ASTM F2423-11
ASTM F2428-04(2011)..
ASTM F2451-05(2010)..
ASTM F2502-11
ASTM F2514-08(2014)..
ASTM F2527-10
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ASTM F2102-13
Standard Guide for Evaluating the Extent of Oxidation in Polyethylene Fabricated Forms Intended for Surgical Implants
Automaticky preložený názov:
Štandardné Guide pre hodnotenie rozsahu oxidácie v polyetylénovej zvarený formuláre určené pre chirurgických implantátov
NORMA vydaná dňa 1.11.2013
Informácie o norme:
Označenie normy: ASTM F2102-13
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.11.2013
Kód tovaru: NS-52838
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM F2102-13 :
Keywords:
FTIR, implant, oxidation, oxidation index, UHMWPE, ICS Number Code 11.040.40 (Implants for surgery, prothetics and orthotics)
Doplňujúce informácie
| 1. Scope | ||
|
1.1 This guide covers a method for the measurement of the relative extent of oxidation present in HDPE homopolymers and 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 FIG. 1 Typical FTIR Spectra of
Oxidized UHMWPE, Showing the Definition of an Area-Based Oxidation
Index Based on Normalization Using the 1370-cm -1
Peak
FIG. 2 FTIR Spectra Showing the
Carbonyl Absorption Bands
1.4 The following
precautionary caveat pertains only to the test method portion,
Section 5, 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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Podobné normy:
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