13 This specification pertains to SGPL where any reinforcement is uniformly distributed within the product. When reinforcement is not uniformly distributed, the engineering issues become substantially more complex. For this reason, such products are not covered in this document.
1.14 Products that fail at strains of less than 0.02 (2 %) when tested in flexure in accordance with 6.6 are not compatible with the underlying assumptions of Annex A1 and are beyond the scope of this standard (see Note 1).
Note 1—Calculation of time-dependent properties in Annex A1 is based on the assumption that the product does not fail in a brittle manner. The 2 % strain limit was selected based on the judgment of the task group members that created Annex A1.
1.15 This specification addresses issues relevant to a buyer’s requirements for SGPL products and has therefore been developed in the format of a procurement specification.
1.16 Criteria for design are included as part of this specification for SGPL products.
1.17 Use of...

General Information

Status
Historical
Publication Date
31-May-2012
ICS
83.140.01 - Rubber and plastics products in general
Technical Committee
D20 - Plastics
Drafting Committee
D20.20 - Plastic Lumber
Current Stage
Ref Project

Relations

Replaced By
ASTM D7568-13 - Standard Specification for Polyethylene-Based Structural-Grade Plastic Lumber for Outdoor Applications
Effective Date
01-Jun-2013

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ASTM D7568-12 - Standard Specification for Polyethylene-Based Structural-Grade Plastic Lumber for Outdoor ApplicationsASTM D7568-12 - Standard Specification for Polyethylene-Based Structural-Grade Plastic Lumber for Outdoor Applications
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ASTM D7568-12 - Standard Specification for Polyethylene-Based Structural-Grade Plastic Lumber for Outdoor Applications
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D7568 −12
StandardSpecification for
Polyethylene-Based Structural-Grade Plastic Lumber for
1
Outdoor Applications
This standard is issued under the fixed designation D7568; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope fillers,reinforcements,andadditives.Eachformulationistobe
identified as a distinct and different product, to be tested and
1.1 This specification covers a type of plastic lumber
evaluated separately.
product, defined as polyethylene-based structural-grade plastic
1.8 Diverse and multiple combinations of both virgin and
lumber (SGPL), for use as main framing members, including
recycled polyethylene material systems are permitted in the
joists, stringers, beams, columns; and secondary framing
manufacture of SGPL products.
members, including planking, posts and bracing; in outdoor
structures such as decks, boardwalks, docks, and platforms.
1.9 Fiber reinforcements used in SGPL include manufac-
tured materials such as fiberglass (chopped or continuous),
1.2 This specification is applicable to solid, rectangular
carbon, aramid and other polymeric materials.
SGPL products where polyethylene resin (non cross-linked) is
the continuous phase and is at least 50% of the product (by
1.10 A wide variety of chemical additives are typically
weight).
added to SGPL formulations. Examples include colorants,
chemicalfoamingagents,ultravioletstabilizers,fireretardants,
1.3 This specification is not applicable to plastic lumber
lubricants, anti-static products, heat stabilizers, and coupling
products containing cellulosic materials as additives, fillers or
agents.
fiber reinforcements.
1.11 Diverse types and combinations of filler systems are
1.4 SGPLproductscoveredbythisspecificationshallnotbe
permitted in the manufacturing of SGPL products. Fillers that
used as tensile members.
cause the product to fail the requirements of 6.13 are not
1.5 SGPL products are produced using several different
permitted in the manufacturing of SGPL products.
manufacturing processes. These processes utilize a number of
1.12 In order for a product to be classified as SGPL, it must
polyethylene resin material systems that include varying pro-
meet the minimum stress and modulus criteria consistent with
portions of fillers, fiber reinforcements, and other chemical
the specific product as marked, and additionally the properties
additives.
specified in Section 6 of this specification.
1.6 Due to thermodynamic effects that result in outer-
1.13 This specification pertains to SGPL where any rein-
surface densification during manufacture, SGPL products are
forcement is uniformly distributed within the product. When
typically non-homogeneous in the cross-section. This standard
reinforcement is not uniformly distributed, the engineering
does not address materials that have been modified from their
issues become substantially more complex. For this reason,
original cross-section.
such products are not covered in this document.
1.6.1 The cross-section non-homogeneity is addressed in
1.14 Products that fail at strains of less than 0.02 (2%)
the material property assessments in this document only for
when tested in flexure in accordance with 6.6 are not compat-
applications in which the product cross-section is not modified
ible with the underlying assumptions of Annex A1 and are
by cutting, notching, or drilling. For products modified in this
beyond the scope of this standard (see Note 1).
manner,additionalengineeringconsiderationsarerequiredand
they are beyond the scope of this document.
NOTE 1—Calculation of time-dependent properties in Annex A1 is
based on the assumption that the product does not fail in a brittle manner.
1.7 For purposes of this standard, an SGPL product is a
The2%strainlimitwasselectedbasedonthejudgmentofthetaskgroup
specific combination of polyethylene resin, together with
members that created Annex A1.
1.15 This specification addresses issues relevant to a buy-
er’s requirements for SGPL products and has therefore been
1
This is under the jurisdiction of ASTM Committee D20 on Plastics and is the developed in the format of a procurement specification.
direct responsibility of Subcommittee D20.20 on Plastic Lumber.
1.16 Criteria for design are included as part of this specifi-
Current edition approved June 1, 2012. Published September 2012.
DOI:10.1520/D7568–12. cation for SGPL products.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7568−12
1.17 Use of SGPL members in application will typically
...

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1.1 This specification covers a type of plastic lumber product, defined as polyethylene-based structural-grade plastic lumber (SGPL), for use as main framing members, including joists, stringers, beams, columns; and secondary framing members, including planking, posts and bracing; in outdoor structures such as decks, boardwalks, docks, and platforms.  
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1.8 Diverse and multiple combinations of both virgin and recycled polyethylene material systems are permitted in the manufacture of SGPL products.  
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1.10 A wide variety of chemical additives are typically added to SGPL formulations. Examples include colorants, chemical foaming agents, ultraviolet stabilizers, fire retardants, lubricants, anti-static products, heat stabilizers, and coupling agents.  
1.11 Diverse types and combinations of filler systems are permitted in the manufacturing of SGPL products. Fillers that cause the product to fail the requirements of 6.13 are not permitted in the manufacturing of SGPL products.  
1.12 In order for a product to be classified as SGPL, it must meet the minimum stress and modulus criteria consistent with the specific product as marked, and additionally the properties specified in Section 6 of this specification.  
1.13 This specification pertains to SGPL where any reinforcement is uniformly distributed within the product. When reinforcement is not uniformly distributed, the engineering issues become substantially more complex. For this reason, such products are not covered in this document.  
1.14 Products that fail at strains of less than 0.02 (2 %) when tested in flexure in accordance with 6.6 are not compatible with the underlying assumptions of Annex A1 and are beyond the scope of this standard (see Note 1).
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SIGNIFICANCE AND USE
5.1 The impact strength of PVC profiles relates to suitability for service and to quality of processing. Impact tests are used for quality-control purposes and as an indication that products can withstand handling during assembling, installation, or in service.  
5.2 Results obtained by use of this test method are used in two ways:  
5.2.1 As the basis for establishing impact-test requirements in product standards, and  
5.2.2 To measure the effect of changes in materials or processing.
SCOPE
1.1 This test method covers the determination of the energy required to crack or break rigid poly(vinyl chloride) (PVC) profile under specified conditions of impact by means of a falling weight.  
1.2 This test method is used either by itself or in conjunction with other methods for measuring PVC product toughness.  
1.3 Because of the wide variety of profile sizes and shapes and the wide variety of manufacturing procedures and field abuse, this test method does not correlate universally with all types of abuse. Therefore, correlations must be established as needed.  
1.4 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this standard.  
1.5 The values stated in inch-pound units are to be regarded as the standard.  
1.6 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 known ISO equivalent to this standard.  
1.7 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.

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ASTM
ASTM D8366-21a(Specification)
Standard Specification for Extruded and Compression Molded Shapes Made from Unfilled Poly(Vinylidene Fluoride) PVDF

SCOPE
1.1 This specification covers the requirements and test methods for the material, dimensions, workmanship, and the properties of extruded sheet, rod and tubular bar manufactured from unfilled PVDF.  
1.2 This specification covers the requirements and test methods for the material, dimensions, workmanship, and the properties of extruded and compression molded shapes manufactured from unfilled PVDF.  
1.3 The properties included in this specification are those required for shapes made from PVDF polymers. Requirements necessary to identify particular characteristics of the shape are included in Section 5.  
1.4 This specification allows for the use of up to 20 % process regrind and reprocessed plastic, total, and of uncontaminated quality.  
1.5 The values stated in English Units are to be regarded as the standard in all property and dimensional tables. For reference purposes, SI units are also included.  
1.6 The following safety hazards caveat pertains only to the test method or test methods described in this specification. 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.  
1.7 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.

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  • Technical specification
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