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

BS EN ISO 21304-1:2019

Plastics. Ultra-high-molecular-weight polyethylene (PE- UHMW) moulding and extrusion materials. Designation system and basis for specifications

Status : Current   Published : May 2019

Format
PDF

Format
HARDCOPY



What is this standard about?

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 massflow rate (MFR) of less than 0,1 g/10 min, measured at 190 °C and 21,6 kg load.

The types of PE-UHMW are differentiated from each other by a classification system based on appropriate levels of the designatory properties:

a) viscosity number;

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-molecularweight 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.




Standard NumberBS EN ISO 21304-1:2019
TitlePlastics. Ultra-high-molecular-weight polyethylene (PE- UHMW) moulding and extrusion materials. Designation system and basis for specifications
StatusCurrent
Publication Date02 May 2019
Normative References(Required to achieve compliance to this standard)ISO 1628-3, ISO 5834-1, ISO 1043-1, ISO 21304-2
Informative References(Provided for Information)ISO 1043-2
ReplacesBS EN ISO 11542-1:2001
International RelationshipsEN ISO 21304-1:2019,ISO 21304-1:2019
DescriptorsFillers, Reinforcing materials, Classification systems, Data blocks, Polymers, Extruding, Polyethylene, Moulding compounds, Impact strength, Polyolefins, Viscosity, Designations, Thermoplastic polymers, Plastics, Moulding (process), Moulded materials
ICS83.080.20
Title in FrenchPlastiques. Matériaux à base de polyéthylène à très haute masse moléculaire (PE-UHMW) pour moulage et extrusion Système de désignation et base de spécifications
Title in GermanKunststoffe. Ultrahochmolekulare Polyethylen (PE-UHMW)-Werkstoffe Bezeichnungssystem und Basis für Spezifikationen
CommitteePRI/82
ISBN978 0 580 92952 6
PublisherBSI
FormatA4
DeliveryYes
Pages16
File Size1.027 MB
Price£130.00


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