BS EN ISO 3949:2014 pdf free
BS EN ISO 3949:2014 pdf free.Plastics hoses and hose assemblies一Textile-reinforced types for hydraulic applications一Specification
BS EN ISO 3949 specifies requirements for three types of textile-reinforced thermoplastics hose and hose assembly of nominal size from 3,2 to 25. Each type is divided into two classes dependent on electrical conductivity requirements. They are suitable for use with water-based hydraulic fluids HFC, HFAE,HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from 0 °C to +60 °C and oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from – 40°C to +100 °C;
This International Standard does not include requirements for end fttings. It is limited to the performance of hoses and hose assemblies.
NOTE Operating temperatures in excess of 100 °C may materially reduce the life of the hose.The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1402, Rubber and plastics hoses and hose assemblies一Hydrostatic testing
ISO 1817, Rubber, vulcanized一Determination of the effect of liquids
ISO 4671, Rubber and plastics hoses and hose assemblies一Methods of measurement of the dimensions of hoses and the lengths of hose assemblies
ISo 4672:1997, Rubber and plastics hoses一Sub-ambient temperature flexibility tests
ISO 6743-4, Lubricants, industrial oils and related products (classL)一Classification一Part 4: Family H(Hydraulic systems)
ISO 6803, Rubber or plastics hoses and hose assemblies一Hydraulic-pressure impulse test without flexing
ISO 7326:2006, Rubber and plastics hoses一Assessment of ozone resistance under static conditions
ISO 8330, Rubber and plastics hoses and hose assemblies一Vocabulary
ISO 8331, Rubber and plastics hoses and hose assemblies一Guidelines for selection, storage, use and maintenance
Type tests are those tests required to confirm that a particular hose or hose assembly design, manufactured by a particular method from particular materials, meets all the requirements of this International Standard. The tests shall be repeated at a maximum of five-year intervals, or whenever a change in the method of manufacture or materials used occurs. They shall be performed on all sizes and on all classes and types except those of the same size and construction.BS EN ISO 3949 pdf download.
