NF EN 12434 : 2001

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
      4.1 Design and construction
      4.2 Materials
      4.3 Cleanliness
      4.4 Mechanical properties
             4.4.1 Burst pressure
             4.4.2 Pressure cycles
             4.4.3 Bending
             4.4.4 Resistance to abuse
             4.4.5 Low temperature resistance
             4.4.6 Leak tightness
             4.4.7 Electrical properties
5 Hose sample tests
      5.1 General
      5.2 Non-destructive tests and inspection
             5.2.1 Identification of materials
             5.2.2 Dimensional check
             5.2.3 Cleanliness check
             5.2.4 Pressure test
             5.2.5 Leak tests
             5.2.6 Crushing test
      5.3 Destructive tests
             5.3.1 Hydraulic pressure cycling
             5.3.2 Rolling bend cycling test
             5.3.3 Hydraulic bursting test
             5.3.4 Examination of sectional cut
6 Production testing
      6.1 Pressure test
      6.2 Leak test
7 Marking
8 Cleaning
9 Periodic examination
10 Test certificate
Annex A (normative) Typical hose assembly
Annex B (normative) Rolling bend cycling test for metallic
                    hose assemblies and hose assemblies
                    made of materials with a record of
                    satisfactory use in cryogenic service
Annex C (normative) Rolling bend cycling test for hose
                    assemblies constructed from materials
                    or composites not commonly used in
                    cryogenic service
Annex D (informative) Guidelines for periodic examination
                      of transfilling hoses
Annex ZA (informative) Clauses of this European Standard
                       addressing essential requirements
                       or other provisions of EU directives

Specifies the design, construction, type and production testing, and marking requirements for non insulated cryogenic flexible hose for use in the transfer of cryogenic fluids within the following range of operating conditions: - maximum nominal pressure: 80 bar; - nominal size (DN): from 10 to 100; - working temperature: from -270 to +65 degree C.