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ASTM F 1957 : 1999 : R2017
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Standard Test Method for Composite Foam Hardness-Durometer Hardness
Hardcopy , PDF
English
01-02-2017
CONTAINED IN VOL. 15.07, 2017 Defines a type of composite foam hardness measurement device known as durometer: Type CF.
Committee |
F 24
|
DocumentType |
Test Method
|
Pages |
6
|
ProductNote |
Reconfirmed 2017
|
PublisherName |
American Society for Testing and Materials
|
Status |
Current
|
Supersedes |
1.1This test method describes a type of composite foam hardness measurement device known as durometer: Type CF. The procedure for determining indentation hardness of substances comprised of two or more elastomeric materials, one of which is a foam or foam like material. These are classified as composite foam structures. The composite foam product may have an armature made of a material suitable for adding structural integrity including but not limited to metal, plastic, or wood. This construction is typical for lapbar restraints, seating, and other restraint devices, as well as some show elements.
1.2This test method is not equivalent to other indentation hardness methods and instrument types, specifically those described in Test Methods D1415 and D2240.
1.3The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. Many of the stated dimensions in SI are direct conversions from the U.S. customary system to accommodate the instrumentation, practices, and procedures that existed prior to the Metric Conversion Act of 1975.
1.4All materials, instruments, or equipment used for the determination of mass or dimension shall have traceability to the National Institute for Standards and Technology (NIST) or other internationally recognized organizations.
1.5This test method is not a safety standard as it pertains to ride legislation. The use of this test method is optional based upon an agreement between customers and suppliers of foam products.
1.6This 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 and health practices and determine the applicability of regulatory limitations prior to use.
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