STN EN ISO 20028-1
| Name: | STN EN ISO 20028-1 |
| Validity: | Valid |
| Number of pages: | 24 |
| Language: |
EN
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| Slovak title | Plasty. Materiály z termoplastového polyesteru (TP) na tvárnenie a vytláčanie. Časť 1: Systém označovania a základy na špecifikáciu (ISO 20028-1: 2019) |
| English title | Plastics - Thermoplastic polyester (TP) moulding and extrusion materials - Part 1: Designation system and basis for specification (ISO 20028-1:2019) |
| Release Date: | 01. 04. 2020 |
| Date of withdrawal: | |
| ICS: | 83.080.20 |
| Sorting character/National clasification code | 64 3640 |
| Level of incorporation: | idt EN ISO 20028-1:2019, idt ISO 20028-1:2019 |
| Official Journal | 03/20 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN ISO 20028-1:2017-09 (64 3640) |
| Note in Official Journal: | |
| Subject of the standard: | 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. |
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