BS EN ISO 3994:2014 pdf free
BS EN ISO 3994:2014 pdf free.Plastics hoses – Specification
BS EN ISO 3994 specifies the requirements for three types of helical-thermoplastic-reinforced thermoplastics hoses for suction and discharge of water, weak aqueous chemical solutions and abrasive solids and slurries, for use in the ambient temperature range from -10 °C to 55。C.
The three types of hose are for light, medium- and heavy-duty applications.
The types of hoses covered in this International Standard are not intended for use with flammable or combustible materials, nor with aromatic solvents.
NOTE Hoses of a similar construction for suction and discharge for fire-fighting are specified in ISo 14557.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 37, Rubber, vulcanized or thermoplastic一Determination of tensile stress-strain properties
ISO 176:2005, Plastics一Determination of loss of plasticizers – – Activated carbon method
ISO 1307, Rubber and plastics hoses一Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hoses
ISO 1402, Rubber and plastics hoses and hose assemblies一Hydrostatic testing
ISO 8330, Rubber and plastics hoses and hose assemblies一Vocabulary
ISO 10619-1, Rubber and plastics hoses and tubing一Measurement of flexibility and sifness一Part 1: Bending tests at ambient temperature
ISO 10619-2, Rubber and plastics hoses and tubing一Measurement of flexibility and stiffness一Part 2: Bending tests at sub-ambient temperatures
ISO 30013, Rubber and plastics hoses一Methods of exposure to laboratory light sources一Determination of changes in colour, appearance and other physical properties
The hoses shall be as uniform as commercially practicable in colour and other physical properties. They shall consist of a flexible thermoplastics material supported within the material by a helix of thermoplastic material of a similar compatible property. The reinforcing and flexible components of the wall shall be fused together and free from visible cracks, porosity, foreign inclusions or other defects such as are liable to cause failure of the hose in service.
The inside diameters and tolerances of hoses of different nominal bores shall meet the requirements given in Table 1.
The tolerances on cut lengths shall be in accordance with ISO 1307.BS EN ISO 3994 pdf download.
