《BS-EN-ISO-8655-4-2002.pdf》由会员分享，可在线阅读，更多相关《BS-EN-ISO-8655-4-2002.pdf（18页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN ISO 8655-4:2002 Piston-operated volumetric apparatus Part 4: Dilutors The European Standard EN ISO 8655-4:2002 has the status of a British Standard ICS 17.060 ? Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:21:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO
2、 8655-4:2002 This British Standard, having been prepared under the direction of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 22 October 2002 BSI 22 October 2002 ISBN 0 580 40614 8 National forewo
3、rd This British Standard is the official English language version of EN ISO 8655-4:2002. It is identical with ISO 8655-4:2002. It, together with Parts 2, 3 and 5 of BS EN ISO 8655:2002, supersedes BS 7653-2:1993 which is withdrawn. The UK participation in its preparation was entrusted by Technical C
4、ommittee LBI/36, Laboratory glassware and related apparatus, to Subcommittee LBI/36/1, General and volumetric, glass and plastics apparatus, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The Bri
5、tish Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards On
6、line. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the respons
7、ible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover
8、, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, pages 1 to 6, the Annex ZA page and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateCommen
9、ts Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:21:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8655-4 September 2002 ICS 17.060 English version Piston-operated volumetric apparatus - Part 4: Dilutors (ISO 8655-4:2002) Appareils
10、volumtriques piston - Partie 4: Diluteurs (ISO 8655-4:2002) Volumenmessgerte mit Hubkolben - Teil 4: Dilutoren (ISO 8655-4:2002) This European Standard was approved by CEN on 13 July 2002. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for gi
11、ving 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 Management Centre or to any CEN member. This European Standard exists in three official versi
12、ons (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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cze
13、ch Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: ru
14、e de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8655-4:2002 E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:21:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI I NESO 68-55:42( 200
15、E) 2 Foreword This document (ISO 8655-4:2002) 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 th
16、e status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2003, and conflicting national standards shall be withdrawn at the latest by March 2003. According to the CEN/CENELEC Internal Regulations, the national standards organizations of th
17、e following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text
18、of the International Standard ISO 8655-4:2002 has been approved by CEN as a European Standard without any modifications. NOTE Normative references to International Standards are listed in Annex ZA (normative). EN ISO 86554:2002 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:21:37 GMT+00:0
19、0 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARD ISO 8655-4 First edition 2002-09-15 Reference number ISO 8655-4:2002(E) Piston-operated volumetric apparatus Part 4: Dilutors Appareils volumtriques piston Partie 4: Diluteurs EN ISO 86554:2002 Licensed Copy: sheffieldun sheffieldun, na, Sat
20、Nov 18 04:21:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO -55682:4)E(200 ii ISO 2002 Ar llithgr seresvde FDP dicslaimre This FDP fam elitnoc yt deddebme niayfep.seca In roccatiw ecnadA hycilop gnisnecil sebod, thf sim eliarp eb ytnieiv ro dewb detu sllah ton eb tidesselnu de tt ehyfepseca hwich
21、 rae meil era deddebct desneo tsni dnalat no delmoc ehtupre epfrromign tide ehti.gn In odaolnwt gnidhis file, rapticca setpe trehiet neh serilibisnopty fo ton fnirisebodA gnign ilop gnisnecilcy. TI ehSO tneCraceS lrteraiat catpecon s illibaity in this aera. ebodA si t armedarak fo dAS ebotsysme Inro
22、ctarop.de teDailfo s tfos ehtware prtcudos t desuo crtaet ehFDP si ff eb nac elit ni dnuoG ehlarene Info talerive to tf eh;eli teh PDF-rctaerap noimateers weer tpof dezimior rptnii.gn vErec yaeeb sah ert nakt neo rusnet etah tf ehi elis tiusbaf elob esu ry ISO merebm seidob. In the kilnuley evtne tt
23、ah a borpmel talerign to ti f si,dnuo saelpfni eorm teh tneCS laretercratai ta thserdda es igvne olebw. ISO 2002 Ar llieser sthgrvsselnU .de torehceps esiwfi,dei rap ont iht fos bupliactim noarper eb yro decudo tuzilina ni dey form b roy nasnaem y, tcelernahcem ro cinoicla, inclidung tohppocoying m
24、dnaicrfomli, tiwtuoh permini noiss wrtif gnirmo ietI rehSO ta tserdda eheb slow or SIsO memreb ydob in toc ehtnury fo tr ehtseuqeer. ISO copyrithg fofiec tsop esaCael 65 G 1121-HCeneva 02 Te.l + 22 14 10 947 11 Fax + 14 47 2290 9 74 E-liam copyrightsio.ch Web wwwsi.oc.h Prni detni Sztiwerldna ii EN
25、ISO 86554:2002 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:21:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI OSI -55682002:4)E( ISO 2002 r llAithgs reservde iii Contents Page 1Scope . 1 2Normative references . 1 3Terms and definitions 1 4Principle of operation 2 5Adjustment 2 6Metrologi
26、cal performance requirements . 3 7User information . 4 8Marking . 4 Bibliography. 6 iii EN ISO 86554:2002 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:21:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO -55682:4)E(200 vi ISO 2002 Ar llithgr seresvde Foreword ISO (the International Orga
27、nization 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 establis
28、hed 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
29、. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. 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 % of
30、 the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 8655 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 8655-4 was prepared by Technica
31、l Committee ISO/TC 48, Laboratory glassware and related apparatus, Subcommittee SC 1, Volumetric instruments. ISO 8655 consists of the following parts, under the general title Piston-operated volumetric apparatus: Part 1: Terminology, general requirements and user recommendations Part 2: Piston pipe
32、ttes Part 3: Piston burettes Part 4: Dilutors Part 5: Dispensers Part 6: Gravimetric methods for the determination of measurement error The following part is under preparation: Part 7: Non-gravimetric methods for the determination of measurement error iv EN ISO 86554:2002 Licensed Copy: sheffieldun
33、sheffieldun, na, Sat Nov 18 04:21:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI OSI -55682002:4)E( ISO 2002 r llAithgs reservde v Introduction ISO 8655 addresses the needs of: suppliers, as a basis for quality control including, where appropriate, the issuance of suppliers declarations; test houses
34、and other bodies, as a basis for independent certification; users of the equipment, to enable routine checking of accuracy. The tests specified should be carried out by trained personnel. v EN ISO 86554:2002 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:21:37 GMT+00:00 2006, Uncontrolled
35、 Copy, (c) BSI 2002:45568 OSI NE Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:21:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ANRETNIITOTS LANDNADRAOSI -55682002:4)E( ISO 2002 r llAithgs reservde 1 Piston-operated volumetric apparatus Part 4: Dilutors 1Scope This part of ISO 8655 speci
36、fies metrological requirements, maximum permissible errors, requirements for marking and information to be provided for users, for dilutors with a sample uptake capacity (In) from to and a diluent capacity (Ex) from to . They are designed to deliver the sample and diluent together in measured propor
37、tion and measured volume. NOTEGeneral requirements and definitions of terms for piston-operated volumetric apparatus are given in ISO 8655-1. Conformity testing (type evaluation) of piston-operated volumetric apparatus is given in ISO 8655-6. Alternative test methods such as photometric and titrimet
38、ric methods will be the subject of a future Part 7 to ISO 8655. For all other tests (e.g. quality assurance by the supplier, analytical and measuring equipment quality assurance by the user) see ISO 8655-6 or alternative test methods. For safety requirements of electrically powered piston dilutors,
39、see IEC 61010-1. 2Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 8655. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties
40、 to agreements based on this part of ISO 8655 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain regis
41、ters of currently valid International Standards. ISO 3696, Water for analytical laboratory use Specification and test methods ISO 8655-1:2002, Piston-operated volumetric apparatus Part 1: Terminology, general requirements and user recommendations ISO 8655-6:2002, Piston-operated volumetric apparatus
42、 Part 6: Gravimetric methods for the determination of measurement error 3Terms and definitions For the purposes of this part of ISO 8655, the terms and definitions given in ISO 8655-1 apply. 5l10 ml50l100 ml 1 EN ISO 86554:2002 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 18 04:21:37 GMT+00:0
43、0 2006, Uncontrolled Copy, (c) BSI ISO -55682:4)E(200 2 ISO 2002 Ar llithgr seresvde 4Principle of operation A dilutor is designed to aspirate accurately a measured volume of a sample liquid and to deliver it together with an accurately measured volume of diluent. Dilutors may be operated manually,
44、electrically, pneumatically or hydraulically and may be hand-held, bottle-top mounting or free-standing bench-top apparatus. They can also be automated analysers components. The drive components may be integral with, or manually separable from the volumetric measuring components (change-over units).
45、 Prior to delivery of diluent, the diluent piston system is charged by aspiration of diluent from a reservoir. After air- bubble-free filling of the system, diluent is drawn into the volume measuring cylinder by the diluent piston, either directly, via the uptake and delivery probe, or indirectly, f
46、rom a reservoir until a volume controlling limit is reached. A measured volume of sample is then aspirated into the uptake and delivery probe. The uptake of sample may be controlled by a second limit to the movement of the diluent piston, or it may involve a second, dedicated, cylinder and piston wi
47、th valves. During delivery, the sample volume in the uptake and delivery probe is expelled, followed by the measured quantity of diluent. 5Adjustment 5.1A dilutor shall be adjusted by its supplier for the uptake and delivery of its stated volumes and for the standard reference temperature of , using
48、 grade 3 water as specified in ISO 3696. 5.2If the dilutor is designed to have its factory preset adjustment altered by the user, the design shall prevent unintentional readjustment. If the user readjusts the dilutor, it shall be clearly and unequivocally indicated on the outside of the dilutor that
49、 readjustment has been effected, for example by means of a mark, a broken seal, or a label affixed by the user. 5.3Type testing of the adjustment shall satisfy the performance requirements specified in clause 6 when the dilutor is tested in accordance with ISO 8655-6. Key 1Volume of diluent 2Piston for sample uptake Figure 1 Schematic drawing of a dilutor 20 C 2 EN ISO 86554:2002 Licensed Copy: sheffieldun sh