EN ISO 13000-1:2005

Foreword
1 Scope
2 Normative references
3 Terminology
  3.1 Terms and definitions
  3.2 Abbreviated terms and symbols
4 Requirements for PTFE semi-finished products
  4.1 General
  4.2 Dimensions and dimensional tolerances
  4.3 Tensile strength and percentage elongation at
      break
  4.4 Dimensional stability
  4.5 Density
  4.6 Hardness
  4.7 Colour
  4.8 Dielectric strength (DS), breakdown voltage
      and electrical flaws
  4.9 Requirements that may be specified depending
      on the specific application
5 Format for presenting a specification
  5.1 General
  5.2 Order of presenting codes
  5.3 Examples of coding a specification
Annex A (informative) Standard specifications for
        semi-finished products of polytetrafluoroethylene

ISO 13000-1:2005 specifies the requirements for processed unfilled polytetrafluoroethylene (PTFE) products which may occur in several forms. The PTFE used to make the semi-finished product is described in ISO 12086-1 and, as provided in ISO 12086-1, may contain up to 1 % of a comonomer. The PTFE used to make the semi-finished product may be virgin, reprocessed or recycled resin. The addition of up to 1,5 % by mass of pigment or colorant is permitted. This part of ISO 13000 allows for four grades based on tensile strength and elongation at break. The semi-finished products can be as-processed (type P) or dimensionally stabilized (type S) and may also have specified electrical properties or other properties when they are required for an application.