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
Current Stage
9093 - International Standard confirmed
Start Date
09-Sep-2022
Completion Date
14-Feb-2026

Relations

Effective Date
06-Jun-2022
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.

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ISO 15541:2016 - Ships and marine technology -- Fire resistance of non-metallic hose assemblies and non-metallic compensators -- Requirements for the test bench

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Frequently Asked Questions

ISO 15541:2016 is a standard published by the International Organization for Standardization (ISO). Its full title is "Ships and marine technology — Fire resistance of non-metallic hose assemblies and non-metallic compensators — Requirements for the test bench". This standard covers: 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.

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.

ISO 15541:2016 is classified under the following ICS (International Classification for Standards) categories: 47.020.30 - Piping systems; 83.140.40 - Hoses. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO 15541:2016 has the following relationships with other standards: It is inter standard links to ISO 19980:2021, ISO 15541:1999. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

ISO 15541:2016 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


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. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
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
...

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