UNI EN ISO 5771 : 2009

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Pressure rating
5 Materials and construction
   5.1 Lining
   5.2 Reinforcement
   5.3 Cover
   5.4 Hose assemblies
6 Dimensions
   6.1 Inside diameters and tolerances
   6.2 Outside diameter
   6.3 Concentricity
   6.4 Tolerances on length
7 Physical properties
   7.1 Rubber compounds
   7.2 Finished hose
   7.3 Ammonia resistance tests
8 Hose assembly delivery test and annual in-use
   test requirements
9 Frequency of testing
10 Marking
11 Packaging and storage
12 Test certificate
Annex A (normative) - Type and routine testing
        of production hoses and hose assemblies
Annex B (informative) - Periodic (quality control)
        testing of production hoses
Annex C (informative) - Recommendations for the
        lengths of hoses supplied in bulk and
        for tolerances on the lengths of hose
        assemblies
Bibliography

Describes the minimum requirements for rubber hoses used for transferring ammonia, in liquid or in gaseous form, at ambient temperatures from -40 degrees C up to and including +55 degrees C.