Diametral compression strength is an important measure of the mechanical properties of casting materials. This test method simulates the loading pattern seen in lower extremity casting applications during ambulation. This test method cannot be used to determine cast life or measure bending or other modes of cast failure.

This test method measures but does not prescribe values.

1. Scope

1.1 This test method covers the functional diametral compression strength of cylindrical test specimens formed from synthetic fiberglass polyurethane casting materials. The test specimens employed in this test method are similar in geometry and construction to casts used in orthopaedic applications. This test method is not intended to determine the strength of the base materials used for fabrication of the test specimen.

1.2 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.

1.3 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are given in 6.7.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

E4 Practices for Force Verification of Testing Machines

E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

Keywords

orthopaedic casting tape—diametral compression strength; orthopaedic casting tape—mechanical testing; orthopaedic casting tape—setting time; polyurethane—biomedical applications; polyurethane/fiberglass orthopaedic casting tape; Casting tape; Diametral compression strength; Fiberglass orthopaedic casting tape; Orthopaedic medical devices; Polyurethane--surgical applications; Setting time; Strength; Surgical castings; Testing methods--surgical implants; Water-activated polyurethane fiberglass casting tape;

ICS Code

ICS Number Code 11.120.20 (Wound dressings. Compresses)

Citing ASTM Standards

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