This part of GB/T 19701 specifies the requirements and corresponding test methods for ultra-high molecular weight polyethylene (UHMWPE) powder for surgical implants. This section does not apply to finished products. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated reference documents, the latest version of the document (including all modification orders) applies to the non document. 1SO 1628-3 Plastics - Determination of the viscosity of dilute solutions of polymers using capillary viscometers - Part 3: Plastics Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 3; Polyethylene and polypropylenes ISO 3451-1: Determination of plastic ash - Part I:, Plastics Determination of ash Part ltGeneral methods - IsoO 11542-1 type material for ultra-high molecular weight polyethylene (PE-UHMW) molding and extrusion materials - Part I; Naming system and basis for specifications [Plastics Ultra high molecular weight polyethylene (PF-UHMW) molding and extrusion materials Part 1; Design system and basis for specifications] ISO 11542-2 Plastics Ultra high molecular weight polyethylene (PE-UHMW) molding and extrusion materials Part 2; Sample preparation and performance determination [Plastics Ultra high molecular weight polyethylene (PE-UHMW) molding and extrusion materials Part 2, Preparation of test specifications and determination of properties] DIN 53474 plastic, Testing; of plastics. rubber and elastomers Determination of the chlorine content (Wickbold combustion>) The terms and definitions defined in ISO 11542-1 and ISO 11542-2 are applicable to this document. The four types of powder are classified into Type I, Type 2, and Type 3 according to the flow performance given in Chapter 6 and the ash and impurity element content given in 7. l P>
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