SIST EN ISO 6801:2022

Rubber and plastics hoses - Determination of volumetric expansion (ISO 6801:2021)

This document specifies a method for the determination of the volumetric expansion of rubber or plastics hoses under hydrostatic pressure.
This document does not specify the dimensions of the test piece and the test pressure(s) as each of which is specified in the appropriate specification.

Gummi- oder Kunststoffschläuche - Bestimmung der Volumenzunahme (ISO 6801:2021)

Dieses Dokument legt ein Verfahren für die Ermittlung der Volumenzunahme von Gummi- oder Kunststoff-schläuchen unter hydrostatischem Druck fest.
Dieses Dokument spezifiziert nicht die Abmessungen der Probe und den Prüfdruck (die Prüfdrücke), weil beides in den entsprechenden Spezifikationen aufgeführt ist.
WARNUNG — Anwender dieses Dokuments sollten mit der üblichen Laborpraxis vertraut sein. In diesem Dokument werden nicht alle Sicherheitsprobleme behandelt, die bei dessen Anwendung auftreten können. Es liegt in der Verantwortlichkeit des Anwenders, geeignete Gesundheits- und Sicherheitsmaßnahmen festzulegen.

Tuyaux en caoutchouc ou en plastique - Détermination de l'expansion volumique (ISO 6801:2021)

Le présent document spécifie une méthode de détermination de l’expansion volumique des tuyaux en caoutchouc ou en plastique sous pression hydrostatique.
Ce document ne précise pas les dimensions de l'éprouvette et la (les) pression(s) d'épreuve, puisque chacune d'elles est spécifiée dans la spécification appropriée.

Gumene in polimerne cevi - Ugotavljanje volumenskega raztezanja (ISO 6801:2021)

Ta dokument določa metodo za določevanje volumetričnega raztezanja gumenih ali
plastičnih cevi pod hidrostatičnim tlakom.
Ta dokument ne določa dimenzij preskušancev in preskusnih tlakov, ker so ti
opisani v ustrezni specifikaciji   .

General Information

• Status: Published
• Public Enquiry End Date: 30-Apr-2021
• Publication Date: 22-Dec-2021
• 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: 15-Dec-2021
• Due Date: 19-Feb-2022
• Completion Date: 23-Dec-2021
• Ref Project: EN ISO 6801:2021 - Rubber and plastics hoses - Determination of volumetric expansion (ISO 6801:2021)

Relations

• Replaces: SIST EN 26801:2000 - Rubber or plastics hoses - Determination of volumetric expansion (ISO 6801:1983)
• Effective Date: 15-Dec-2021
• Replaces: SIST EN 26801:2000/A1:2014 - Rubber or plastics hoses - Determination of volumetric expansion - Amendment 1: Deletion of alcohol as pressurizing fluid (ISO 6801:1983/Amd 1:2011)
• Effective Date: 15-Dec-2021
• Revised: SIST EN 26801:2000/A1:2014 - Rubber or plastics hoses - Determination of volumetric expansion - Amendment 1: Deletion of alcohol as pressurizing fluid (ISO 6801:1983/Amd 1:2011)
• Effective Date: 23-Dec-2020
• Revised: SIST EN 26801:2000 - Rubber or plastics hoses - Determination of volumetric expansion (ISO 6801:1983)
• Effective Date: 16-Dec-2020

Overview

EN ISO 6801:2021 - Rubber and plastics hoses - Determination of volumetric expansion - specifies a laboratory method to measure the volumetric expansion of rubber or plastic hoses when subjected to hydrostatic pressure. Adopted by CEN as EN ISO 6801:2021, the standard defines apparatus, calibration, test procedure, result expression and reporting requirements. It does not prescribe test-piece dimensions or test pressures (these are given in the applicable product specification).

Key topics and technical requirements

• Scope: Method for determining volumetric expansion under hydrostatic pressure; dimensions and pressures are specified elsewhere.
• Apparatus: Pressure source, pressure gauges, piping and valves with smooth bores, a vertical hose mounting, and a graduated burette for measuring displaced fluid.
• Pressure rise rates (clause 4.2):
  • 0.075–0.175 MPa/s for test pressures ≤ 12.5 MPa.
  • 0.35–1.0 MPa/s for higher test pressures.
• Calibration: Determine apparatus correction factor using a steel hydraulic test tube (specified dimensions in the standard). If the correction factor at 10.3 MPa exceeds 0.08 cm³, the apparatus is unsuitable.
• Procedure highlights:
  • Use distilled water and remove air from the system (moving the hose can help).
  • Perform three consecutive pressure cycles; collect the total volume of the three expansions in the burette.
  • Repeat or discard tests if air ingress or overpressure occurs (rules provided).
• Result expression: Volumetric expansion E = (V − C) / l, reported in cm³/m (V = total 3-cycle volume, C = correction factor, l = free length).
• Test report: Must include reference to ISO 6801:2021, hose description, test-piece dimensions, test pressure, correction factor, total volume, expansion (cm³/m), percentage expansion (if required), deviations and test date.

Applications and users

• Who uses it: Hose manufacturers, independent test laboratories, R&D teams, quality control, procurement/specification engineers, and conformity/approval bodies.
• Practical uses:
  • Verify that hoses meet volumetric stability requirements for dispensing precise fluid volumes.
  • Quality control during production and final acceptance testing.
  • Supporting product specifications, supplier qualification and performance comparisons.
  • Research and development for new hose materials and designs.
• Industries: Automotive, chemical processing, fuel dispensing, medical devices (where applicable specifications cite ISO 6801), and industrial hydraulics.

Related standards

• ISO 1402 - Rubber and plastics hoses and hose assemblies - Hydrostatic testing (referenced for pressure procedures).
• ISO 8330 - Rubber and plastics hoses and hose assemblies - Vocabulary (terms and definitions used).

Keywords: EN ISO 6801:2021, volumetric expansion, rubber and plastics hoses, hydrostatic pressure, hose testing, burette, correction factor, ISO 1402.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2022
Nadomešča:
SIST EN 26801:2000
SIST EN 26801:2000/A1:2014
Gumene in polimerne cevi - Ugotavljanje volumenskega raztezanja (ISO 6801:2021)
Rubber and plastics hoses - Determination of volumetric expansion (ISO 6801:2021)
Gummi- oder Kunststoffschläuche - Bestimmung der Volumenzunahme (ISO 6801:2021)
Tuyaux en caoutchouc ou en plastique - Détermination de l'expansion volumique (ISO
6801:2021)
Ta slovenski standard je istoveten z: EN ISO 6801:2021
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 6801
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2021
EUROPÄISCHE NORM
ICS 23.040.70 Supersedes EN 26801:1993, EN 26801:1993/A1:2011
English Version
Rubber and plastics hoses - Determination of volumetric
expansion (ISO 6801:2021)
Tuyaux en caoutchouc ou en plastique - Détermination Gummi- oder Kunststoffschläuche - Bestimmung der
de l'expansion volumique (ISO 6801:2021) Volumenzunahme (ISO 6801:2021)
This European Standard was approved by CEN on 2 December 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 6801:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 6801:2021) 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 2022, and conflicting national standards shall be
withdrawn at the latest by June 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 26801:1993.
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 6801:2021 has been approved by CEN as EN ISO 6801:2021 without any modification.

INTERNATIONAL ISO
STANDARD 6801
Second edition
2021-11
Rubber and plastics hoses —
Determination of volumetric
expansion
Tuyaux en caoutchouc ou en plastique — Détermination de
l'expansion volumique
Reference number
ISO 6801:2021(E)
ISO 6801:2021(E)
© 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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 6801:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Apparatus . 1
5 Calibration of apparatus .2
6 Procedure .3
7 Expression of results . 3
8 Test report . 4
iii
ISO 6801:2021(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
...