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Homepage>BS Standards>83 RUBBER AND PLASTICS INDUSTRIES>83.080 Plastics>83.080.20 Thermoplastic materials>BS EN ISO 21309-1:2019 Plastics. Ethylene/vinyl alcohol (EVOH) copolymer moulding and extrusion materials Designation system and basis for specifications
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immediate downloadReleased: 2019-03-28
BS EN ISO 21309-1:2019 Plastics. Ethylene/vinyl alcohol (EVOH) copolymer moulding and extrusion materials Designation system and basis for specifications

BS EN ISO 21309-1:2019

Plastics. Ethylene/vinyl alcohol (EVOH) copolymer moulding and extrusion materials Designation system and basis for specifications

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Standard number:BS EN ISO 21309-1:2019
Pages:14
Released:2019-03-28
ISBN:978 0 580 92957 1
Status:Standard
DESCRIPTION

BS EN ISO 21309-1:2019


This standard BS EN ISO 21309-1:2019 Plastics. Ethylene/vinyl alcohol (EVOH) copolymer moulding and extrusion materials is classified in these ICS categories:
  • 83.080.20 Thermoplastic materials

This document establishes a system of designation for ethylene/vinyl alcohol (EVOH) copolymer thermoplastic materials, which may be used as the basis for specifications.

The types of ethylene/vinyl alcohol (EVOH) copolymer plastic are differentiated from each other by a classification system based on appropriate levels of the designatory property:

  • melt mass-flow rate;

  • and on information about basic polymer parameters, intended application and/or method of processing, important properties, additives, colorants, fillers and reinforcing materials.

This document is applicable to copolymers of ethylene and vinyl alcohol containing from 15 mol % to 60 mol % of ethylene. It applies to materials ready for normal use in the form of powder, granules or pellets, unmodified or modified by colorants, additives, fillers, etc.

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 for a particular application and/or method of processing.

If such additional properties are required, they are intended to be determined in accordance with the test methods described ISO 21309‑2, if suitable.

In order to specify a thermoplastic material for a particular application or to ensure reproducible processing, additional requirements can be given in data block 4 and 5 (see Clause 4, introductory paragraph).