ASTM D3851-07(2012)
(Specification)Standard Specification for Urethane Microcellular Shoe Soling Materials
Standard Specification for Urethane Microcellular Shoe Soling Materials
ABSTRACT
This specification covers the standard physical property requirements and test methods for urethane microcellular materials intended for shoe soling applications. It covers three grades of polyurethane materials that may be selected for use according to abrasion resistance, cut-growth resistance, and other physical properties. Materials shall be subjected to physical tests and shall conform to the requirements for physical properties such as density, tensile strength, ultimate elongation, tear, hardness, cut-growth resistance, and taper abrasion or wear index.
SCOPE
1.1 This specification covers urethane microcellular materials for shoe soling applications. It provides physical property requirements and identifies test methods for determining those specific properties.
1.2 SI units are to be regarded as the preferred units of measurements for values. The inch-pound values in parentheses can be used if there is an agreement between the contractual parties. Note 1—There is no known ISO equivalent to this standard.
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Standards Content (Sample)
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Designation:D3851 −07 (Reapproved 2012)
Standard Specification for
Urethane Microcellular Shoe Soling Materials
This standard is issued under the fixed designation D3851; 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 abrasion resistance, cut-growth resistance, and other physical
properties. The grades are classified as Grade 1, Grade 2, and
1.1 This specification covers urethane microcellular materi-
Grade 3.
als for shoe soling applications. It provides physical property
requirements and identifies test methods for determining those
4. Ordering Information
specific properties.
4.1 Any product represented as complying with this speci-
1.2 SI units are to be regarded as the preferred units of
fication shall meet all the requirements listed herein for its
measurements for values. The inch-pound values in parenthe-
particular classification.
sescanbeusedifthereisanagreementbetweenthecontractual
parties. 5. Physical Requirements
NOTE 1—There is no known ISO equivalent to this standard. 5.1 The material shall conform to requirements for physical
properties prescribed in Table 1.
2. Referenced Documents
6. Test Methods
2.1 ASTM Standards:
6.1 The physical tests shall be in accordance with Test
D412 Test Methods forVulcanized Rubber andThermoplas-
Method D3489.
tic Elastomers—Tension
D624 Test Method for Tear Strength of Conventional Vul-
7. Inspection
canized Rubber and Thermoplastic Elastomers
D792 Test Methods for Density and Specific Gravity (Rela- 7.1 Inspection of the material shall be agreed upon in
writing between the purchaser and the supplier as part of the
tive Density) of Plastics by Displacement
D1052 Test Method for Measuring Rubber Deterioration— purchase contract.
Cut Growth Using Ross Flexing Apparatus
7.2 Testing for conformance to requirements shall be done
D1622 Test Method for Apparent Density of Rigid Cellular
in accordance with this specification and Test Methods D3489.
Plastics
D1938 Test Method for Tear-Propagation Resistance (Trou- 8. Retest and Rejection
ser Tear) of Plastic Film and Thin Sheeting by a Single-
8.1 If any failure occurs, the materials may be retested to
Tear Method
establish conformity in accordance with agreement between
D2240 Test Method for Rubber Property—Durometer Hard-
the purchaser and the seller.
ness
D3489 Test Methods for Microcellular Urethane Materials 9. Packaging, Marking, and Labeling
9.1 Packaging—The material shall be packed in standard
3. Classification
commercial containers, so constructed as to ensure acceptance
3.1 This specification covers three grades of microcellular
by common or other carriers for safe transportation at the
urethane materials that may be selected for use according to
lowest rate to the point of delivery, unless otherwise specified
in the contract or order.
9.2 Marking—The shipping container shall be marked with
This specification is under the jurisdiction of ASTM Committee D20 on
the name, type, and quality of material in accordance with the
Plastics and is the direct responsibility of Subcommittee D20.22 on Cellular
Materials - Plastics and Elastomers.
contract or order under which the shipment is made. The
Current edition approved Aug. 1, 2012. Published October 2012. Originally
shipping container shall also be marked with the name of the
approved in 1980. Last previous edition approved in 2007 as D3851 – 07. DOI:
manufacturer and the contract or order number.
10.1520/D3851-07R12.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
9.3 Labeling—In order that purchasers may identify prod-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ucts complying with all requirements of this specification,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. producers choosing to produce such products in conformance
*A Summary of Changes section appears at the end of this standard
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D3851−07 (2012)
TABLE 1 Physical Property Requirements on Polyurethane Shoe Systems
Grade
ASTM
Property
Method
AAA
Density D792, D3489,
or D1622
Tensile strength, min, MPa (psi) 4.9 (700) 3.5 (500) 2.8 (400) D412
Ultimate elongati
...
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