ASTM D6109-05

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D6109–05
Standard Test Methods for
Flexural Properties of Unreinforced and Reinforced Plastic
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Lumber and Related Products
This standard is issued under the fixed designation D6109; 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* 1.4.3 Fiber reinforcements used in plastic lumber include
manufacturedmaterialssuchasfiberglass(choppedorcontinu-
1.1 These test methods are suitable for determining the
ous), carbon, aramid and other polymerics; or lignocellulosic-
flexuralpropertiesforanysolidorhollowmanufacturedplastic
based fibers such as flax, jute, kenaf, and hemp.
lumber product of square, rectangular, round, or other geomet-
1.4.4 A wide variety of chemical additives are added to
ric cross section that shows viscoelastic behavior. The test
plastic lumber formulations to serve numerous different pur-
specimens are whole “as manufactured” pieces without any
poses. Examples include colorants, chemical foaming agents,
altering or machining of surfaces beyond cutting to length.As
ultraviolet stabilizers, flame retardants, lubricants, anti-static
such, this is a test method for evaluating the properties of
products, biocides, heat stabilizers, and coupling agents
plastic lumber as a product and not a material property test
1.5 The values stated in inch-pound units are to be regarded
method. Flexural strength cannot be determined for those
as the standard. The values given in brackets are for informa-
products that do not break or that do not fail in the extreme
tion only.
outer fiber.
1.6 This standard does not purport to address all of the
1.2 Test Method A—designedprincipallyforproductsinthe
safety concerns, if any, associated with its use. It is the
flat or “plank” position.
responsibility of the user of this standard to establish appro-
1.3 Test Method B—designed principally for those products
priate safety and health practices and determine the applica-
in the edgewise or “joist” position.
bility of regulator limitations prior to use.
1.4 Plastic lumber currently is produced using several dif-
ferent plastic manufacturing processes.These processes utilize
NOTE 1—There is no similar or equivalent ISO standard.
a number of diverse plastic resin material systems that include
2. Referenced Documents
fillers, fiber reinforcements, and other chemical additives. The
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test methods are applicable to plastic lumber products where
2.1 ASTM Standards:
the plastic resin is the continuous phase, regardless of its
D618 Practice for Conditioning Plastics for Testing
manufacturing process, type or weight percentage of plastic
D883 Terminology Relating to Plastics
resinutilized,typeorweightpercentageoffillersutilized,type
D2915 Practice for Evaluating Allowable Properties for
or weight percentage of reinforcements utilized, and type or
Grades of Structural Lumber
weight percentage of other chemical additives.
D5033 Guide for Development of ASTM Standards Relat-
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1.4.1 Alternative to a single resin material system, diverse
ing to Recycling and Use of Recycled Plastics
andmultiplecombinationsofbothvirginandrecycledthermo-
D5947 Test Methods for Physical Dimensions of Solid
plastic material systems are permitted in the manufacture of
Plastics Specimens
plastic lumber products.
E4 Practices for Force Verification of Testing Machines
1.4.2 Diverse types and combinations of inorganic and
E691 Practice for Conducting an Interlaboratory Study to
organic filler systems are permitted in the manufacturing of
Determine the Precision of a Test Method
plastic lumber products. Inorganic fillers include such materi-
3. Terminology
alsastalc,mica,silica,wollastonite,calciumcarbonate,andso
forth. Organic fillers include lignocellulosic materials made or
3.1 Definitions: Definitions of terms applying to these test
derived from wood, wood flour, flax shive, rice hulls, wheat methods appear in Terminology D883 and Guide D5033.
straw, and combinations thereof.
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These test methods are under the jurisdiction of ASTM Committee D20 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Plastics and are the direct responsibility of Subcommittee D20.20 on Plastic contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Products (Section D20.20.01). Standards volume information, refer to the standard’s Document Summary page on
CurrenteditionapprovedFebruary1,2005.PublishedFebruary2005.Originally the ASTM website.
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approved in 1997. Last previous edition approved in 2003 as D6109-03. DOI: Withdrawn. The last approved version of this historical standard is referenced
10.1520/D6109-05. on www.astm.org.
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