Cookies
Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
ČSN EN ISO 20568-1 (643801)
Plasty - Fluoropolymerní disperze a materiály pro tváření - Část 1: Systém označování a základy pro specifikace (Norma k přímému použití jako ČSN).
NORMA vydaná dňa 1.12.2017
Informácie o norme:
Označenie normy: ČSN EN ISO 20568-1
Rozlišovací znak: 643801
Katalógové číslo: 503387
Dátum vydania normy: 1.12.2017
Kód tovaru: NS-802319
Počet strán: 28
Približná hmotnosť: 84 g (0.19 libier)
Krajina: Česká technická norma
Kategória: Technické normy ČSN
Kategórie - podobné normy:
Anotácia textu normy ČSN EN ISO 20568-1 (643801):
This document establishes a system of designation for fluoropolymer materials, which may be used as the basis for specifications. The various types of fluoropolymer are differentiated from each other by a classification system based on appropriate levels of the designatory properties and on information about the intended application and/or method of processing, important properties, additives, colorants, fillers and reinforcing materials. For polytetrafluoroethylene (PTFE) For PTFE granular moulding and ram extrusion materials, and for PTFE resin produced from coagulation of dispersion: - standard specific gravity (SSG) - bulk density - particle size For aqueous dispersion of PTFE - PTFE percentage in dispersion - surfactant percentage in dispersion - surfactant tolerance level For melt processable resins For CPT, ECTFE, EFEP, ETFE, FEP, PFA, PVDF, PVF, VDF/CTFE, VDF/HFP, VDF/TFE, VDF/TFE/HFP - melting-peak temperature - melt mass-flow rate For PCTFE - zero-strength time (ZST) For TFE/PDD - glass transition temperature (Tg) For aqueous dispersion of melt processable resins (ETFE, FEP, PFA, PVDF, PVF, VDF/CTFE, VDF/HFP, VDF/TFE, VDF/TFE/HFP) - polymer percentage in dispersion - surfactant percentage in dispersion - surfactant tolerance level The designation system is applicable to all fluoropolymers and blends. It applies to unmodified materials ready for normal use and materials modified, for example, by colorants, additives, fillers, reinforcing materials and polymer modifiers. 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 may 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 20568-2, if suitable. In order to specify a thermoplastic material for a particular specification, the requirements are to be given in data block 5
Náhľad normy ČSN EN ISO 20568-1 (643801)
Doporučujeme:
