Piston-operated volumetric apparatus

Appareils volumétriques à piston

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Status
Published
Current Stage
5060 - Close of voting Proof returned by Secretariat
Completion Date
12-Jan-2022
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ISO/FDIS 8655-3 - Piston-operated volumetric apparatus
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FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 8655-3
ISO/TC 48
Piston-operated volumetric
Secretariat: DIN
apparatus —
Voting begins on:
2021-11-17
Part 3:
Voting terminates on:
Burettes
2022-01-12
Appareils volumétriques à piston —
Partie 3: Burettes
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 8655-3:2021(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
---------------------- Page: 1 ----------------------
ISO/FDIS 8655-3:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© 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.
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Email: copyright@iso.org
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Published in Switzerland
© ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/FDIS 8655-3:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction .................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 1

4 Principle of operation ..................................................................................................................................................................................... 1

5 Adjustment .................................................................................................................................................................................................................2

5.1 Basis of adjustment ............................................................................................................................................................................ 2

5.2 Initial adjustment ................................................................................................................................................................................. 2

5.3 Subsequent adjustment ................................................................................................................................................................... 2

6 Metrological performance requirements ................................................................................................................................. 3

6.1 General ........................................................................................................................................................................................................... 3

6.2 Calculation of maximum permissible errors not given in Tables 1 and 2 .......................................... 3

7 User information .................................................................................................................................................................................................. 5

8 Marking ........................................................................................................................................... ............................................................................... 6

8.1 Piston burettes ....................................................................................................................................................................................... 6

8.2 Change-over units (if applicable) ........................................................................................................................................... 6

iii
© ISO 2021 – All rights reserved
---------------------- Page: 3 ----------------------
ISO/FDIS 8655-3:2021(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 8655-3:2002), which has been technically

revised. It also incorporates the Technical Corrigendum ISO 8655-3:2002/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;
— 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
---------------------- Page: 4 ----------------------
ISO/FDIS 8655-3:2021(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 8655-3:2021(E)
Piston-operated volumetric apparatus —
Part 3:
Burettes
1 Scope
This document specifies
— metrological requirements,
— maximum permissible errors,
— requirements for marking and
— information to be provided for users,

for burettes. This document is applicable to burettes with nominal volumes up to 100 ml, designed to

deliver their specified 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

recommendations

ISO 8655-6, Piston-operated volumetric apparatus — Part 6: Gravimetric reference measurement

procedure for the determination of volume
ISO 8655-7, Piston-operated vo
...

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