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Significance and Use
4.1 Aspects of the biological response to calcium phosphate materials in soft tissue and bone have been reported from laboratory studies and clinical use (. )
4.2 The requirements of this test method apply to calcium phosphate materials such as calcium hydroxyapatite (see Specification ), beta-tricalcium phosphate (see Specification ), and biphasic mixtures thereof with or without intentional addition of other minor components (<10 %).
4.3 This test method is limited to the laboratory evaluation of the dissolution rate of a calcium phosphate material. No correlation of the results to in vivo performance is implied. Therefore, it is recommended that a control material be included in the evaluation. The control material can be a standardized material such as NIST SRM 2910 or a historical control.
1.1 This test method covers calcium phosphate materials intended for use in surgical implant applications.
1.2 The material(s) shall be representative of that produced for sale. It shall have been produced and processed under standard manufacturing conditions.
1.3 The materials may be in the form of powders, granules, spall material, fabricated forms or coatings; and may be porous, nonporous, textured, and other implantable topographical substrate form representative of the end-use product.
1.4 The calcium phosphate material may constitute the only material in a substrate or it may be one of multiple materials so long as all other materials present do not dissolve under the test conditions described in this test method.
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.6 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
F1088 Specification for Beta-Tricalcium Phosphate for Surgical Implantation
F1185 Specification for Composition of Hydroxylapatite for Surgical Implants
ICS Number Code 11.040.40 (Implants for surgery, prothetics and orthotics)
UNSPSC Code 42295500(Surgical implants and expanders and extenders and surgical wires and related products)
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ASTM F1926 / F1926M-14, Standard Test Method for Dissolution Testing of Calcium Phosphate Granules, Fabricated Forms, and Coatings, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top