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BS EN ISO 3949:2020 2021

BS EN ISO 3949:2020 2021

$102.76

Plastics hoses and hose assemblies. Textile-reinforced types for hydraulic applications. Specification

Published By Publication Date Number of Pages
BSI 2021 20
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This document specifies requirements for three types of textile-reinforced thermoplastics hoses and hose assemblies 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:

  1. oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from ?40 °C to +93 °C;

  2. water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from 0 °C to +60 °C

  3. water at temperatures ranging from 0 °C to +60 °C.

This document does not include any requirements for end fittings. It is limited to the performance of hoses and hose assemblies.

NOTE

It is the responsibility of the user, in consultation with the hose manufacturer, to establish the compatibility of the hose with the fluid to be used.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
8 4 Classification
5 Materials and construction
5.1 Hoses
5.2 Hose assemblies
6 Dimensions and tolerances
6.1 Diameters
9 6.2 Concentricity
7 Physical properties
7.1 Hydrostatic requirements
10 7.2 Change in length
11 7.3 Minimum bend radius
7.4 Resistance to impulse
7.5 Leakage of hose assemblies
12 7.6 Cold flexibility
7.7 Ozone resistance
7.8 Electrical conductivity
7.9 Fluid resistance
7.9.1 Test pieces
7.9.2 Oil resistance
7.9.3 Water-based fluid resistance
7.9.4 Water resistance
7.10 Visual examination
8 Frequency of testing
13 9 Designation
10 Marking
10.1 Hoses
10.2 Hose assemblies
11 Recommendations for packing and storage
12 Recommendations for length of supplied hoses and tolerances on lengths of hose assemblies
14 13 Test certificate
15 Annex A (normative) Type and routine testing of hoses
16 Annex B (informative) Production testing
17 Annex C (informative) Recommendations for lengths of supplied hoses and tolerances on lengths of hose assemblies
18 Annex D (normative) Test method for electrical conductivity
19 Bibliography

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BS EN ISO 3949:2020 2021
$102.76