UNI EN ISO 14557 : 2008
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
FIRE-FIGHTING HOSES - RUBBER AND PLASTICS SUCTION HOSES AND HOSE ASSEMBLIES
08-07-2021
01-01-2008
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
4.1 Type (hose construction)
4.2 Hose ends
5 Dimensions, tolerances and maximum mass
5.1 Inside diameter and maximum mass
5.2 Length and tolerances on length
6 Performance requirements of finished hose
6.1 Hydrostatic requirements
6.1.1 Deformation under proof pressure
6.1.2 Burst pressure
6.2 Adhesion (type A hoses only)
6.3 Low temperature flexibility
6.4 Ozone resistance (type A hoses only)
6.5 Bending resistance
6.6 UV-resistance (xenon arc lamp) (type B hoses only)
6.7 Loss in mass on heating (type B hoses only)
6.8 Vacuum resistance
6.9 Pressure impulse resistance (type B hoses only)
6.10 Reinforcement fracture resistance
(type B hoses only)
6.11 Flexibility at ambient temperature
6.12 Vacuum resistance with flexing
7 Frequency of testing
8 Marking
9 Hose assemblies
Annex A (normative) Pressure impulse test
A.1 Test pieces
A.2 Apparatus
A.3 Test fluid
A.4 Conditioning
A.5 Procedure
A.6 Test report
Annex B (normative) Reinforcement fracture resistance
test (type B hoses only)
B.1 Test pieces
B.2 Apparatus
B.3 Conditioning
B.4 Procedure
B.5 Test report
Annex C (normative) Test for flexibility at ambient temperature
C.1 Test piece
C.2 Apparatus
C.2.1 Vertical slings, to suspend the test piece at least 600
mm below a beam
C.2.2 Straight edge, at least the length of the test piece
C.2.3 Weight or force, capable of applying 450 N
C.2.4 Rule or steel measuring tape
C.3 Procedure
C.4 Test report
Annex D (normative) Test for vacuum resistance with flexing
D.1 Test piece
D.2 Apparatus
D.2.1 Flat table, with one edge rounded to 25 mm radius
D.2.2 Weight or force, equivalent to the mass of two pieces
D.2.3 Vacuum source
D.3 Procedure
D.4 Test report
Annex E (normative) Test for hose assemblies
E.1 Test piece
E.2 Procedure
Annex F (informative) Recommended minimum frequencies of
testing
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
Bibliography
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