NEN EN 12560-6 : 2004

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Designations
  4.1 Range of class designations
  4.2 Range of gasket sizes
  4.3 Gasket types
  4.4 Information to be supplied by the purchaser
5 Constructional details
  5.1 General details
  5.2 Core
      5.2.1 Core materials
      5.2.2 Core welding
      5.2.3 Dressing of core welds
      5.2.4 Core flatness
  5.3 Serrations
  5.4 Location rings
      5.4.1 Integral ring
      5.4.2 Loose ring
  5.5 Facing materials
  5.6 Facing weight per unit area
  5.7 Attachment of facing
      5.7.1 Methods of attachment
      5.7.2 De-greasing of core
      5.7.3 Number of joins
      5.7.4 Excessive facing
  5.8 Integrity of facing attachment
  5.9 Typical construction details
6 Dimensions
7 Marking
8 Colour coding
9 Packaging
Annex A (informative) Information to be supplied by the purchaser
Annex B (informative) The use of metric bolting with class designated
        covered serrated metal gaskets
      B.1 General
      B.2 Comparable imperial & metric bolt sizes
      B.3 Gasket assembly guidance with metric bolting
      B.4 Imperial/metric bolt comparisons
Bibliography

Specifies the construction, dimensions and marking of covered serrated metal gaskets for use with flanges complying with prEN 1759-1 for Class 150, Class 300, Class 600, Class 900, Class 1500 and Class 2500 up to and including NPS 24.