BS-EN-ISO-648-2008.pdf
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1、BS EN ISO 648:2008 ICS 17.060 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Laboratory glassware Single-volume pipettes (ISO 648:2008) Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:25, Uncontrolled Copy, (c) BSI This Briti
2、sh Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2008 BSI 2008 ISBN 978 0 580 58559 3 Amendments/corrigenda issued since publication DateComments BS EN ISO 648:2008 National foreword This British Standard is the UK implementation of EN ISO 64
3、8:2008. It supersedes BS1583:1986 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee LBI/36/1, General and volumetric, glass and plastics apparatus. A list of organizations represented on this committee can be obtained on request to its secretary. This p
4、ublication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:25
5、, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 648 October 2008 ICS 17.060 English Version Laboratory glassware - Single-volume pipettes (ISO 648:2008) Verrerie de laboratoire - Pipettes un volume (ISO 648:2008) Laborgerte aus Glas - Vollpipetten (ISO 648:2008)
6、 This European Standard was approved by CEN on 4 October 2008. 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 ref
7、erences concerning such national standards may be obtained on application to the CEN 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 membe
8、r into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, L
9、atvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 B
10、russels 2008 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 648:2008: E Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:25, Uncontrolled Copy, (c) BSI BS EN ISO 648:2008 EN ISO 648:2008 (E) 3 F
11、oreword This document (EN ISO 648:2008) has been prepared by Technical Committee ISO/TC 48 “Laboratory glassware and related apparatus“ 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 stat
12、us of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2009, and conflicting national standards shall be withdrawn at the latest by April 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject
13、 of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulga
14、ria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text
15、of ISO 648:2008 has been approved by CEN as a EN ISO 648:2008 without any modification. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:25, Uncontrolled Copy, (c) BSI BS EN ISO 648:2008 ISO 648:2008(E) ISO 2008 All rights reserved iii Contents Page Foreword iv 1 Sco
16、pe . 1 2 Normative references. 1 3 Terms and definitions. 1 4 Basis of adjustment 2 4.1 Unit of volume. 2 4.2 Delivery volume 2 4.3 Reference temperature. 2 5 Types and classes of accuracy. 2 5.1 Classes of accuracy . 2 5.2 Types of single-volume pipette. 2 6 Maximum permissible errors. 3 7 Construc
17、tion 3 7.1 Material 3 7.2 Shape . 3 7.3 Bulb 3 7.4 Dimensions 4 7.5 Top of pipette 5 7.6 Delivery jet. 5 7.7 Delivery time 5 7.8 Waiting time. 6 8 Graduation line(s). 6 9 Setting of the meniscus . 6 10 Marking 6 11 Visibility of graduation lines, figures and inscriptions. 7 12 Colour coding 7 Biblio
18、graphy. 8 Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:25, Uncontrolled Copy, (c) BSI BS EN ISO 648:2008 ISO 648:2008(E) iv ISO 2008 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standa
19、rds 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 organ
20、izations, 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. International Standards are drafted in accordance with the rules given i
21、n the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. 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 %
22、 of the member bodies casting a vote. 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. ISO 648 was prepared by Technical Committee ISO/TC 48, Laborato
23、ry equipment, Subcommittee SC 6, Laboratory and volumetric ware. This second edition cancels and replaces the first edition (ISO 648:1977), which has been technically revised to incorporate the following modifications: a) single-volume pipettes with two marks have been added; b) the waiting time for
24、 pipettes Class AS has been reduced to 5 s; c) dimensions have been modified; d) the nominal volume of 200 ml has been deleted. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:25, Uncontrolled Copy, (c) BSI BS EN ISO 648:2008 INTERNATIONAL STANDARD ISO 648:2008(E) I
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