This document 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 \u221210 \u00b0C to +40 \u00b0C.<\/p>\n
This document covers two types of hose, as follows:<\/p>\n
type 1: floating type, for delivery only, which includes flotation material to give the hose buoyancy;<\/p>\n<\/li>\n
type 2: submarine type for delivery and suction.<\/p>\n<\/li>\n<\/ul>\n
This document 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.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | European foreword <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 4 Classification 4.1 Classes 4.2 Grades <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 5 Materials and construction 5.1 Hoses 5.2 Flotation material <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 5.3 End fittings and end connections 6 Dimension and tolerances 6.1 Diameters <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 6.2 Hose assembly length 7 Physical properties 7.1 Rubber compounds 7.1.1 Abrasion resistance of lining 7.1.2 Tear strength of lining 7.1.3 Rebound resilience of lining 7.1.4 Ozone resistance of cover <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 7.2 Performance requirements 7.2.1 Hydrostatic requirements 7.2.2 Change in length 7.2.3 Bending test <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 7.2.4 Leakage of hose assemblies (proof pressure test) 7.2.5 Minimum reserve buoyancy <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 7.2.6 Flotation material recovery 7.2.7 Adhesion between components 7.2.8 Adhesion between end fitting and lining <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 7.2.9 Minimum tensile strength of empty hose assemblies 7.2.10 Vacuum resistance 7.2.11 Dimensions of flange and other connections 7.2.12 Visual examination 7.3 Frequency of testing <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 8 Test certificate or report 9 Marking 10 Recommendations for packaging and storage <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Annex A (normative) Type tests and routine tests <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Annex B (normative) Measurement of adhesion between end fitting and lining <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Annex C (normative) Hose assembly tensile-strength test <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Rubber hoses and hose assemblies, wire or textile reinforced, for dredging applications. Specification<\/b><\/p>\n |