ISO/FDIS 8655-5
(Main)Piston-operated volumetric apparatus
Piston-operated volumetric apparatus
Appareils volumétriques à piston
General Information
RELATIONS
Standards Content (sample)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 8655-5
ISO/TC 48
Piston-operated volumetric
Secretariat: DIN
apparatus —
Voting begins on:
2021-11-17
Part 5:
Voting terminates on:
Dispensers
2022-01-12
Appareils volumétriques à piston —
Partie 5: Distributeurs
ISO/CEN PARALLEL PROCESSING
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 8655-5:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2021
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ISO/FDIS 8655-5:2021(E)
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© ISO 2021
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© ISO 2021 – All rights reserved
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ISO/FDIS 8655-5:2021(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 ................................................................................................................................................................................. 3
5.3 Subsequent adjustment ................................................................................................................................................................... 3
6 Metrological performance requirements ................................................................................................................................. 3
6.1 General ........................................................................................................................................................................................................... 3
6.2 Calculation of maximum permissible errors not given in Tables 1 and 2 .......................................... 3
6.3 Dispenser tips .......................................................................................................................................................................................... 6
7 User information .................................................................................................................................................................................................. 6
8 Marking ........................................................................................................................................... ............................................................................... 6
8.1 Dispenser ..................................................................................................................................................................................................... 6
8.2 Dispenser tips .......................................................................................................................................................................................... 7
Bibliography ................................................................................................................................................................................................................................ 8
iii© ISO 2021 – All rights reserved
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ISO/FDIS 8655-5:2021(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 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 48, Laboratory equipment, in collaboration
with the European Committee for Standardization (CEN) Technical Committee CEN/TC 332, Laboratory
equipment, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).This second edition cancels and replaces the first edition (ISO 8655-5:2002), which has been technically
revised. It also incorporates the Technical Corrigendum ISO 8655-5:2002/Cor.1:2008.
The main changes compared to the previous edition are as follows:— ISO 8655-7 and ISO 8655-8 have been added as normative references;
— metrological performance requirements for dispenser tips have been further specified;
— Tables 1 and 2 have been revised.A list of all parts in the ISO 8655 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.© ISO 2021 – All rights reserved
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ISO/FDIS 8655-5:2021(E)
Introduction
The ISO 8655 series addresses the needs of:
— manufacturers, as a basis for quality control including, where appropriate, the issuance of
manufacturer’s declarations;— calibration laboratories, test houses, users of the equipment and other bodies as a basis for
independent calibration, testing, verification and routine tests.The tests specified in the ISO 8655 series are intended to be carried out by trained personnel.
© ISO 2021 – All rights reserved---------------------- Page: 5 ----------------------
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 8655-5:2021(E)
Piston-operated volumetric apparatus —
Part 5:
Dispensers
1 Scope
This document specifies
— metrological requirements,
— maximum permissible errors,
— requirements for marking and
— information to be provided for users,
for dispensers. It is applicable to dispensers with nominal volumes from 1 μl up to 200 ml, designed to
deliver their volume (Ex).2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 3696:1987, Water for analytical laboratory use — Specification and test methods
ISO 8655-1, Piston-operated volumetric apparatus — Part 1: Terminology, general requirements and user
recommendationsISO 8655-6, Piston-operated volumetric apparatus — Part 6: Gravimetric reference measurement
procedure for the determination of volumeISO 8655-7, Piston operated volumetric apparatus — Part 7: Alternative measurement procedures for the
determination of volumeISO 8655-8, Piston-operated volumetric apparatus — Part 8: Photometric reference measurement
procedure for the determination of volume3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8655-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp— IEC Electropedia: available at https:// www .electropedia .org/
...
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