Norm

NEN-EN-ISO 12086-1:2004 Ontw. en

Kunststoffen - Dispersies, spuitgiet- en extrusiematerialen van fluoropolymeren - Deel 1: Aanduidingssysteem en basis voor specificaties

  • Deze norm is ingetrokken sinds 06-03-2006

17,55

Over deze norm

Status Ingetrokken
Aantal pagina's 35
Commissie Kunststoffen
Gepubliceerd op 01-02-2004
Taal Engels
IS0 12086-1 establishes a system of designation for fluoropolymer materials that may be used as the basis for specifications. It covers the homopolymers and various copolymers of fluoromonomers used as dispersions and for moulding, extrusion, and other specialized applications. This part describes the designation system and provides codes and tables of values for the designatory properties. The designation system is applicable both to conventional thermoplastic fluoropolymers, processed by various techniques, and those materials that are pro- cessed by the unique operations required for the non-conventional thermoplastic polytetrafluoroethylene. The materials include both the fluorocarbon polymers and the various other fluoropolymers as virgin polymers or processed for reuse or recycling. This part of IS0 12086 also includes an extension of the designation system that provides a basis for specification of the materials. This basis for specification may be used to prepare specifications related to well defined applications. These specifications will use data blocks 1 to 4 and, if necessary, data block 5 as a complement, the last-mentioned data block containing the specific requirements in relation to the application. Fluoroelastomers are specifically excluded. Fluoropolymers are long-chain homopolymers and copolymers of fluoromonomers. Fluoropolymers can be modified with small amounts of different fluoromonomers. In general, provided the polymer is not modified with more than five percent by mass of modifying fluoromonomer(s), it can be classed as the base polymer. PVDF is classed as the base polymer when it is modified during polymerization with up to two percent by mass of additional fluoromonomers) in the polymer structure. For PTFE, up to one percent by mass of a modifying comonomer is the limit for the material to be classed as polytetrafluoroethylene. A general discussion of members of the fluoropolymer family is included in informative annex C. This part of IS0 12086 is particularly concerned with, but is not limited to, the materials listed in 4.2. The accepted abbreviated term for each material is included in 4.2. The various types of fluoropolymer are differentiated from each other by a classification system based on the fluoropolymer genus and appropriate levels of the designatory properties, along with information about basic polymer parameters, intended application or method of processing, important properties, additives, colorants, fillers, and reinforcing materials. Designatory properties for each fluoropolymer are selected from the general list in 5.3 and those properties to be designated for each fluoropolymer are listed in 5.6 and in normative annexes A and B.

Details

ICS-code 83.080.20
Nederlandse titel Kunststoffen - Dispersies, spuitgiet- en extrusiematerialen van fluoropolymeren - Deel 1: Aanduidingssysteem en basis voor specificaties
Engelse titel Plastics - Fluoropolymer dispersions and moulding and extrusion materials - Part 1: Designation system and basis for specifications
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