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BS EN ISO 21304-1:2019

BS EN ISO 21304-1:2019 Plastics. Ultra-high-molecular-weight polyethylene (PE- UHMW) moulding and extrusion materials. Designation system and basis for specifications

standard by British Standard / European Standard / International Organization for Standardization, 05/02/2019

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Full Description

Scope: This document establishes a system of designation for thermoplastic PE-UHMW materials, which can be used as the basis for specifications.

For the purposes of this document, PE-UHMW materials are polyethylene materials having a melt mass-flow rate (MFR) of less than 0,1 g/10 min, measured at 190
b)elongational stress;
c)Charpy double-notched impact strength;
and on information about the intended application and/or method of processing, important properties, additives, colorants, fillers and reinforcing materials.

This designation system is applicable to all PE-UHMW homopolymers and to ultra-high-molecular-weight copolymers of ethylene having a content of other 1-olefinic monomers of less than 50 % by mass and a content of non-olefinic monomers with functional groups up to a maximum of 3 % by mass. It applies to materials ready for normal use in the form of powder, granules or pellets, unmodified or modified by colorants, fillers and other additives.

It is not intended to imply that materials having the same designation give necessarily the same performance. This document does not provide engineering data, performance data or data on processing conditions which can be required to specify a material. If such additional properties are required, they are intended to be determined in accordance with the test methods specified in ISO 21304-2, if suitable.

In order to specify a thermoplastic PE-UHMW material to meet particular specifications, the requirements are to be given in data block 5 (see 4.1).

Cross References:
ISO 1628-3
ISO 5834-1
ISO 1043-1
ISO 21304-2
ISO 1043-2


All current amendments available at time of purchase are included with the purchase of this document.

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