ISO 15541:2016

Ships and marine technology - Fire resistance of non-metallic hose assemblies and non-metallic compensators - Requirements for the test bench

ISO 15541:2016 specifies requirements for a test bench to determine the fire resistance of non-metallic hose assemblies and non-metallic compensators with nominal diameter up to 150 mm. It may be used for bigger sizes provided proper test bench conditions are obtained. During the exposure to flames, there are possible working pressures of up to 16 bar. The flame spread ability of non-metallic hose assemblies or non-metallic compensators cannot be tested with the test bench specified in this document. Only water is permitted as a test medium. With a view to ensuring maximum safety for both the operating personnel and the test bench in the event of damage of the non-metallic hose assembly or non-metallic compensator during the test, the use of combustible test media is excluded.

Navires et technologie maritime — Résistance au feu des flexibles et des compensateurs non métalliques — Exigences pour le banc d'essai

General Information

• Status: Published
• Publication Date: 18-Jul-2016
• ICS: 47.020.30 - Piping systems
• ICS: 83.140.40 - Hoses
• Technical Committee: ISO/TC 8/SC 3 - Piping and machinery
• Drafting Committee: ISO/TC 8/SC 3 - Piping and machinery
• Current Stage: 9093 - International Standard confirmed
• Start Date: 09-Sep-2022
• Completion Date: 13-Dec-2025

Relations

• Consolidated By: ISO 19980:2021 - Ophthalmic instruments - Corneal topographers
• Effective Date: 06-Jun-2022
• Revises: ISO 15541:1999 - Ships and marine technology - Fire resistance of hose assemblies - Requirements for the test bench
• Effective Date: 23-Aug-2014

Overview

ISO 15541:2016 - Ships and marine technology - specifies requirements for a test bench used to determine the fire resistance of non-metallic hose assemblies and non-metallic compensators (nominal diameter up to 150 mm). The standard defines the test-bench components, burner chamber, coolant circuit, monitoring/recording, safety facilities and pressure-producing equipment. Only water is permitted as the test medium and tests simulate flame exposure with possible working pressures up to 16 bar. The test bench is intended to produce reproducible fire-resistance results; it does not assess flame spread ability.

Key topics and technical requirements

• Scope and limits

  • Applies to nominal diameters up to 150 mm; may be used for larger sizes if test-bench conditions are appropriate.
  • Maximum working pressure during flame exposure: up to 16 bar.
  • Test medium: only water (combustible media excluded).

• Burner chamber

  • Burner sectional area minimum 150 mm × 500 mm (can be multiple units).
  • Burner must create a flame of (800 ± 50) °C measured 15–20 mm below the test specimen.
  • Minimum burner nozzle density: 20 nozzles per dm²; burners can be fan or atmospheric type.
  • Upward directed airflow with exhaust trunk and variable exhaust fan to produce a directed flame.

• Coolant and aggregate box

  • Water inlet temperature: (80 ± 2) °C.
  • Minimum water velocity in specimen: 0.1 m/s.
  • Provision for constant pressure (≥ (5 ± 0.2) bar up to M.A.W.P.).

• Monitoring, recording and instrumentation

  • Key parameters (temperatures, flow rate, working pressure, test duration) must be measured and recorded at least once every 2 minutes.
  • Instrument tolerances: pressure gauges ±1.0% of max scale; electrical instruments Class 1 (IEC 60051-1); flow meter ±1.0% of max scale.

• Safety facilities and tests

  • Automatic gas shut-off on flame failure, pressure/flow drop, box opening, insufficient exhaust or emergency stop.
  • Quick-closing valves, pressure release, burner flooding and drainage provisions.
  • Safety valve limiting working pressure to 1.1× set value; heating interlock with circulation pump.

Applications and users

• Intended for test laboratories, marine equipment manufacturers, shipyards, classification societies and regulatory bodies that need to verify serviceability of non-metallic hoses and compensators under fire exposure.
• Used to certify components for shipboard piping systems, onboard fire-safety assessments and type-approval testing in marine technology.

Related standards

• Normative reference: ISO 15540:2016 (Fire resistance - Test methods for non-metallic hose assemblies and compensators).
• Instrumentation reference: IEC 60051-1:1997 (electrical measuring instruments).

Keywords: ISO 15541:2016, fire resistance, non-metallic hose assemblies, non-metallic compensators, test bench, ships and marine technology, burner chamber, coolant circuit, safety facilities.

Standards Content (Sample)

DRAFT INTERNATIONAL STANDARD
ISO/DIS 15541
ISO/TC 8/SC 3 Secretariat: ANSI
Voting terminates on:
Voting begins on:
2015-12-03 2016-03-03
Ships and marine technology — Fire resistance of
non-metallic hose assemblies and non-metallic
compensators — Requirements for the test bench
Titre manque
ICS: 47.020.30; 83.140.40
THIS DOCUMENT IS A DRAFT CIRCULATED
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
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 15541:2015(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 2015

ISO/DIS 15541:2015(E)
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2015 – All rights reserved

ISO/DIS 15541
Contents Page
Foreword . iv
Introduction . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 Components of test bench . 2
4.2 Burner chamber . 3
4.3 Aggregate box . 3
4.4 Monitoring and recording . 4
4.5 Pressure-producing equipment . 5
Annex A (normative) Flame appearance . 6
Bibliography . 8
Figures
Figure 1 — Diagram of test bench . 2
Figure A.1 — Arrangement of a burner chamber . 6
Figure A.2 — Arrangement of a burner chamber . 7
Tables
Table 1 — Parameter control and adjustment ranges . 4
Table 2 — Parameter-recording requirements . 4
ISO/DIS 15541
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.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.

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.

ISO 15541 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee
SC 3, Piping and machinery.
iv © ISO 2015 – All rights reserved

ISO/DIS 15541
Introduction
The main objective of the test using the test bench described in this International Standard is to determine
whether and for a safety period a non-metallic hose assembly or non-metallic compensator can be exposed to
fire, without becoming inoperable, when subjected to the envisaged working pressure. Despite the fact that
the attacking fire is simulated so as to correspond to a fire occurring in practice, it cannot be assumed that the
duration of resistance to fire as recorded during that test will also occur in the event of an actual fire, as the
conditions of installation, which essentially affect to the duration of resistance to fire, may vary from case to
case.
Test carried out using the test bench specified in this International Standard are intended to lead to results
capable of being reproduced.
DRAFT INTERNATIONAL STANDARD ISO/DIS 15541

Ships and marine technology — Fire resistance of non-metallic
hose assemblies and non-metallic compensators —
Requirements for the test bench

1 Scope
This International Standard specifies requirements for a test bench to determine the fire resistance of non-
metallic hose assemblies and non-metallic compensators with nominal diameter up to 150 mm. It may be
used for bigger sizes provided proper test bench conditions are obtained. During the exposure to flames, there
are possible working pressures of up to 16 bar.

The flame spread ability of non-metallic hose assemblies or non-metallic compensators cannot be tested with
the test bench specified in this International Standard.

Only water is permitted as a test medium. With a view to ensuring maximum safety for both the operating
personnel and the test bench in the event of damage of the non-metallic hose assembly or non-metallic
compensator during the test, the use of combustible test media is excluded.

2 Normative references
The following referenced documents are indispensable for the application 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 15540:2015, Ships and marine technology — Fire resistance of non-metallic hose assemblies and non-
metallic compensators — Test methods

IEC 60051-1:1997, Direct acting indicating analogue electrical measuring instruments and their accessories —
Part 1: Definitions and general requirements common to all parts

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

3.1
fire resistance
ability of an element of building construction, component or structure, to fulfill for a stated period of time the
required stability, integrity, thermal insulation and/or other expected duty specified, in a standard fire
resistance test
ISO/DIS 15541
4 Requirements
4.1 Components of test bench
The test bench shall consist of the following par
...

INTERNATIONAL ISO
STANDARD 15541
Second edition
2016-07-15
Ships and marine technology —
Fire resistance of non-metallic
hose assemblies and non-metallic
compensators — Requirements for the
test bench
Navires et technologie maritime — Résistance au feu des flexibles et
des compensateurs non métalliques — Exigences pour le banc d’essai
Reference number
©
ISO 2016
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 Components of test bench . 2
4.2 Burner chamber . 3
4.2.1 General. 3
4.2.2 Burner . 4
4.2.3 Exhaust trunk . 4
4.2.4 Coolant circuit . 4
4.3 Aggregate box . 4
4.4 Monitoring and recording . 4
4.4.1 Control and adjustments . 4
4.4.2 Measurements, recording and indication . 5
4.4.3 Safety facilities . 6
4.5 Pressure-producing equipment . 6
Annex A (informative) Flame appearance . 7
Bibliography . 9
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 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.
The committee responsible for this document is ISO/TC 8, Ships and marine technology, Subcommittee
SC 3, Piping and machinery.
This second edition cancels and replaces the first edition (ISO 15541:1999), which has been technically
revised.
The most significant change in this second edition is the inclusion of non-metallic compensators to the
fire test procedures outlined in this document. The first edition of this document applied primarily to
non-metallic hose assemblies. Because the compensators are used in common piping systems and may
have similar materials to hose assemblies, the applicability of the test procedures was expanded to
include compensators.
iv © ISO 2016 – All rights reserved

Introduction
The main objective of the test using the test bench described in this document is to determine whether
and for a safety period a non-metallic hose assembly or non-metallic compensator can be exposed to
fire, without becoming inoperable, when subjected to the envisaged working pressure. Despite the
fact that the attacking fire is simulated so as to correspond to a fire occurring in practice, it cannot be
assumed that the duration of resistance to fire as recorded during that test will also occur in the event
of an actual fire, as the conditions of installation, which essentially affect to the duration of resistance
to fire, may vary from case to case.
Tests carried out using the test bench specified in this document are intended to lead to results capable
of being reproduced.
INTERNATIONAL STANDARD ISO 15541:2016(E)
Ships and marine technology — Fire resistance of non-
metallic hose assemblies and non-metallic compensators
— Requirements for the test bench
1 Scope
This document specifies requirements for a test bench to determine the fire resistance of non-metallic
hose assemblies and non-metallic compensators with nominal diameter up to 150 mm. It may be used
for bigger sizes provided proper test bench conditions are obtained. During the exposure to flames,
there are possible working pressures of up to 16 bar.
The flame spread ability of non-metallic hose assemblies or non-metallic compensators cannot be
tested with the test bench specified in this document.
Only water is permitted as a test medium. With a view to ensuring maximum safety for both the
operating personnel and the test bench in the event of damage of the non-metallic hose assembly or
non-metallic compensator during the test, the use of combustible test media is excluded.
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 15540:2016, Ships and marine technology — Fire resistance of non-metallic hose assemblies and non-
metallic compensators — Test methods
IEC 60
...