SIST EN ISO 4671:2022

Rubber and plastics hoses and hose assemblies - Methods of measurement of the dimensions of hoses and the lengths of hose assemblies (ISO 4671:2022)

This document 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.

Gummi- und Kunststoffschläuche und -schlauchleitungen - Verfahren zur Messung der Maße von Schläuchen und Längen von Schlauchleitungen (ISO 4671:2022)

Dieses Dokument legt Verfahren fest zur Messung der Innendurchmesser, Außendurchmesser (einschließlich des Durchmessers über der Verstärkung von Hydraulikschläuchen), Wanddicke, Konzentrizität und Dicke der Innenschicht und Außenschicht von Schläuchen, Verfahren zur Messung und Festlegung der Länge von Schläuchen und Schlauchleitungen sowie ein Verfahren zur Nachprüfung der Durchgangsöffnung von Hydraulikleitungen.

Tuyaux et flexibles en caoutchouc et en plastique - Méthodes de mesurage des dimensions des tuyaux et de la longueur des flexibles (ISO 4671:2022)

Le présent document spécifie des méthodes de mesurage du diamètre intérieur, du diamètre extérieur (y compris le diamètre sur armature des flexibles hydrauliques), de l’épaisseur de paroi, de la concentricité, des épaisseurs du tube et du revêtement, des méthodes de mesurage et d’identification de la longueur des tuyaux et flexibles, ainsi qu’une méthode de vérification de l’alésage des flexibles hydrauliques.

Gumene in polimerne cevi ter cevni priključki - Metode merjenja mer cevi ter dolžin cevnih priključkov (ISO 4671:2022)

Ta dokument določa metode merjenja notranjega premera, zunanjega premera (vključno s premerom nad ojačitvijo hidravličnih cevi), debeline sten, koncentričnosti, obloge in debeline zunanje obloge cevi, metode merjenja in prepoznavanja dolžin cevi in cevnih priključkov ter metode preverjanja izvrtine priključkov.

General Information

• Status: Published
• Public Enquiry End Date: 30-Apr-2021
• Publication Date: 13-Apr-2022
• ICS: 23.040.70 - Hoses and hose assemblies
• ICS: 83.140.40 - Hoses
• Technical Committee: IPMA - Polimer materials and products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 06-Apr-2022
• Due Date: 11-Jun-2022
• Completion Date: 14-Apr-2022
• Ref Project: EN ISO 4671:2022 - Rubber and plastics hoses and hose assemblies - Methods of measurement of the dimensions of hoses and the lengths of hose assemblies (ISO 4671:2022)

Relations

• Replaces: SIST EN ISO 4671:2009 - Rubber and plastics hoses and hose assemblies - Methods of measurement of the dimensions of hoses and the lengths of hose assemblies (ISO 4671:2007)
• Effective Date: 06-Apr-2022
• Replaces: SIST EN ISO 4671:2009/A1:2014 - Rubber and plastics hoses and hose assemblies - Methods of measurement of the dimensions of hoses and the lengths of hose assemblies - Amendment 1: Clarification of position at which outside diameter is measured (ISO 4671:2007/Amd 1:2011)
• Effective Date: 06-Apr-2022

Overview

EN ISO 4671:2022 (ISO 4671:2022) specifies standardized methods of measurement for rubber and plastics hoses and hose assemblies. Published by CEN/ISO, this fourth-edition standard defines how to measure internal and external dimensions, wall and lining/cover thicknesses, concentricity, assembly lengths, and how to verify the through‑bore of hydraulic hose assemblies. The document also covers test piece conditioning and the temperature at which measurements shall be taken. EN ISO 4671:2022 replaces the 2007 edition and incorporates amendment A1:2011.

Key topics and requirements

• Measurement scope: inside diameter, outside diameter (including diameter over reinforcement for hydraulic hoses), wall thickness, concentricity, lining and cover thickness.
• Multiple measurement methods: the standard provides several numbered methods (e.g., Method 1…Method 7 for inside diameter; several methods for outside diameter and wall thickness) so laboratories and manufacturers can select the appropriate technique for hose type and construction.
• Length and identification: specifies methods to measure and mark the lengths of hoses and hose assemblies and defines measurement points for both loose hoses and fitted assemblies.
• Through-bore verification: includes a procedure to verify the continuity/through‑bore of hydraulic hose assemblies (important for flow and safety checks).
• Test conditioning and temperature: requires conditioning of test pieces and prescribes measurement temperatures to ensure reproducible, accurate dimensional results.
• Mandatory language: permissions in prior editions have been elevated to requirements (uses “shall”), reflecting stricter conformity expectations.
• Traceability and reporting: defines essential elements for the test report so measurements are repeatable and auditable.

Practical applications

• Quality control and production inspection for hose manufacturers (dimension checks during manufacturing and final inspection).
• Incoming and outgoing acceptance testing for suppliers and purchasers to confirm conformance with specified diameters, wall thickness, concentricity and lengths.
• Laboratory test procedures for certification bodies and independent test labs.
• Design validation and R&D when developing new hose constructions (ensuring internal/external dimensions meet design intent).
• Maintenance and safety checks on hydraulic hose assemblies where through-bore verification and diameter over reinforcement are critical for system performance.

Who uses this standard

• Hose and hose‑assembly manufacturers and OEMs
• Quality assurance and metrology engineers
• Test laboratories and certification bodies
• Procurement and inspection teams in industrial, hydraulic and fluid‑transfer sectors
• Standards committees and regulatory assessors

Related standards and context

EN ISO 4671:2022 was prepared by ISO/TC 45 (Rubber and rubber products) in collaboration with CEN/TC 218 (Rubber and plastics hoses and hose assemblies). It supersedes EN ISO 4671:2007 and its amendment EN ISO 4671:2007/A1:2011.

Keywords: EN ISO 4671:2022, ISO 4671:2022, rubber and plastics hoses, hose assemblies, measurement methods, inside diameter, outside diameter, wall thickness, concentricity, lining thickness, cover thickness, hose length, through-bore verification.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2022
Nadomešča:
SIST EN ISO 4671:2009
SIST EN ISO 4671:2009/A1:2014
Gumene in polimerne cevi ter cevni priključki - Metode merjenja mer cevi ter dolžin
cevnih priključkov (ISO 4671:2022)
Rubber and plastics hoses and hose assemblies - Methods of measurement of the
dimensions of hoses and the lengths of hose assemblies (ISO 4671:2022)
Gummi- und Kunststoffschläuche und -schlauchleitungen - Verfahren zur Messung der
Maße von Schläuchen und Längen von Schlauchleitungen (ISO 4671:2022)
Tuyaux et flexibles en caoutchouc et en plastique - Méthodes de mesurage des
dimensions des tuyaux et de la longueur des flexibles (ISO 4671:2022)
Ta slovenski standard je istoveten z: EN ISO 4671:2022
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
83.140.40 Gumene cevi Hoses
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 4671
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 23.040.70; 83.140.40 Supersedes EN ISO 4671:2007, EN ISO
4671:2007/A1:2011
English Version
Rubber and plastics hoses and hose assemblies - Methods
of measurement of the dimensions of hoses and the
lengths of hose assemblies (ISO 4671:2022)
Tuyaux et flexibles en caoutchouc et en plastique - Gummi- und Kunststoffschläuche und -
Méthodes de mesurage des dimensions des tuyaux et schlauchleitungen - Verfahren zur Messung der Maße
de la longueur des flexibles (ISO 4671:2022) von Schläuchen und Längen von Schlauchleitungen
(ISO 4671:2022)
This European Standard was approved by CEN on 13 March 2022.

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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4671:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 4671:2022) 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 September 2022, and conflicting national standards
shall be withdrawn at the latest by September 2022.
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 4671:2007.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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 4671:2022 has been approved by CEN as EN ISO 4671:2022 without any modification.

INTERNATIONAL ISO
STANDARD 4671
Fourth edition
2022-03
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 4671:2022(E)
ISO 4671:2022(E)
© ISO 2022
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 4671:2022(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test piece conditioning and temperature of measurement . 1
4.1 Conditioning of test pieces . 1
4.2 Measurement temperature . 1
5 Measurement of inside diameter . 2
5.1 General . 2
5.2 Method 1 . 2
5.3 Method 2 . 2
5.4 Method 3 . 2
5.5 Method 4 . 3
5.6 Method 5 . 3
5.7 Method 6 . 3
5.8 Method 7 . 3
6 Measurement of outside diameter . 3
6.1 General . 3
6.2 Method 1 . 3
6.3 Method 2 . 3
6.4 Method 3 . 3
6.5 Method 4 . 4
6.6 Method 5 . 4
7 Measurement of diameter over reinforcement . 4
8 Measurement of wall thickness .4
8.1 General . 4
8.2 Method 1 . 4
8.3 Method 2 . 4
8.4 Method 3 . 5
8.5 Method 4 . 5
9 Measurement of concentricity .5
9.1 General . 5
9.2 Method 1 . 5
9.3 Method 2 . 6
9.4 Method 3 . 6
9.5 Method 4 . 6
9.6 Method 5 . 6
10 Measurement of lining and cover thickness . 6
10.1 General . 6
10.2 Method 1 . 6
10.3 Method 2 . 7
10.4 Method 3 . 8
11 Measurement of length and identification of measurement points .8
11.1 Measurement of length . 8
11.2 Measurement points . 8
11.2.1 Hoses . 8
11.2.2 Hose assemblies . 8
12 Verification of through-bore of hose assemblies .10
13 Test report .10
iii
ISO 4671:2022(E)
Bibliography .11
iv
ISO 4671:2022(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 218, Rubber and plastics hoses and
hose assemblies, in accordance with the Agreement on technical cooperation between ISO and CEN
(Vienna Agreement).
This fourth edition cancels and replaces the third edition (ISO 4671:2007), which has been technically
revised. It also incorporates the Amendment ISO 4671:2007/Amd 1:2011. The main changes are as
follows:
— permissions (using the term “may”) have been changed to requirements (using the term “shall”)
throughout the document along with resultant modified text;
— the position at which the outside diameter is measured has been clarified;
— Clause 3 has been added.
Any fe
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