ASTM D6111-97

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 6111 – 97
Standard Test Method for
Bulk Density And Specific Gravity of Plastic Lumber and
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Shapes by Displacement
This standard is issued under the fixed designation D 6111; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope D 6108 Test Method for Compressive Properties of Plastic
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Lumber and Shapes
1.1 This test method covers the determination of the bulk
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E 1 Specification for ASTM Thermometers
density and specific gravity of plastic lumber and shapes in
E 12 Terminology Relating to Density and Specific Gravity
their “as manufactured” form. As such, this is a test method for
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of Solids, Liquids, and Gases
evaluating the properties of plastic lumber or shapes as a
product and not a material property test method.
3. Terminology
1.2 This test method is suitable for determining the bulk
3.1 Definitions:
specific gravity or bulk density by immersion of the entire item
3.1.1 density, bulk—the weight per unit volume of a mate-
or a representative cross section in water. This test method
rial including voids inherent in material as tested. (See Termi-
involves the weighing of a one piece specimen in water, using
nology D 883.)
a sinker with plastics that are lighter than water. This test
3.1.1.1 Discussion—Specific gravity at 23/23°C can be
method is suitable for products that are wet by, but otherwise
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converted to density 23°C, g/cm , as follows:
not affected by water for the duration of the test.
23C 3
1.3 Plastic lumber and plastic shapes are currently made
D , g/cm 5 sp gr 23/23°C 3 0.9976 (1)
predominately from recycled plastics. However, this test
3.1.2 plastic lumber, n—a manufactured product composed
method would also be applicable to similar manufactured
of more than 50 weight percent resin, and in which the product
plastic products made from virgin resins where the product is
generally is rectangular in cross-section and typically supplied
non-homogeneous in the cross-section.
in board and dimensional lumber sizes, may be filled or
1.4 The values stated in SI units are to be regarded as the
unfilled, and may be composed of single or multiple resin
standard.
blends.
1.5 This standard does not purport to address all of the
3.1.3 plastic shape, n—a manufactured product composed
safety concerns, if any, associated with its use. It is the
of more than 50 weight percent resin, and in which the product
responsibility of the user of this standard to establish appro-
generally is not rectangular in cross-section, may be filled or
priate safety and health practices and determine the applica-
unfilled, and may be composed of single or multiple resin
bility of regulatory limitations prior to use.
blends.
3.1.4 resin, n—a solid or pseudosolid organic material often
NOTE 1—There is no similar or equivalent ISO standard.
of high molecular weight, which exhibits a tendency to flow
2. Referenced Documents
when subjected to stress, usually has a softening or melting
2.1 ASTM Standards:
range, and usually fractures conchoidally. (See Terminology
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D 618 Practice for Conditioning Plastics for Testing
D 883.)
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D 883 Terminology Relating to Plastics
3.1.4.1 Discussion—In a broad sense, the term is used to
D 1622 Test Method for Apparent Density of Rigid Cellular
designate any polymer that is a basic material for plastics.
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Plastics
3.1.5 specific gravity, bulk (of solids)—the ratio of the
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D 1898 Practice for Sampling of Plastics
weight in air of a unit volume of a permeable material
D 5033 Guide for the Development of Standards Relating to
(including both permeable and impermeable voids normal to
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the Proper Use of Recycled Plastics
the material) at a stated temperature to the weight in air of
equal density of an equal volume of gas-free distilled water at
a stated temperature. The form of expression shall be the
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This test method is under the jurisdiction of ASTM Committee D-20 on Plastics following:
and is the direct responsibility of Subcommittee D20.20 on Plastic Products (Section
D20.20.01).
Current edition approved July 10, 1997. Published February 1998.
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Annual Book of ASTM Standards, Vol 08.01. Annual Book of ASTM Standards, Vol 14.03.
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Annual Book of ASTM Standards, Vol 08.03. Annual Book of ASTM Standards, Vol 15.05.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
D 6111
bulk specifi
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