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ASTM D6662-22

(Specification)

Standard Specification for Polyolefin-Based Plastic Lumber Decking Boards

Standard Specification for Polyolefin-Based Plastic Lumber Decking Boards

ABSTRACT
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.
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.

General Information

Status
Published
Publication Date
31-Mar-2022
ICS
91.100.99 - Other construction materials
Technical Committee
D20 - Plastics
Drafting Committee
D20.20 - Plastic Lumber
Current Stage
Ref Project

Relations

Refers
ASTM E108-20 - Standard Test Methods for Fire Tests of Roof Coverings
Effective Date
15-Mar-2020
Refers
ASTM E108-20a - Standard Test Methods for Fire Tests of Roof Coverings
Effective Date
01-Apr-2020

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Standards Content (Sample)

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.
Designation:D6662 −22
Standard Specification for
1
Polyolefin-Based Plastic Lumber Decking Boards
This standard is issued under the fixed designation D6662; 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* 2. Referenced Documents
1.1 This specification covers polyolefin-based plastic lum- 2.1 The following documents of the issue in effect on the
dateofmaterialpurchaseformapartofthisspecificationtothe
ber products for use as exterior residential decking boards.
extent referenced herein:
1.2 Plastic lumber products are currently made predomi-
2
2.2 ASTM Standards:
nantly with recycled polyolefin plastics (in particular high-
D883Terminology Relating to Plastics
density polyethylene) where the products are more or less
D2565Practice for Xenon-Arc Exposure of Plastics In-
non-homogenous in the cross-section. However, this specifica-
tended for Outdoor Applications
tion is also potentially applicable to similar manufactured
D2898 Practice for Accelerated Weathering of Fire-
plastic products made from other plastic and plastic composite
Retardant-Treated Wood for Fire Testing
materials that have non-homogenous cross-sections.
D2915Practice for Sampling and Data-Analysis for Struc-
1.3 This specification details a procedure to calculate rec-
tural Wood and Wood-Based Products
ommended span lengths for spacing of support joists. This
D4329Practice for Fluorescent Ultraviolet (UV) Lamp Ap-
procedure was developed using experimental data from a
paratus Exposure of Plastics
typical unreinforced plastic lumber made predominantly from
D5033GuideforDevelopmentofASTMStandardsRelating
recycled high-density polyethylene. The methodology to de-
to Recycling and Use of Recycled Plastics (Withdrawn
velop span lengths for other types and compositions of plastic 3
2007)
lumber is detailed in Appendix X1 of this standard.
D6109TestMethodsforFlexuralPropertiesofUnreinforced
1.4 The values are stated in inch-pound units, as these are and Reinforced Plastic Lumber and Related Products
currently the most common units used by the construction D6112Test Methods for Compressive and Flexural Creep
industry. Equivalent SI units are indicated in parentheses. and Creep-Rupture of Plastic Lumber and Shapes
However, the units stated for irradiance exposure in the D6341Test Method for Determination of the Linear Coef-
ficient of Thermal Expansion of Plastic Lumber and
weatherabilitysection(6.3)areinSIunitsasthesearetheunits
commonly used for testing of this type. Plastic Lumber Shapes Between –30 and 140°F (–34.4
and 60°C)
1.5 This standard does not purport to address all of the
E84Test Method for Surface Burning Characteristics of
safety concerns, if any, associated with its use. It is the
Building Materials
responsibility of the user of this standard to establish appro-
E108Test Methods for Fire Tests of Roof Coverings
priate safety, health, and environmental practices and deter-
G151PracticeforExposingNonmetallicMaterialsinAccel-
mine the applicability of regulatory limitations prior to use.
erated Test Devices that Use Laboratory Light Sources
NOTE 1—There is no similar or equivalent ISO Standard.
G154Practice for Operating Fluorescent Ultraviolet (UV)
Lamp Apparatus for Exposure of Nonmetallic Materials
1.6 This international standard was developed in accor-
G155PracticeforOperatingXenonArcLampApparatusfor
dance with internationally recognized principles on standard-
Exposure of Materials
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
3. Terminology
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
3.1 Definitions:
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This specification is under the jurisdiction of ASTM Committee D20 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
PlasticsandisthedirectresponsibilityofSubcommitteeD20.20onPlasticLumber. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved April 1, 2022. Published April 2022. Originally the ASTM website.
3
approved in 2001. Last previous edition approved in 2017 as D6662-17. DOI: The last approved version of this historical standard is referenced on
10.1520/D6662-22. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6662 − 17 D6662 − 22
Standard Specification for
1
Polyolefin-Based Plastic Lumber Decking Boards
This standard is issued under the fixed designation D6662; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. 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 safety, health, and healthenvironmental 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.
2. Referenced Documents
2.1 The following documents of the issue in effect on the date of material purchase form a part of this specification to the extent
referenced herein:
2
2.2 ASTM Standards:
1
This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.20 on Plastic Lumber.
Current edition approved March 1, 2017April 1, 2022. Published March 2017April 2022. Originally approved in 2001. Last previous edition approved in 20132017 as
D6662 - 13.D6662 - 17. DOI: 10.1520/D6662-17.10.1520/D6662-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6662 − 22
D883 Terminology Relating to Plastics
D2565 Practice for Xenon-Arc Exposure of Plastics Intended for Outdoor Applications
D2898 Practice for Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing
D2915 Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products
D4329 Practice for Fluorescent Ultraviolet (UV) Lamp Apparatus Exposure of Plastics
3
D5033 Guide for Development of ASTM Standards Relating to Recycling and Use of Recycled Plastics (Withdrawn 2007)
D6109 Test Methods for Flexural Properties of Unreinforced and Reinforced Plastic Lumber and Related Products
D6112 Test Methods for Compressive and Flexural Creep and Creep-Rupture of Plastic Lumber and Shapes
D6341 Test Method for Determination of the Linear Coefficient of Thermal Expansion of Plastic Lumber and Plastic Lumber
Shapes Between –30 and 140°F (–34.4 and 60°C)
E84 Test Method for Surface Burning Characteristics of Building Materials
E108 Test Methods for Fire Tests of Roof Coverings
G151 Practice for Exposing Nonmetallic Ma
...

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5.3.1 Choose sensor sites using building plans, specifications and thermography to determine that the measurement represents the required conditions.  
5.3.2 A single HFT site is not representative of a building component. The measurement at an HFT site represents the conditions at the sensing location of the HFT. Use thermography appropriately to identify average and extreme conditions and large surface areas for integration. Use multiple sensor sites to assess overall performance of a building component.  
5.3.3 A given HFT calibration is not applicable for all measurements. The HFT disturbs heat flow at the measurement site in a manner unique to the surrounding materials (9, 10); this affects the conversion constant, S, to be used. The us...
SCOPE
1.1 This practice covers a technique for using heat flux transducers (HFTs) and temperature transducers (TTs) in measurements of the in-situ dynamic or steady-state thermal behavior of opaque components of building envelopes. The applications for such data include determination of thermal resistances or of thermal time constants. However, such uses are beyond the scope of this practice (for information on determining thermal resistances, see Practice C1155).  
1.2 Use infrared thermography with this technique to locate appropriate sites for HFTs and TTs (hereafter called sensors), unless subsurface conditions are known.  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.4 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.  
1.5 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 D8298/D8298M-20(Test Method)
Standard Test Method for Determination of Erosion Control Products (ECP) Performance in Protecting Slopes from Continuous Rainfall-Induced Erosion Using a Tilted Bed Slope

SIGNIFICANCE AND USE
5.1 This test method utilizes large-scale testing equipment and procedures established at a variety of testing laboratories over the last 30 years.  
5.2 This method is useful in evaluating ECPs and their installation to reduce soil loss and sediment concentrations when exposed to defined rainfall conditions and improving water quality exiting the area disturbed by earthwork activity by reducing suspended solids and turbidity.  
5.3 This test method is a performance test, but can also be used for acceptance testing to determine product conformance to project specifications. For project-specific conformance, unique project-specific conditions should be considered. Caution is advised since information regarding laboratory specific precision is incomplete at this time, and differences in soil and other environmental and geotechnical conditions may affect ECP performance.  
5.4 This standard can also be used as a comparative tool for evaluating the erosion control characteristics of different ECPs and can also be used to gain agency approvals.
Note 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.
SCOPE
1.1 This test method is used to evaluate the ability of erosion control products (ECP) to protect slopes from rainfall-induced erosion using an adjustable tilting bed slope. The standard slopes range from 2.5:1 to 4:1 (H:V) having target rainfall intensities between 4.0 and 5.0 in./h [100 and 125 mm/h].  
1.2 There are three main elements the ECPs must have the ability to perform: 1. Absorb the impact force of raindrops, thereby reducing soil particle loosening and detachment through “splash” mechanisms; 2. Slow runoff and encourage infiltration, thereby reducing soil particle displacement and transport through “overland flow” mechanisms; and 3. Trap soil particles beneath the ECP. When comparing data from different ECPs under consideration, it is important to keep the test conditions the same for the ECPs being evaluated, for example, the rainfall intensity rate and the slope.  
1.3 The results of this test method can be used to evaluate performance and acceptability, and can be used to compare the effectiveness of different ECPs. This method provides a comparative evaluation of an ECP to baseline bare soil conditions under controlled and documented conditions. This test method can provide information about a product that is under consideration for a specific application where no performance information currently exists.  
1.4 This test method covers the use of three different soil types, ECP installation: sprayed, rolled, or dry applied, and a runoff collection procedure. This test is typically performed indoors, but may be performed outside as long as certain requirements are met. Partially enclosed facilities are acceptable providing the environmental conditions are met.  
1.5 Units—The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. Reporting of test results in units other than inch-pound shall not be regarded as nonconformance with this standard.  
1.5.1 The gravitational system of inch-pound units is used when dealing with inch-pound units. In the system, the pound (lbf) represents a unit of force (weight), while the units for mass is s...

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ASTM
ASTM A370-23(Test Method)
Standard Test Methods and Definitions for Mechanical Testing of Steel Products

SIGNIFICANCE AND USE
4.1 The primary use of these test methods is testing to determine the specified mechanical properties of steel, stainless steel, and related alloy products for the evaluation of conformance of such products to a material specification under the jurisdiction of ASTM Committee A01 and its subcommittees as designated by a purchaser in a purchase order or contract.  
4.1.1 These test methods may be and are used by other ASTM Committees and other standards writing bodies for the purpose of conformance testing.  
4.1.2 The material condition at the time of testing, sampling frequency, specimen location and orientation, reporting requirements, and other test parameters are contained in the pertinent material specification or in a general requirement specification for the particular product form.  
4.1.3 Some material specifications require the use of additional test methods not described herein; in such cases, the required test method is described in that material specification or by reference to another appropriate test method standard.  
4.2 These test methods are also suitable to be used for testing of steel, stainless steel and related alloy materials for other purposes, such as incoming material acceptance testing by the purchaser or evaluation of components after service exposure.  
4.2.1 As with any mechanical testing, deviations from either specification limits or expected as-manufactured properties can occur for valid reasons besides deficiency of the original as-fabricated product. These reasons include, but are not limited to: subsequent service degradation from environmental exposure (for example, temperature, corrosion); static or cyclic service stress effects, mechanically-induced damage, material inhomogeneity, anisotropic structure, natural aging of select alloys, further processing not included in the specification, sampling limitations, and measuring equipment calibration uncertainty. There is statistical variation in all aspects of mechanical testin...
SCOPE
1.1 These test methods2 cover procedures and definitions for the mechanical testing of steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control.  
1.2 The following mechanical tests are described:    
Sections  
Tension  
7 to 14  
Bend  
15  
Hardness  
16  
Brinell  
17  
Rockwell  
18  
Portable  
19  
Impact  
20 to 30  
Keywords  
32  
1.3 Annexes covering details peculiar to certain products are appended to these test methods as follows:    
Annex  
Bar Products  
Annex A1  
Tubular Products  
Annex A2  
Fasteners  
Annex A3  
Round Wire Products  
Annex A4  
Significance of Notched-Bar Impact Testing  
Annex A5  
Converting Percentage Elongation of Round Specimens to
Equivalents for Flat Specimens  
Annex A6    
Testing Multi-Wire Strand  
Annex A7  
Rounding of Test Data  
Annex A8  
Methods for Testing Steel Reinforcing Bars  
Annex A9  
Procedure for Use and Control of Heat-cycle Simulation  
Annex A10  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5 When these test methods are referenced in a metric product specification, the yield and tensile values may be determined in inch-pound (ksi) units then converted into SI (MPa) units. The elongation determined in inch-pound gauge lengths of 2 in. or 8 in. may be report...

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