EN ISO 11173:2017

SLOVENSKI STANDARD
01-januar-2018
1DGRPHãþD
SIST EN 1411:1997
3ODVWRPHUQHFHYL'RORþDQMHRGSRUQRVWLSURWL]XQDQMLPXGDUFHP0HWRGD
VWRSQMHYDQMD,62
Thermoplastics pipes - Determination of resistance to external blows - Staircase method
(ISO 11173:1994)
Rohre aus Thermoplasten - Bestimmung der Widerstandsfähigkeit gegen äußere
Schlagbeanspruchung - Stufenverfahren (ISO 11173:1994)
Tubes en matières thermoplastiques - Détermination de la résistance aux chocs
extérieurs - Méthode en escalier (ISO 11173:1994)
Ta slovenski standard je istoveten z: EN ISO 11173:2017
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 11173
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2017
EUROPÄISCHE NORM
ICS 23.040.20 Supersedes EN 1411:1996
English Version
Thermoplastics pipes - Determination of resistance to
external blows - Staircase method (ISO 11173:1994)
Tubes en matières thermoplastiques - Détermination Rohre aus Thermoplasten - Bestimmung der
de la résistance aux chocs extérieurs - Méthode en Widerstandsfähigkeit gegen äußere
escalier (ISO 11173:1994) Schlagbeanspruchung - Stufenverfahren (ISO
11173:1994)
This European Standard was approved by CEN on 19 September 2017.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11173:2017 E
worldwide for CEN national Members.

Contents Page
European Foreword . 3

European Foreword
The text of ISO 11173:1994 has been prepared by Technical Committee ISO/TC 138 “Plastics pipes,
fittings and valves for the transport of fluids” of the International Organization for Standardization
(ISO) and has been taken over as EN ISO 11173:2017 by Technical Committee CEN/TC 155 “Plastics
piping systems and ducting systems” the secretariat of which is held by NEN.
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 April 2018 and conflicting national standards shall be
withdrawn at the latest by October 2020.
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 1411:1996.
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, Former Yugoslav Republic of Macedonia, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
the United Kingdom.
Endorsement notice
The text of ISO 11173:1994 has been approved by CEN as a EN ISO 11173:2017 without any
modification.
INTERNATIONAL
ISO
STANDARD
First edition
1994-12-01
Thermoplastics pipes - Determination of
resistance to external blows - Staircase
method
Tubes en matieres thermoplastiques -
D&ermination de Ia r&is tance aux
chocs ext&ieurs -
Methode en escalier
Reference number
ISO 11173:1994(E)
ISO 11173:1994(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. Esch 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.
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.
International Standard ISO 11173 was prepared by Technical Committee
lSO/TC 138, Plastics pipes, fittings and valves for the transport of fluids,
Subcommittee SC 5, Genera/ properties of pipes, fittings and va/ves of
plastic materials and their accessories - Test methods and basic
specifica tions.
0 ISO 1994
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanicaf, rncluding photocopying and
microfilm, without permrssion in writing from the publisher.
International Organization for Standardization
CH-1 211 Geneve 20 l Switzerland
Case postale 56 l
Printed in Switzerland
ii
INTERNATIONAL STANDARD o ISO ISO 11173:1994(E)
Thermoplastics pipes - Determination of resistance to
external blows - Staircase method
1 Scope 3.2 failure: Unless otherwise specified in the
product Standard, shattering or any Crack or Split on
This International Standard specifies a method for
the inside of the pipe that was caused by the impact
determining the resistance to external blows of ther-
and that tan be seen by the naked eye (lighting
moplastic pipes of circular Cross-section; it is called
devices may be used to assist in examining the
the staircase method.
specimens).
This method is applicable to isolated batches of pipe
Indentation of the test piece or a crease on the
to be tested at 0 “C.
surface shall not be considered a failure.
NOTE 1 If testing below 0 “C is necessary, the tempera-
ture of - 20 “C is recommended.
4 Principle
2 Normative reference Test pieces, comprising tut lengths of Pipe, are each
subjected to a Single blow by a falling striker of
specified mass and shape dropped from one of a
The following Standard contains provisions which,
sequence of different heights onto a random Position
through reference in this text, constitute provisions of
around the circumference of the Pipe.
this International Standard. At the time of publication,
the edition indicated was valid. All Standards are
If a test piece fails, the drop height for the next blow
subject to revision, and Parties to agreements based
is decreased by a predetermined amount. If a test
on this International Standard are encouraged to
piece does not fail, the drop height for the next blow
investigate the possibility of applying the most recent
is increased accordingly. If sufficient test pieces are
edition of the Standard indicated below. Members of
used, the Hs0 value of a batch, or a production run
IEC and ISO maintain registers of currently valid
from an extruder, tan be calculated.
International Standards.
The severity of this test method tan be adjusted by
ISO 6603-1 :1985, Plastics - Determination of multi-
changing the mass of the striker and/or the test
axial impact behaviour of rigid plastics - Part 7:
temperature.
Falling dart method.
3 Definitions
5 Apparatus
For the purposes of this International Standard, the
following definitions apply.
5.1 Falling-weight testing machine, incorporating
the following basic components (see figure 1).
3.1 drop height for 50 % failure, I&: Height of fall
of a striker of sp
...