Fire-fighting hoses - Rubber and plastics suction hoses and hose assemblies (ISO 14557:2021)

Feuerlöschschläuche - Saugschläuche aus Gummi und Kunststoff (ISO 14557:2021)

Dieses Dokument legt Anforderungen an und Prüfverfahren für Saugschläuche aus Gummi und Kunststoff für die Brandbekämpfung fest. Diese Schläuche können auch für die manuelle Zuführung von drucklosem Wasser zur Pumpe oder zur Wasserabgabe verwendet werden.
ANMERKUNG   Sämtliche Drücke werden in Megapascal und in bar angegeben (1 MPa = 10 bar).
Zusätzliche Anforderungen werden für Schlauchleitungen, d. h. Schläuche mit bereits montierten Kupplungen, für den Fall festgelegt, dass der Einband durch den Schlauchhersteller erfolgte (siehe Abschnitt 8).
Schläuche des Typs A (Gummi) sind für den Einsatz bis zu einer niedrigsten Temperatur von −20 °C und Schläuche des Typs B (Thermoplaste) für den Einsatz bis zu einer niedrigsten Temperatur von −10 °C vorgesehen.

Tuyaux de lutte contre l'incendie - Tuyaux d'aspiration et flexibles en caoutchouc et en plastique (ISO 14557:2021)

Gasilske cevi - Gumene in polimerne sesalne cevi in cevni priključki (ISO 14557:2021)

General Information

Status
Published
Public Enquiry End Date
19-Apr-2020
Publication Date
29-Jun-2021
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
14-Jun-2021
Due Date
19-Aug-2021
Completion Date
30-Jun-2021

RELATIONS

Buy Standard

Standard
SIST EN ISO 14557:2021
English language
25 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day
Draft
oSIST prEN ISO 14557:2020
English language
22 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN ISO 14557:2021
01-september-2021
Nadomešča:
SIST EN ISO 14557:2003
SIST EN ISO 14557:2003/A1:2008
Gasilske cevi - Gumene in polimerne sesalne cevi in cevni priključki (ISO
14557:2021)
Fire-fighting hoses - Rubber and plastics suction hoses and hose assemblies (ISO
14557:2021)
Feuerlöschschläuche - Saugschläuche aus Gummi und Kunststoff (ISO 14557:2021)

Tuyaux de lutte contre l'incendie - Tuyaux d'aspiration et flexibles en caoutchouc et en

plastique (ISO 14557:2021)
Ta slovenski standard je istoveten z: EN ISO 14557:2021
ICS:
13.220.10 Gašenje požara Fire-fighting
23.040.70 Gumene cevi in armature Hoses and hose assemblies
SIST EN ISO 14557:2021 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 14557:2021
---------------------- Page: 2 ----------------------
SIST EN ISO 14557:2021
EN ISO 14557
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2021
EUROPÄISCHE NORM
ICS 13.220.10; 83.140.40 Supersedes EN ISO 14557:2002
English Version
Fire-fighting hoses - Rubber and plastics suction hoses and
hose assemblies (ISO 14557:2021)

Tuyaux de lutte contre l'incendie - Tuyaux d'aspiration Feuerlöschschläuche - Saugschläuche aus Gummi und

et flexibles en caoutchouc et en plastique (ISO Kunststoff (ISO 14557:2021)
14557:2021)
This European Standard was approved by CEN on 4 April 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14557:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 14557:2021
EN ISO 14557:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 14557:2021
EN ISO 14557:2021 (E)
European foreword

This document (EN ISO 14557:2021) has been prepared by Technical Committee ISO/TC 45 "Rubber

and rubber products" in collaboration with Technical Committee CEN/TC 192 “Fire and Rescue Service

Equipment” the secretariat of which is held by BSI.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by November 2021, and conflicting national standards

shall be withdrawn at the latest by November 2021.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 14557:2002.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 14557:2021 has been approved by CEN as EN ISO 14557:2021 without any modification.

---------------------- Page: 5 ----------------------
SIST EN ISO 14557:2021
---------------------- Page: 6 ----------------------
SIST EN ISO 14557:2021
INTERNATIONAL ISO
STANDARD 14557
Second edition
2021-04
Fire-fighting hoses — Rubber and
plastics suction hoses and hose
assemblies
Tuyaux de lutte contre l'incendie — Tuyaux d'aspiration et flexibles
en caoutchouc et en plastique
Reference number
ISO 14557:2021(E)
ISO 2021
---------------------- Page: 7 ----------------------
SIST EN ISO 14557:2021
ISO 14557:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 14557:2021
ISO 14557:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope .................................................................................................................................................................................................................................1

2 Normative references ......................................................................................................................................................................................1

3 Terms and definitions .....................................................................................................................................................................................1

4 Classification ............................................................................................................................................................................................................ 2

4.1 Type (hose construction) ............................................................................................................................................................... 2

4.2 Hose ends ......... ............................................................................................................................................................................................ 2

5 Dimensions, tolerances and maximum mass ......................................................................................................................... 2

5.1 Inside diameter and maximum mass................................................................................................................................... 2

5.2 Length and tolerance on length ................................................................................................................................................ 3

6 Performance requirements of finished hose or hose assembly ..........................................................................3

6.1 Visual examination .............................................................................................................................................................................. 3

6.2 Hydrostatic requirements ............................................................................................................................................................. 3

6.2.1 Deformation under proof pressure .................................................................................................................. 3

6.2.2 Burst pressure .................................................................................................................................................................... 4

6.3 Adhesion (type A hoses only) ..................................................................................................................................................... 4

6.4 Low temperature flexibility ......................................................................................................................................................... 4

6.5 Ozone resistance (type A hoses only) ................................................................................................................................. 4

6.6 Bending resistance at ambient temperature ................................................................................................................. 4

6.7 UV resistance (type B hoses only) .......................................................................................................................................... 4

6.8 Loss in mass on heating (type B hoses only) ................................................................................................................ 4

6.9 Vacuum resistance ............................................................................................................................................................................... 4

6.10 Pressure impulse resistance (type B hoses only) ..................................................................................................... 5

6.11 Reinforcement fracture resistance (type B hoses only) ...................................................................................... 5

6.12 Flexibility at ambient temperature ....................................................................................................................................... 5

6.13 Vacuum resistance with flexing ................................................................................................................................................ 5

7 Frequency of testing ..........................................................................................................................................................................................5

8 Marking ..........................................................................................................................................................................................................................6

8.1 Hose marking ........................................................................................................................................................................................... 6

8.2 Hose assembly marking .................................................................................................................................................................. 6

Annex A (normative) Test frequency for type tests and routine tests ...............................................................................7

Annex B (informative) Production acceptance tests ............................................................................................................................8

Annex C (normative) Pressure impulse test .................................................................................................................................................9

Annex D (normative) Reinforcement fracture resistance test (type B hoses only) ..........................................12

Annex E (normative) Test for flexibility at ambient temperature ......................................................................................14

Annex F (normative) Test for vacuum resistance with flexing ...............................................................................................16

Annex G (normative) Proof pressure test for hose assemblies ..............................................................................................17

Bibliography .............................................................................................................................................................................................................................18

© ISO 2021 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 14557:2021
ISO 14557:2021(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 45, Rubber and rubber products,

Subcommittee SC 1, Rubber and plastics hoses and hose assemblies, in collaboration with the European

Committee for Standardization (CEN) Technical Committee CEN/TC 192, Fire and Rescue Service

Equipment, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna

Agreement).

This second edition cancels and replaces the first edition (ISO 14557:2002), which has been technically

revised. It also incorporates the Amendment ISO 14557:2002/Amd.1:2007.
The main changes compared to the previous edition are as follows:
— pressure units in bar were added throughout the document, as needed;
— Clause 2 (Normative references) was updated;
— UV resistance requirement was added in 6.7;

— Clause 7 on frequency of testing was added and all subsequent clauses were renumbered;

— Annexes A and B were added and all subsequent annexes were renumbered.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 14557:2021
INTERNATIONAL STANDARD ISO 14557:2021(E)
Fire-fighting hoses — Rubber and plastics suction hoses
and hose assemblies
1 Scope

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.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 176:2005, Plastics — Determination of loss of plasticizers — Activated carbon method

ISO 1307, Rubber and plastics hoses — Hose sizes, minimum and maximum inside diameters, and tolerances

on cut-to-length hoses
ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing

ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of

hoses and the lengths of hose assemblies

ISO 7233, Rubber and plastics hoses and hose assemblies — Determination of resistance to vacuum

ISO 7326:2016, Rubber and plastics hoses — Assessment of ozone resistance under static conditions

ISO 8033, Rubber and plastics hoses — Determination of adhesion between components

ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary

ISO 10619-1:2017, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —

Part 1: Bending tests at ambient temperature

ISO 10619-2:2017, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —

Part 2: Bending tests at sub-ambient temperatures

ISO 30013:2011, Rubber and plastics hoses — Methods of exposure to laboratory light sources —

Determination of changes in colour, appearance and other physical properties
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 8330 apply.

© ISO 2021 – All rights reserved 1
---------------------- Page: 11 ----------------------
SIST EN ISO 14557:2021
ISO 14557:2021(E)

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Classification
4.1 Type (hose construction)
Type A hoses shall consist of:

a) a rubber lining uniform in thickness, reasonably concentric and free from holes, porosity and other

defects;
b) a textile reinforcement applied uniformly by any suitable method;

c) an embedded wire helix or helices evenly and uniformly applied and made from metallic material

that allows the hose to meet the specification requirements;

d) a rubber cover, ozone resistant, uniform in quality and thickness and free from defects.

Type B hoses shall consist of a flexible, thermoplastics material supported in its mass by a helix of rigid

polymeric material. The reinforcement and flexible components of the hose wall shall be fixed and free

from cracks, porosity, foreign inclusions or other defects.
4.2 Hose ends

The hose ends shall be compatible with suction hose couplings conforming to the relevant national

standards.

Where soft ends or wire-free ends are used for type A hoses, they should have an additional rubberized

textile reinforcement applied as a cuff over the wire-free portion and the first turn of the embedded

wire helix.
The hose ends should be capped or sealed to prevent ingress of water.

Specifying the dimensions of the soft or wire-free ends may be the subject of an agreement between the

manufacturer and the purchaser.
5 Dimensions, tolerances and maximum mass
5.1 Inside diameter and maximum mass

The dimensions of the hose and tolerances, when measured in accordance with ISO 4671, shall conform

to the requirements given in Table 1. The mass per metre of length of the hose shall be in accordance

with Table 1.

Table 1 — Inside diameter, tolerances on inside diameter and maximum mass per unit length

Inside diameter Tolerances for inside Maximum mass per unit length
mm diameter kg/m
Type A Type B
45 −0,2 to +1
...

SLOVENSKI STANDARD
oSIST prEN ISO 14557:2020
01-april-2020
Gasilske cevi - Gumene in plastične sesalne cevi in cevni priključki (ISO/DIS
14557:2020)

Fire-fighting hoses - Rubber and plastics suction hoses and hose assemblies (ISO/DIS

14557:2020)

Feuerlöschschläuche - Saugschläuche aus Gummi und Kunststoff (ISO/DIS 14557:2020)

Tuyaux de lutte contre l'incendie - Tuyaux d'aspiration et flexibles en caoutchouc et en

plastique (ISO/DIS 14557:2020)
Ta slovenski standard je istoveten z: prEN ISO 14557
ICS:
13.220.10 Gašenje požara Fire-fighting
23.040.70 Gumene cevi in armature Hoses and hose assemblies
oSIST prEN ISO 14557:2020 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 14557:2020
---------------------- Page: 2 ----------------------
oSIST prEN ISO 14557:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 14557
ISO/TC 45/SC 1 Secretariat: DIN
Voting begins on: Voting terminates on:
2020-02-07 2020-05-01
Fire-fighting hoses — Rubber and plastics suction hoses
and hose assemblies

Tuyaux de lutte contre l'incendie — Tuyaux d'aspiration et flexibles en caoutchouc et en plastique

ICS: 83.140.40; 13.220.10
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 14557:2020(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2020
---------------------- Page: 3 ----------------------
oSIST prEN ISO 14557:2020
ISO/DIS 14557:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 14557:2020
ISO/DIS 14557:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Classification ............................................................................................................................................................................................................2

4.1 Type (hose construction) ............................................................................................................................................................... 2

4.2 Hose ends ......... ............................................................................................................................................................................................ 2

5 Dimensions, tolerances and maximum mass .........................................................................................................................2

5.1 Inside diameter and maximum mass................................................................................................................................... 2

5.2 Length and tolerance on length ................................................................................................................................................ 3

6 Performance requirements of finished hose or hose assembly ..........................................................................3

6.1 Visual examination .............................................................................................................................................................................. 3

6.2 Hydrostatic requirements ............................................................................................................................................................. 3

6.2.1 Deformation under proof pressure .................................................................................................................. 3

6.2.2 Burst pressure .................................................................................................................................................................... 4

6.3 Adhesion (type A hoses only) ..................................................................................................................................................... 4

6.4 Low temperature flexibility ......................................................................................................................................................... 4

6.5 Ozone resistance (type A hoses only) ................................................................................................................................. 4

6.6 Bending resistance at ambient temperature ................................................................................................................. 4

6.7 UV resistance ‑ xenon arc lamp (type B hoses only) .............................................................................................. 4

6.8 Loss in mass on heating (type B hoses only) ................................................................................................................ 4

6.9 Vacuum resistance ............................................................................................................................................................................... 4

6.10 Pressure impulse resistance (type B hoses only) ..................................................................................................... 5

6.11 Reinforcement fracture resistance (type B hoses only) ...................................................................................... 5

6.12 Flexibility at ambient temperature ....................................................................................................................................... 5

6.13 Vacuum resistance with flexing ................................................................................................................................................ 5

7 Frequency of testing .......................................................................................................................................................................................... 5

8 Marking ..........................................................................................................................................................................................................................6

8.1 Hose marking ........................................................................................................................................................................................... 6

8.2 Hose assembly marking .................................................................................................................................................................. 6

Annex A (normative) Test frequency for type tests and routine tests ............................................................................... 7

Annex B (informative) Production acceptance tests ............................................................................................................................8

Annex C (normative) ................................................................................................................................................................9

Pressure impulse test

Annex D (normative) Reinforcement fracture resistance test (type B hoses only) ..........................................11

Annex E (normative) ...................................................................................................................13

Test for flexibility at ambient temperature

Annex F (normative) ..........................................................................................................................15

Test for vacuum resistance with flexing

Annex G (normative) ........................................................................................................................16

Proof pressure test for hose assemblies

Bibliography .............................................................................................................................................................................................................................17

© ISO 2020 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 14557:2020
ISO/DIS 14557:2020(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: www .iso .org/ iso/ foreword .html.

This document was prepared by the European Committee for Standardization (CEN) in collaboration

with Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses (rubber

and plastics), in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna

Agreement).

This second edition cancels and replaces the first edition (ISO 14557:2002), which has been technically

revised. The main changes compared to the previous edition are as follows:

— The document was reformatted and includes the changes in ISO 14557 Amendment 1 of 2007.

— Pressure units in bar were added throughout the document, as needed.
— Clause 2 (Normative references) were updated.
— Clause 6.6 (UV‑resistance) requirement comment was added.

— Clause 7 (Frequency of testing) was added and all following clause numbers were updated.

— Annex A (Test frequency for type tests and routine testes) and Annex B (Production acceptance

tests) were added and all other annex numbers were updated.
iv © ISO 2020 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 14557:2020
ISO/DIS 14557:2020(E)
Introduction

This document specifies fire service suction hoses for fire‑fighting. It can also be used manually to

supply unpressurized water to the pump or for water discharge.
© ISO 2020 – All rights reserved v
---------------------- Page: 7 ----------------------
oSIST prEN ISO 14557:2020
---------------------- Page: 8 ----------------------
oSIST prEN ISO 14557:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 14557:2020(E)
Fire-fighting hoses — Rubber and plastics suction hoses
and hose assemblies
1 Scope

This document gives requirements and test methods for rubber and plastics suction hoses for

fire‑fighting purposes.
NOTE 1 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.

NOTE 2 Hoses for use at temperatures lower than those specified above can be supplied by agreement between

the manufacturer and purchaser. In this case, the low temperature flexibility test (see 6.3) should be carried out

at the specified temperature.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 176:2005, Plastics — Determination of loss of plasticizers — Activated carbon method

ISO 1307, Rubber and plastics hoses — Hose sizes, minimum and maximum inside diameters, and tolerances

on cut-to-length hoses
ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing

ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of

hoses and the lengths of hose assemblies

ISO 7233, Rubber and plastics hoses and hose assemblies — Determination of resistance to vacuum

ISO 7326:2016, Rubber and plastics hoses — Assessment of ozone resistance under static conditions

ISO 8033, Rubber and plastics hoses — Determination of adhesion between components

ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary

ISO 10619-1:2017, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —

Part 1: Bending tests at ambient temperature

ISO 10619-2:2017, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —

Part 2: Bending tests at sub-ambient temperatures

ISO 30013:2011, Rubber and plastics hoses — Methods of exposure to laboratory light sources —

Determination of changes in colour, appearance and other physical properties
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 8330 apply.

© ISO 2020 – All rights reserved 1
---------------------- Page: 9 ----------------------
oSIST prEN ISO 14557:2020
ISO/DIS 14557:2020(E)

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Classification
4.1 Type (hose construction)
Type A hoses shall consist of:

a) a rubber lining uniform in thickness, reasonably concentric and free from holes, porosity and other

defects;
b) a textile reinforcement applied uniformly by any suitable method;

c) an embedded wire helix or helices evenly and uniformly applied and made from metallic material

that allows the hose to meet the specification requirements;

d) a rubber cover, ozone resistant, uniform in quality and thickness and free from defects.

Type B hoses shall consist of a flexible, thermoplastics material supported in its mass by a helix of rigid

polymeric material. The reinforcement and flexible components of the hose wall shall be fixed and free

from cracks, porosity, foreign inclusions or other defects.
4.2 Hose ends

The hose ends shall be compatible with suction hose couplings conforming to the relevant national

standards.

NOTE Where soft ends or wire‑free ends are used for type A hoses, they should have an additional rubberized

textile reinforcement applied as a cuff over the wire‑free portion and the first turn of the embedded wire helix.

The hose ends should be capped or sealed to prevent ingress of water.

Specifying the dimensions of the soft or wire‑free ends may be the subject of an agreement between the

manufacturer and the purchaser.
5 Dimensions, tolerances and maximum mass
5.1 Inside diameter and maximum mass

The dimensions of the hose and tolerances, when measured in accordance with ISO 4671, shall conform

to the requirements given in Table 1. The mass per metre of length of the hose shall be in accordance

with Table 1.

Table 1 — Inside diameter, tolerances on inside diameter and maximum mass per unit length

Inside diameter Tolerances for inside Maximum mass per unit length
mm diameter kg/m
Type A Type B
45 -0,2 to +1,0 2,0 1,0
50 -0,2 to +1,0 2,3 1,6
52 -0,2 to +1,0 2,3 1,6
65 -0,2 to +1,5 3,2 2,0
2 © ISO 2020 – All rights reserved
---------------------- Page: 10 ----------------------
oSIST prEN ISO 14557:2020
ISO/DIS 14557:2020(E)
Table 1 (continued)
Inside diameter Tolerances for inside Maximum mass per unit length
mm diameter kg/m
Type A Type B
70 -0,2 to +1,5 3,7 2,6
75 -0,2 to +1,5 4,1 3,0
76 -0,2 to +1,5 4,1 3,0
90 -0,2 to +1,5 6,0 4,0
100 -0,2 to +1,5 6,7 4,5
102 -0,2 to +1,5 6,7 4,5
110 -0,2 to +1,5 7,0 4,7
125 -0,5 to +2,0 7,8 5,0
140 -0,5 to +2,0 8,9 6,0
150 -0,5 to +2,0 1
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.