NEN EN 13090 : 2000

Foreword
Introduction
1 Scope
2 Normative References
3 Terms and definitions
4 Requirements
      4.1 Requirements to be met by the sealant as
             received
             4.1.1 Effect on metals
             4.1.2 Effect on seals
             4.1.3 Effect on combustion behaviour of
                      fuel gases
      4.2 Requirements to be met by the sealant after
             assembly
             4.2.1 Sealing properties
                      4.2.1.1 Effect of gas condensate
                                 on sealants
                      4.2.1.2 Effect of vibration
             4.2.2 Disassembly of joints
5 Test material and documentation
      5.1 Test material
      5.2 Documentation
6 Test methods
      6.1 Test of sealants as received
             6.1.1 Test of corrosiveness
             6.1.2 Test of effect on seals
             6.1.3 Test of effect on the combustion
                      behaviour of fuel gases
      6.2 Test of sealants in test assemblies
             6.2.1 Test of sealing properties
                      6.2.1.1 Preparation of test
                                 assemblies
                      6.2.1.2 Sealing
                      6.2.1.3 Soundness test
                      6.2.1.4 Aging test
                      6.2.1.5 Test of resistance against
                                 gas condensate
                      6.2.1.6 Test of vibration resistance
      6.2.2 Dismantling
7 Marking
Annex A (informative) A-deviations

The test methods and properties of sealants used to reseal threaded joints of metallic gas pipework in buildings operated at a maximum allowed operating pressure of 100 mbar are defined in this Standard. NOTE: Gas pipework in buildings is in accordance with EN 1775 the pipework between the point of delivery and the inlet connection to the gas appliance. Applicable to sealants for threaded joints of metallic gas pipework, in buildings, carrying fuel gases of the 1st family (town gas), 2nd family (natural gas), and 3rd family (liquefied petroleum gases in the liquid state. Sealing materials for the installation of metallic threaded joints are specified in EN 751.