BS EN ISO 20028-1:2019 - Plastics. Thermoplastic polyester (TP) moulding and extrusion materials. Designation system and basis for specification

BS EN ISO 20028-1:2019

Plastics. Thermoplastic polyester (TP) moulding and extrusion materials. Designation system and basis for specification

Status : Current   Published : November 2019

Format
PDF

Format
HARDCOPY



This document establishes a system of designation for thermoplastic polyester (TP) material, which can be used as the basis for specifications. It covers polyester homopolymers for moulding and extrusion based on poly(ethylene terephthalate) (PET), poly(butylene terephthalate) (PBT), poly(cyclohexylenedimethylene terephthalate) (PCT), poly(ethylene naphthalate) (PEN), poly(butylene naphthalates) (PBN) and other TP-types and copolyesters of various compositions for moulding and extrusion. The types of thermoplastic polyester are differentiated from each other by a classification system based on appropriate levels of the designatory properties: a) viscosity number; b) tensile modulus of elasticity; 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 thermoplastic polyester homopolymers and copolymers. 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. This document does not apply to the saturated polyester/ester and polyether/ester thermoplastic elastomers covered by ISO 20029. 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 20028-2, if suitable. In order to designate a thermoplastic polyester material to meet particular specifications, the requirements are to be given in data block 5 (see 4.1).




Standard NumberBS EN ISO 20028-1:2019
TitlePlastics. Thermoplastic polyester (TP) moulding and extrusion materials. Designation system and basis for specification
StatusCurrent
Publication Date06 November 2019
Normative References(Required to achieve compliance to this standard)ISO 20028-2, ISO 1628-5, ISO 1043-1, ISO 1043-4, ISO 1043-2
Informative References(Provided for Information)ASTM D5927, ISO 20029-2, ISO 20029-1, ISO 16396-1
ReplacesBS EN ISO 20028-1:2017
International RelationshipsEN ISO 20028-1:2019
Draft Superseded By18/30380292 DC18/30388393 DC
DescriptorsExtruding, Designations, Chemical composition, Plastics, Thermoplastic polymers, Symbols, Physical properties of materials, Polyesters, Reinforcing materials, Fillers, Codes, Moulding (process), Modulus of elasticity, Viscosity, Moulded materials, Data blocks, Polymers
ICS83.080.20
Title in FrenchPlastiques. Matériaux polyesters thermoplastiques (TP) pour moulage et extrusion Système de désignation et base de spécification
Title in GermanKunststoffe. Thermoplastische Polyester (TP)-Werkstoffe Bezeichnungssystem und Basis für Spezifikationen
CommitteePRI/82
ISBN978 0 539 01651 2
PublisherBSI
FormatA4
DeliveryYes
Pages22
File Size797 KB
Price£130.00


 Your basket
Your basket is empty

Multi-user access to over 3,500 medical device standards, regulations, expert commentaries and other documents


BSOL

The faster, easier way to work with standards


Develop a PAS

Develop a fast-track standardization document in 9-12 months


Worldwide Standards
We can source any standard from anywhere in the world