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BS EN ISO 14557:2021

BS EN ISO 14557:2021

$142.49

Fire-fighting hoses. Rubber and plastics suction hoses and hose assemblies

Published By Publication Date Number of Pages
BSI 2021 26
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This document establishes the requirements and test methods for rubber and plastics suction hoses for fire-fighting purposes. These hoses can also be used manually to supply unpressurized water to the pump or for water discharge.

NOTE

All pressures are expressed in megapascals and in bar (1 MPa = 10 bar).

Additional requirements are specified for hose assemblies, that is, hoses with couplings already fitted, where this is carried out by the hose manufacturer (see Clause 8).

Type A (rubber) hoses are intended for use at a minimum temperature of ?20 °C and Type B (thermoplastics) hoses are intended for use at a minimum temperature of ?10 °C.

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
4.1 Type (hose construction)
4.2 Hose ends
5 Dimensions, tolerances and maximum mass
5.1 Inside diameter and maximum mass
9 5.2 Length and tolerance on length
6 Performance requirements of finished hose or hose assembly
6.1 Visual examination
6.2 Hydrostatic requirements
6.2.1 Deformation under proof pressure
10 6.2.2 Burst pressure
6.3 Adhesion (type A hoses only)
6.4 Low temperature flexibility
6.5 Ozone resistance (type A hoses only)
6.6 Bending resistance at ambient temperature
6.7 UV resistance (type B hoses only)
6.8 Loss in mass on heating (type B hoses only)
6.9 Vacuum resistance
11 6.10 Pressure impulse resistance (type B hoses only)
6.11 Reinforcement fracture resistance (type B hoses only)
6.12 Flexibility at ambient temperature
6.13 Vacuum resistance with flexing
7 Frequency of testing
12 8 Marking
8.1 Hose marking
8.2 Hose assembly marking
13 Annex A (normative) Test frequency for type tests and routine tests
14 Annex B (informative) Production acceptance tests
15 Annex C (normative) Pressure impulse test
18 Annex D (normative) Reinforcement fracture resistance test (type B hoses only)
20 Annex E (normative) Test for flexibility at ambient temperature
22 Annex F (normative) Test for vacuum resistance with flexing
23 Annex G (normative) Proof pressure test for hose assemblies
24 Bibliography

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BS EN ISO 14557:2021
$142.49