EN ISO 28017:2018

European foreword
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Materials and construction
6 Dimension and tolerances
7 Physical properties
8 Test certificate or report
9 Marking
10 Recommendations for packaging and storage
Annex A (normative) - Type tests and routine tests
Annex B (normative) - Measurement of adhesion
        between end fitting and lining.
Annex C (normative) - Hose assembly tensile-strength test
Bibliography

ISO 28017:2018 specifies requirements for two types, seven classes and three grades of wire- or textile-reinforced dredging hoses with nominal sizes ranging from 100 to 1 200. Within each class, all grades and sizes have the same maximum working pressure. Such hoses are suitable for the delivery or suction of seawater or freshwater mixed with silt, sand, coral and small stones with a specific gravity in the range from 1,0 to 2,3 at ambient temperatures ranging from −10 °C to +40 °C.ISO 28017:2018 covers two types of hose, as follows:- type 1: floating type, for delivery only, which includes flotation material to give the hose buoyancy;- type 2: submarine type for delivery and suction.ISO 28017:2018 does not specify requirements concerning the service life of hoses or hose assemblies. Specifying such requirements is the responsibility of the customer, in consultation with the hose manufacturer.