EN ISO 8655-3:2022

Piston-operated volumetric apparatus - Part 3: Burettes (ISO 8655-3:2022)

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).

Volumenmessgeräte mit Hubkolben - Teil 3: Büretten (ISO 8655-3:2022)

Dieses Dokument trifft Festlegungen hinsichtlich
—   metrologischer Anforderungen,
—   Fehlergrenzen,
—   Anforderungen an die Kennzeichnung und
—   Benutzerinformation
für Büretten. Dieses Dokument gilt für Büretten mit Nennvolumina bis 100 ml, die dazu konzipiert sind, das festgelegte Volumen abzugeben (Ex).

Appareils volumétriques à piston - Partie 3: Burettes (ISO 8655-3:2022)

Le présent document spécifie:
—    les exigences métrologiques;
—    les erreurs maximales tolérées;
—    les exigences relatives au marquage; et
—    les informations à fournir aux utilisateurs;
pour les burettes. Le présent document est applicable aux burettes d’un volume nominal allant jusqu’à 100 ml, conçues pour distribuer leur volume spécifié (Ex).

Volumetrične naprave, delujoče na bat - 3. del: Birete (ISO 8655-3:2022)

Ta dokument določa:
– meroslovne zahteve;
– največje dopustne pogreške;
– zahteve za označevanje; in
– informacije, predvidene za uporabnike
za birete. Ta dokument se uporablja za birete z nazivnimi prostorninami do 100 ml, ki so zasnovane za dovajanje predvidenega odmerka (Ex).

General Information

• Status: Published
• Publication Date: 10-May-2022
• Withdrawal Date: 29-Nov-2022
• ICS: 17.060 - Measurement of volume, mass, density, viscosity
• ICS: 71.040.20 - Laboratory ware and related apparatus
• Technical Committee: CEN/TC 332 - Laboratory equipment
• Drafting Committee: CEN/TC 332/WG 1 - Glass and plastics devices including volumetric instruments
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 11-May-2022
• Completion Date: 11-May-2022
• Ref Project: SIST EN ISO 8655-3:2022 - Piston-operated volumetric apparatus - Part 3: Burettes (ISO 8655-3:2022)

Relations

• Replaces: EN ISO 8655-3:2002/AC:2009 - Piston-operated volumetric apparatus - Part 3: Piston burettes (ISO 8655-3:2002/Cor 1:2008)
• Effective Date: 18-May-2022
• Replaces: EN ISO 8655-3:2002 - Piston-operated volumetric apparatus - Part 3: Piston burettes (ISO 8655-3:2002)
• Effective Date: 11-Apr-2018

Overview

EN ISO 8655-3:2022 - "Piston-operated volumetric apparatus - Part 3: Burettes" specifies the metrological and labeling requirements for piston-operated burettes with nominal volumes up to 100 ml designed to deliver their specified volume (Ex). The standard defines how burettes are adjusted, tested and documented so users and calibration laboratories can determine and rely on the accuracy and repeatability of volumetric deliveries.

Key topics and technical requirements

• Scope & applicability: Applies to burettes (manual, electric, pneumatic or hydraulic drives) with nominal volumes ≤ 100 ml intended to deliver Ex.
• Metrological requirements: Defines procedures and criteria for stating trueness and precision of the total system (drive plus change-over units where applicable).
• Maximum permissible errors: Tables of systematic and random error limits (see Tables 1 and 2). If a selected usable volume is not tabulated, the standard provides a formula to scale errors by Vnom/Vs and caps the error at 25%. Volumes below 10% of nominal are treated specially.
• Adjustment:
  • Initial adjustment at the factory.
  • Subsequent adjustment allowed per manufacturer instructions and referenced measurement methods.
  • Adjustment reference conditions: standard temperatures (20 °C or 27 °C options), 50% RH and 101.3 kPa using grade 3 water (ISO 3696:1987).
  • Any subsequent adjustment must be visibly documented.
• User information & marking: Requirements for markings and the information manufacturers must supply to users (performance data, applicable drive/change-over combinations, calibration instructions).
• Reference measurement procedures: Gravimetric (ISO 8655-6), photometric (ISO 8655-8) and alternative procedures (ISO 8655-7) are normative for calibration and verification.

Practical applications and users

• Laboratories performing titrations and end-point determinations where delivered volume must be known precisely (analytical chemistry, pharmaceutical QC, environmental testing).
• Manufacturers of piston burettes for quality control and product declarations.
• Calibration and testing laboratories, inspection bodies and maintenance teams performing routine checks, verifications and re-adjustments.
• Educational and research labs that require documented volumetric performance for compliance and reproducibility.

Related standards

• ISO 8655-1 - Terminology, general requirements and user recommendations
• ISO 8655-6 - Gravimetric reference measurement procedure
• ISO 8655-7 - Alternative measurement procedures
• ISO 8655-8 - Photometric reference measurement procedure
• ISO 3696 - Water for analytical laboratory use

EN ISO 8655-3:2022 is essential for anyone responsible for the accuracy, calibration or procurement of piston-operated burettes and supports consistent volumetric measurement practices across laboratories and manufacturing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2022
Nadomešča:
SIST EN ISO 8655-3:2002
SIST EN ISO 8655-3:2002/AC:2009
Volumetrične naprave, delujoče na bat - 3. del: Birete (ISO 8655-3:2022)
Piston-operated volumetric apparatus - Part 3: Burettes (ISO 8655-3:2022)
Volumenmessgeräte mit Hubkolben - Teil 3: Büretten (ISO 8655-3:2022)
Appareils volumétriques à piston - Partie 3: Burettes (ISO 8655-3:2022)
Ta slovenski standard je istoveten z: EN ISO 8655-3:2022
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 8655-3
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2022
EUROPÄISCHE NORM
ICS 17.060 Supersedes EN ISO 8655-3:2002, EN ISO 8655-
3:2002/AC:2009
English Version
Piston-operated volumetric apparatus - Part 3: Burettes
(ISO 8655-3:2022)
Appareils volumétriques à piston - Partie 3: Burettes Volumenmessgeräte mit Hubkolben - Teil 3: Büretten
(ISO 8655-3:2022) (ISO 8655-3:2022)
This European Standard was approved by CEN on 11 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 8655-3:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 8655-3:2022) 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 8655-3:2002.
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 8655-3:2022 has been approved by CEN as EN ISO 8655-3:2022 without any
modification.
INTERNATIONAL ISO
STANDARD 8655-3
Second edition
2022-04
Piston-operated volumetric
apparatus —
Part 3:
Burettes
Appareils volumétriques à piston —
Partie 3: Burettes
Reference number
ISO 8655-3:2022(E)
ISO 8655-3:2022(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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 8655-3:2022(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 8655-3:2022(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
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
...