EN 60674-3-7:1998

FOREWORD
INTRODUCTION
1 General
   1.1 Scope
   1.2 Normative references
   1.3 Classification
2 Designation
3 General requirements
4 Dimensions
   4.1 Thickness
   4.2 Width
5 Properties
   5.1 Properties not dependent on thickness
   5.2 Properties dependent on thickness
   5.3 Other properties
6 Roll characteristics for all types
   6.1 Roll diameter/film length
   6.2 Windability/sag
   6.3 Joins
   6.4 Roll width
   6.5 Cores
Annex ZA (normative) Normative references to international
                     publications with their corresponding
                     European publications

Gives the requirements for copolymers of tetrafluoroethylene (TFE) and hexafluoropropylene (HFP), conventionally described as fluoroethylene-propylene (FEP), as films, with or without surface treatment to render the surface cementable and heat sealable, for type 1: General purpose; for type 2A: One side treated; for type 2B: Two sides treated.