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Standard Guide for Evaluating the Extent of Oxidation in Ultra-High-Molecular-Weight Polyethylene Fabricated Forms Intended for Surgical Implants
Automaticky preložený názov:
Štandardné Príručka pre hodnotenie rozsahu oxidácie v Ultra - High - molekulárnej polyetylénovej zvarený formulárov určených pre Chirurgické protézy
NORMA vydaná dňa 1.5.2006
Označenie normy: ASTM F2102-06
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.5.2006
Kód tovaru: NS-52836
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
FTIR, implant, oxidation, oxidation index, UHMWPE, ICS Number Code 11.040.40 (Implants for surgery, prothetics and orthotics)
1. Scope | ||
1.1 This guide covers a method for the measurement of the relative extent of oxidation present in ultra-high-molecular-weight polyethylene (UHMWPE) intended for use in medical implants. The material is analyzed by infrared spectroscopy. The intensity (area) of the carbonyl absorptions (>C=O) centered near 1720 cm-1 is related to the amount of chemically bound oxygen present in the material. Other forms of chemically bound oxygen (C-O-C, C-O-O-C, C-O-H, and so forth) are not captured by this guide. 1.2 Although this guide may give the investigator a means to compare the relative extent of carbonyl oxidation present in various UHMWPE samples, it is recognized that other forms of chemically bound oxygen may be important contributors to these materials' characteristics. 1.3 The applicability of the infrared method has been demonstrated by many literature reports. This particular method, using the intensity (area) of the C-H absorption centered near 1370 cm-1 to normalize for the sample's thickness, has been validated by an Interlaboratory Study (ILS) conducted according to Practice E 691. The following precautionary caveat pertains only to the test method portion, Section , of this specification: This standard may involve hazardous materials, operations, and equipment. 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 requirements prior to use. |
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2. Referenced Documents | ||
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