STN EN ISO 21970-1
| Name: | STN EN ISO 21970-1 |
| Validity: | Valid |
| Number of pages: | 18 |
| Language: |
EN
|
| Paper: | 14,10€ |
| Electronic version |
a) Only read (without ability to print and copy)
12,69€ b) Without ability to print, with ability to copy (printscreen) 14,10€ c) With ability to print and copy (printscreen) 18,33€ |
| Slovak title | Plasty. Materiály z polyketónu (PK) na tvárnenie a vytláčanie. Časť 1: Systém označovania a základy na špecifikáciu (ISO 21970-1: 2019) |
| English title | Plastics - Polyketone (PK) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 21970-1:2019) |
| Release Date: | 01. 03. 2020 |
| Date of withdrawal: | |
| ICS: | 83.080.20 |
| Sorting character/National clasification code | 64 2420 |
| Level of incorporation: | idt EN ISO 21970-1:2019, idt ISO 21970-1:2019 |
| Official Journal | 02/20 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN ISO 21970-1:2019-03 (64 2420) |
| Note in Official Journal: | |
| Subject of the standard: | This document establishes a system of designation for polyketone (PK) moulding and extrusion materials which may be used as the basis for specifications. Polyketone polymer chains are built up from regularly alternating olefinic units and keto groups. The olefinic units shall be randomly distributed ethylene and propylene. The types of polyketone plastics are differentiated from each other by a classification system based on appropriate levels of the designatory properties, melting temperature, melt mass-flow rate, temperature of deflection under load and on information about the intended application and/or method of processing, important properties, additives, colour, fillers and reinforcing materials. |
| Preview: | Náhľad normy (PDF) |