EN ISO 8655-2:2022

SLOVENSKI STANDARD
01-julij-2022
Nadomešča:
SIST EN ISO 8655-2:2002
SIST EN ISO 8655-2:2002/AC:2009
Volumetrične naprave, delujoče na bat - 2. del: Pipete (ISO 8655-2:2022)
Piston-operated volumetric apparatus - Part 2: Pipettes (ISO 8655-2:2022)
Volumenmessgeräte mit Hubkolben - Teil 2: Pipetten (ISO 8655-2:2022)
Appareils volumétriques à piston - Partie 2: Pipettes (ISO 8655-2:2022)
Ta slovenski standard je istoveten z: EN ISO 8655-2:2022
ICS:
17.060 Merjenje prostornine, mase, Measurement of volume,
gostote, viskoznosti mass, density, viscosity
71.040.20 Laboratorijska posoda in Laboratory ware and related
aparati apparatus
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 8655-2
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2022
EUROPÄISCHE NORM
ICS 17.060 Supersedes EN ISO 8655-2:2002, EN ISO 8655-
2:2002/AC:2009
English Version
Piston-operated volumetric apparatus - Part 2: Pipettes
(ISO 8655-2:2022)
Appareils volumétriques à piston - Partie 2: Pipettes Volumenmessgeräte mit Hubkolben - Teil 2: Pipetten
(ISO 8655-2:2022) (ISO 8655-2:2022)
This European Standard was approved by CEN on 13 February 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 8655-2:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 8655-2:2022) has been prepared by Technical Committee ISO/TC 48
"Laboratory equipment" in collaboration with Technical Committee CEN/TC 332 “Laboratory
equipment” the secretariat of which is held by DIN.
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 November 2022, and conflicting national standards
shall be withdrawn at the latest by November 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 8655-2:2002.
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 8655-2:2022 has been approved by CEN as EN ISO 8655-2:2022 without any
modification.
INTERNATIONAL ISO
STANDARD 8655-2
Second edition
2022-04
Piston-operated volumetric
apparatus —
Part 2:
Pipettes
Appareils volumétriques à piston —
Partie 2: Pipettes
Reference number
ISO 8655-2:2022(E)
ISO 8655-2:2022(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
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Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 8655-2:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle of operation . 2
5 Adjustment .2
5.1 Basis of adjustment . 2
5.2 Initial adjustment . 2
5.3 Subsequent adjustment . 2
5.4 Adjustment for other liquid properties . 2
6 Design . 3
6.1 Types of pipette . 3
6.2 Transfer of hand warmth . 3
7 Pipette tips . 4
7.1 General . 4
7.2 Air-displacement pipette tips . 4
7.3 Positive-displacement pipette tips . 4
8 Type, designation . 5
9 Metrological performance requirements . 5
9.1 General . 5
9.2 Fixed-volume pipettes of types A and D1 . 5
9.3 Fixed-volume pipettes of type D2 . 5
9.4 Variable-volume pipettes of types A, D1 and D2 . 6
9.5 Multi-channel pipettes . 6
9.6 Calculation of maximum permissible errors for volumes not listed in Tables 1, 2
and 3 . 6
9.7 Pipette tips . 9
10 User information . 9
10.1 Pipettes . 9
10.2 Pipette tips and accessories. 10
11 Marking . .10
11.1 Pipettes . 10
11.2 Pipette tips . 10
Annex A (informative) Possible sources of error for air displacement pipettes .11
Annex B (informative) Electronic motorised air displacement pipettes and method
for testing in multi-dispensing mode .13
Bibliography .15
iii
ISO 8655-2:2022(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
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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
...