NS EN 1452-3 : 1999

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
      3.1 Definitions
      3.2 Symbols
4 Material
      4.1 Fitting material
      4.2 MRS-value
      4.3 Designation of fittings material
      4.4 Strength of injection-moulded material
      4.5 Material strength of fittings made from pipe
5 General characteristics
      5.1 Appearance
      5.2 Colour
      5.3 Opacity
6 Geometrical characteristics
      6.1 Measurement of dimensions
      6.2 Nominal diameters
      6.3 Fittings for solvent cementing
      6.4 Flange adapters and flanges
      6.5 Elastomeric ring seal fittings
      6.6 End-load-bearing double-sockets with
             elastomeric seals
7 Classification and operating conditions
      7.1 Classification
      7.2 Determination of the allowable operating
             pressure PFA for water up to 45 degree C
8 Mechanical characteristics
      8.1 Resistance to internal pressure of fittings or
             parts of fittings
      8.2 Crushing test
9 Physical characteristics
10 Chemical characteristics
11 Sealing rings
12 Adhesives
13 Performance requirements
14 Marking
      14.1 General
      14.2 Minimum required marking
      14.3 Additional marking
Annex A (normative) Imperial(inch)-sized fittings
Annex B (informative) Bibliography

Defines the characteristics of fittings made from unplasticized poly(vinyl chloride) (PVC-U) for piping systems used in the field of water supply.