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ILNAS-EN ISO 21302-1:2019 Edition 06/2019
Plastics - Polybutene-1 (PB-1) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 21302-1:2019)
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Abstract

This document establishes a system of designation for polybutene-1 (PB-1) thermoplastic materials which can be used as the basis for specifications. For the sake of simplicity, the designation polybutene-1 and the abbreviation PB are used in this document. The types of polybutene plastics are differentiated from each other by a classification system based on appropriate levels of the designatory property melt volume-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 all butene-1 homopolymers and to copolymers of butene-1 with a maximum content of other 1-olefinic monomers of less than 50 g/kg (mass fraction) and with a content of non-olefinic monomers with functional groups up to a maximum of 3 g/kg (mass fraction). 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 specified in ISO 21302-2, if suitable. In order to specify a thermoplastic material for a particular application or to ensure reproducible processing, additional requirements are given in data block 5 (see 4.1).

Status

Standard - Active

Origin

Technical Committee :
CEN/TC 249 : Plastics

Implementation

start of the vote on the project    15/03/2018   date of ratification (dor)    12/05/2019
end of the vote on the project    05/06/2018   date of anouncement (doa)    30/09/2019
start of the vote on the final project    14/02/2019   date of publication (dop)    31/12/2019
end of the vote on the final project    11/04/2019   date of withdrawal (dow)    31/12/2019


Publication Official Journal
of the Grand-Duchy of Luxembourg
17/07/2019
Reference Mémorial A N° 508

Relations

Relations to older standards
ILNAS-EN ISO 8986-1:2009

Relations to international standards
ISO 21302-1 
ISO 21302-1:2019 

International Classification for Standards (ICS codes) :

83.080.20 : Thermoplastic materials

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