I.S. EN 1092-1:2007

National foreword
European foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Designation
5 General requirements
Annex A (normative) - Wall thickness and end preparation
        for flanges type 11, 34, 35, 36, 37 and pipe nominal
        thicknesses for the use with type 01 flanges
Annex B (informative) - Material groups
Annex C (informative) - Approximate masses of flanges
        and collars
Annex D (informative) - Additional materials
Annex E (normative) - Basis of flange calculation
Annex F (normative) - Determination of p/T ratings
Annex G (normative) - p/T ratings for a selection of EN
        materials
Annex H (informative) - Rings for flanges with groove
Annex I (informative) - Flanges with fixed inner diameter
Annex J (informative) - Mating dimensions for flanges
        with higher DN
Annex ZA (informative) - Relationship between this
         European Standard and the Essential Requirements
         of EU Directive 2014/68/EU Pressure Equipment
         Directive aimed to be covered
Bibliography

Defines the flange types and their facings, dimensions, tolerances, threading, bolt sizes, flange jointing face surface finish, marking, materials, pressure/temperature ratings and approximate flange masses.