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Komité: CEN/TC 249 (Plastics)
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Sluttdato: 25. mar 2019
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1.1 This part of ISO xxxxx establishes a system of designation for polyetheretherketone (PEEK) moulding and extrusion materials which may be used as the basis for specifications. Polyetheretherketone polymer chains are composed of phenylene rings linked in (1,4) position by a sequence of two ether groups followed by one ketone group. 1.2 The grades of PEEK plastics are differentiated from each other by a classification system based on appropriate levels of the designatory properties a) melt viscosity or melt volume-flow rate, b) tensile modulus, c) tensile strength and on information about the intended application and/or method of processing, important properties, additives, colorants, fillers and reinforcing materials. 1.3 The designation system is applicable to all polyetheretherketones. It applies to materials ready for normal use in the form of powder, granules or pellets, unmodified or modified by colourants, fillers, reinforcements or other additives. 1.4 It is not intended to imply that materials having the same designation give necessarily the same performance. This part of ISO xxxxx does not provide engineering data, performance data or data on processing conditions which may be required to specify a material for a particular application and/or method of processing. If such additional properties are required, they shall be determined in accordance with the test methods specified in ISO xxxxx-2, if suitable. 1.5 In order to specify a thermoplastic material for a particular application or to ensure reproducible processing, additional requirements may be given in data block 5.
Komité: CEN/TC 249 (Plastics)
Opprinnelse:
Sluttdato: 25. mar 2019
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This part of ISO xxxxx specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of polyetheretherketone (PEEK) moulding and extrusion materials. Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given. Procedures and conditions for the preparation of test specimens and procedures for measuring properties of the materials from which these specimens are made are also given. Properties and test methods that are suitable and necessary to characterize PEEK moulding and extrusion materials are listed. The properties have been selected from the general test methods in ISO 10350-1. Other test methods in wide use for or of particular significance to these moulding and extrusion materials are also included in this part of ISO xxxxx, as are the designatory properties specified in ISO xxxxx-1. In order to obtain reproducible and comparable test results, it is necessary to use the methods of preparation and conditioning, the specimen dimensions and the test procedures specified herein. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.
Komité: ISO/TC 61/SC 14 (Environmental aspects)
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Sluttdato: 12. mai 2019
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