SIST EN ISO 4671:2009

SLOVENSKI STANDARD
SIST EN ISO 4671:2009
01-februar-2009
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SIST EN ISO 4671:2001
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Rubber and plastics hoses and hose assemblies - Methods of measurement of the
dimensions of hoses and the lengths of hose assemblies (ISO 4671:2007)
Gummi- und Kunststoffschläuche und Schlauchleitungen - Verfahren zur Messung der
Maße von Schläuchen und Längen von Schlauchleitungen (ISO 4671:2007)
Tuyaux et flexibles en caoutchouc et en plastique - Méthodes de mesurage des
dimensions des tuyaux et de la longueur des flexibles (ISO 4671:2007)
Ta slovenski standard je istoveten z: EN ISO 4671:2007
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
SIST EN ISO 4671:2009 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 4671:2009

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SIST EN ISO 4671:2009
EUROPEAN STANDARD
EN ISO 4671
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2007
ICS 23.040.70; 83.140.40 Supersedes EN ISO 4671:2000
English Version
Rubber and plastics hoses and hose assemblies - Methods of
measurement of the dimensions of hoses and the lengths of
hose assemblies (ISO 4671:2007)
Tuyaux et flexibles en caoutchouc et en plastique - Gummi- und Kunststoffschläuche und Schlauchleitungen -
Méthodes de mesurage des dimensions des tuyaux et de la Verfahren zur Messung der Maße von Schläuchen und
longueur des flexibles (ISO 4671:2007) Längen von Schlauchleitungen (ISO 4671:2007)
This European Standard was approved by CEN on 28 November 2007.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4671:2007: E
worldwide for CEN national Members.

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SIST EN ISO 4671:2009
EN ISO 4671:2007 (E)
Contents Page
Foreword.3

2

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SIST EN ISO 4671:2009
EN ISO 4671:2007 (E)
Foreword
This document (EN ISO 4671:2007) has been prepared by Technical Committee ISO/TC 45 "Rubber and
rubber products" in collaboration with Technical Committee CEN/TC 218 “Rubber and plastics hoses and
hose assemblies” 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 June 2008, and conflicting national standards shall be withdrawn at
the latest by June 2008.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 4671:2000.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 4671:2007 has been approved by CEN as a EN ISO 4671:2007 without any modification.


3

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SIST EN ISO 4671:2009

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SIST EN ISO 4671:2009

INTERNATIONAL ISO
STANDARD 4671
Third edition
2007-12-15

Rubber and plastics hoses and hose
assemblies — Methods of measurement
of the dimensions of hoses and the
lengths of hose assemblies
Tuyaux et flexibles en caoutchouc et en plastique — Méthodes de
mesurage des dimensions des tuyaux et de la longueur des flexibles




Reference number
ISO 4671:2007(E)
©
ISO 2007

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SIST EN ISO 4671:2009
ISO 4671:2007(E)
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ii © ISO 2007 – All rights reserved

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SIST EN ISO 4671:2009
ISO 4671:2007(E)
Contents Page
Foreword. iv
1 Scope .1
2 Normative references .1
3 Test piece conditioning and temperature of measurement .1
4 Measurement of inside diameter.1
5 Measurement of outside diameter .3
6 Measurement of diameter over reinforcement .4
7 Measurement of wall thickness.4
8 Measurement of concentricity.5
9 Measurement of lining and cover thickness.6
10 Measurement of length and identification of measurement points.7
11 Verification of through-bore of hose assemblies.9
12 Test report .10
Bibliography .11

© ISO 2007 – All rights reserved iii

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SIST EN ISO 4671:2009
ISO 4671:2007(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.
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 4671 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee
SC 1, Hoses (rubber and plastics).
This third edition cancels and replaces the second edition (ISO 4671:1999), which has been technically
revised. The main changes are the following:
⎯ a clause has been added (Clause 3) specifying details of test piece conditioning and temperature of
measurement;
⎯ in 4.2, the use of tapered gauges has been added;
⎯ in Clause 4, an additional method of measuring the inside diameter has been included (4.8);
⎯ in Clause 5, an additional method of measuring the outside diameter has been included (5.6);
⎯ in 7.1, the parts of hoses at which readings are to be taken have been specified;
⎯ in 8.1, the parts of the hoses at which readings are to be taken have been specified;
⎯ in Clause 8, three additional methods of measuring the concentricity have been included (8.4, 8.5
and 8.6);
⎯ in 9.2, the method of measuring the lining and cover thickness has been modified.

iv © ISO 2007 – All rights reserved

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SIST EN ISO 4671:2009
INTERNATIONAL STANDARD ISO 4671:2007(E)

Rubber and plastics hoses and hose assemblies — Methods of
measurement of the dimensions of hoses and the lengths of
hose assemblies
1 Scope
This International Standard specifies methods of measuring the inside diameter, outside diameter (including
diameter over reinforcement of hydraulic hoses), wall thickness, concentricity and lining and cover thickness
of hoses, methods of measurement and identification of the lengths of hoses and hose assemblies, and a
method of verifying the through-bore of hydraulic hose assemblies.
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 463, Geometrical Product Specifications (GPS) — Dimensional measuring equipment — Design and
metrological characteristics of mechanical dial gauges
ISO 3599, Vernier callipers reading to 0,1 and 0,05 mm
ISO 3611, Micrometer callipers for external measurement
3 Test piece conditioning and temperature of measurement
3.1 Conditioning of test pieces
Unless otherwise specified, test pieces shall be taken at least 16 h after manufacture of the hose and
+°7
conditioned at 23 C for at least 3 h before measurement. This 3 h may be included in the 16 h.
−3
3.2 Measurement temperature
+7
Unless otherwise specified, the measurement temperature shall be 23 °C.
−3
4 Measurement of inside diameter
4.1 General
Measurements by methods 1 to 7 may be made either on the ends of a full length of hose or on a test piece
(minimum length 150 mm) cut from a full length. For wire-reinforced hydraulic hoses, measurements shall be
made at a minimum distance of 25 mm from the end of the hose.
Measurements shall be made using one of the following methods, as appropriate.
© ISO 2007 – All rights reserved 1

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SIST EN ISO 4671:2009
ISO 4671:2007(E)
4.2 Method 1
For inside diameters less than 150 mm and for all sizes of collapsible hose, plug gauges with 0,25 mm
increments in diameter (see Figure 1) and tapered gauges with 0,1 mm increments in diameter (see Figure 2)
may be used. Insert the gauge into the hose test piece gently without pressure. Take special care if the hose
bore is not precisely circular.
Dimensions in millimetres

Figure 1 — Plug gauges

Dimensions in millimetres

Figure 2 — Tapered gauges
4.3 Method 2
For inside diameters less than 63 mm, where greater accuracy is required, for example for wire-reinforced
hydraulic hoses, an expanding ball or telescopic gauge may be used.
4.4 Method 3
For all inside diameters up to and including 100 mm, the internal jaws of vernier slide callipers complying with
the requirements of ISO 3599 may be used. Make two measurements at right angles to each other and take
their average as the inside diameter. Take care not to distort the hose when making the measurements.
Callipers of suitable size may be used for nominal bores above 100 when greater accuracy than is obtainable
by Method 5 (see 4.6) is required.
4.5 Method 4
For all inside diameters, an internal calliper dial gauge (see ISO 463) with rounded feet designed for use
...