1、BRITISH STANDARDBS EN ISO 8655-1:2002Piston-operated volumetric apparatus Part 1: Terminology, general requirements and user recommendationsICS 01.040.17; 17.060g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g4
2、4g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Incorporating December 2008corrigendum National forewordThis British Standard is the UK implementation of EN ISO 8655-1:2002. It is identical with ISO 8655-1:2002, incorporating corrigendum December 2008. It supersedes BS 7653-1:1993 which
3、 is withdrawn. Together, Parts 1, 2 and 6 of BS EN ISO 8655:2002 replaces BS 6018:1991 and BS 7532:1991 which are withdrawn.The start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by ISO corrigendum December 2008 is indicated in the text by .T
4、he UK participation in its preparation was entrusted by Technical Committee LBI/36, Laboratory glassware and related apparatus, to Subcommittee LBI/36/1, General and volumetric, glass and plastics apparatus.A list of organizations represented on this subcommittee can be obtained on request to its se
5、cretary.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 cannot confer immunity from legal obligations.BS EN ISO 8655-1:2002This British Standard waspublished under the author
6、ityof the Standards Policy andStrategy Committeeon 22 October 2002 BSI 2010ISBN 978 0 580 66188 4Amendments/corrigenda issued since publicationDate Comments 30 April 2010 Implementation of ISO corrigendum December 2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 8655-1September 2002ICS 01.0
7、40.17; 17.060English versionPiston-operated volumetric apparatus - Part 1: Terminology,general requirements and user recommendations (ISO 8655-1:2002)Appareils volumtriques piston - Partie 1: Dfinitions,exigences gnrales et recommandations pour lutilisateur(ISO 8655-1:2002)Volumenmessgerte mit Hubko
8、lben - Teil 1: Begriffe,allgemeine Anforderungen und Gebrauchsempfehlungen(ISO 8655-1:2002)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 giving this EuropeanStandard the status o
9、f a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version i
10、n any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, German
11、y, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2002 CEN All rig
12、hts of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 8655-1:2002 EForewordThis document (ISO 8655-1:2002) has been prepared by Technical Committee ISO/TC 48“Laboratory glassware and related apparatus“ in collaboration with Technical CommitteeCEN
13、/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 publicationof an identical text or by endorsement, at the latest by March 2003, and conflicting nationalstandards shall be withdrawn at the lates
14、t by March 2003.According to the CEN/CENELEC Internal Regulations, the national standards organizations ofthe following countries are bound to implement this European Standard: Austria, Belgium,Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, Malta, Neth
15、erlands, Norway, Portugal, Spain, Sweden, Switzerland and theUnited Kingdom.Endorsement noticeThe text of the International Standard ISO 8655-1:2002 has been approved by CEN as aEuropean Standard without any modifications.BS EN ISO 8655-1:2002EN ISO 8655-1:2002 (E)iiiContents Page1 Scope . 12 Normat
16、ive references . 13 Terms and definitions 24 Types of piston-operated volumetric apparatus 45 General requirements and testing 56 Product information 57 Factors affecting choice of piston-operated volumetric apparatus 68 Marking . 7AnnexA List of equivalent terms. 8Bibliography. 9BS EN ISO 8655-1:20
17、02EN ISO 8655-1:2002 (E)This page deliberately set blankvIntroductionISO 8655 addresses the needs of: suppliers, as a basis for quality control including, where appropriate, the issuance of suppliers declarations; test houses and other bodies, as a basis for independent certification; users of the e
18、quipment, to enable routine checking of accuracy.The tests specified should be carried out by trained personnel.BS EN ISO 8655-1:2002EN ISO 8655-1:2002 (E)1Piston-operated volumetric apparatus Part 1:Terminology, general requirements and user recommendations1 ScopeThis part of ISO 8655 specifies the
19、 general requirements for piston-operated volumetric apparatus. It is applicable topiston pipettes, piston burettes, dilutors and dispensers. It furthermore defines terms for the use of piston-operatedvolumetric apparatus and gives user recommendations.ISO 8655 is not applicable to medical products
20、intended for use on human beings, e.g. for medical syringes.NOTE For metrological requirements, maximum permissible errors, requirements for marking and information to be provided forusers for piston-operated volumetric apparatus, see ISO 8655-2 for piston pipettes, see ISO 8655-3 for piston burette
21、s, seeISO 8655-4 for dilutors and see ISO 8655-5 for dispensers. Conformity testing (type evaluation) of piston-operated volumetricapparatus is given in ISO 8655-3.For all other tests (e.g. quality assurance by the supplier, analytical and measuring equipment qualityassurance by the user) see ISO 86
22、55-6 or alternative test methods.2 Normative referencesThe following normative documents contain provisions which, through reference in this text, constitute provisions ofthis part of ISO 8655. For dated references, subsequent amendments to, or revisions of, any of these publications donot apply. Ho
23、wever, parties to agreements based on this part of ISO 8655 are encouraged to investigate thepossibility 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 ma
24、intain registers ofcurrently valid International Standards.ISO 8655-2:2002, Piston-operated volumetric apparatus Part 2: Piston pipettesISO 8655-3:2002, Piston-operated volumetric apparatus Part 3: Piston burettesISO 8655-4:2002, Piston-operated volumetric apparatus Part 4: DilutorsISO 8655-5:2002,
25、Piston-operated volumetric apparatus Part 5: DispensersISO 8655-6:2002, Piston-operated volumetric apparatus Part 6: Gravimetric methods for the determination ofmeasurement errorIEC 60073, Basic and safety principles for man-machine interface, marking and identification Coding principles forindicati
26、on devices and actuatorsIEC 61010-1, Safety requirements for electrical equipment for measurement, control and laboratory use Part 1:General requirementsIEC 61326-1, Electrical equipment for measurement, control and laboratory use EMC requirementsAlternative test methods such as photometric and titr
27、imetric methods are givenin ISO 8655-7.BS EN ISO 8655-1:2002EN ISO 8655-1:2002 (E)2 3 Terms and definitionsFor the purposes of this part of ISO 8655, the following terms and definitions apply.3.1 Metrological terms3.1.1 maximum permissible errorupper or lower permitted extreme value for the deviatio
28、n of the dispensed volume from the nominal volume (3.1.5) orselected volume (3.1.6) of a piston-operated volumetric apparatusNOTE 1 A general definition for maximum permissible error is given in the VIM.NOTE 2 The maximum permissible errors of piston-operated volumetric apparatus are specified in IS
29、O 8655-2 to ISO 8655-5.Conformity testing for observance of maximum permissible errors is performed gravimetrically in accordance with ISO 8655-6.3.1.2 systematic errorpiston-operated volumetric apparatus difference between the dispensed volume and the nominal volume orselected volume of the piston-
30、operated volumetric apparatusNOTE 1 General definitions for systematic error are given in the VIM and ISO 3534-2.NOTE 2 For conformity testing in accordance with ISO 8655-6, the systematic error is ascertained by taking the mean of10 measurements.3.1.3 random errorpiston-operated volumetric apparatu
31、s scatter of the dispensed volumes around the mean of the dispensed volumesNOTE 1 General definitions for random error are given in the VIM and NOTE 2 For conformity testing in accordance with ISO 8655-6, the random error is ascertained by taking the repeatabilitystandard deviation of 10 measurement
32、s.3.1.4 uncertainty of measurementvolume dispensed by a piston-operated apparatus parameter, associated with the dispensed volume, thatcharacterizes the dispersion of the volumes that could reasonably be attributed to the dispensed volumeNOTE 1 Adapted from the VIM.NOTE 2 The uncertainty of measurem
33、ent comprises portions of the systematic and random error of measurement. Thecalculation of the uncertainty of measurement can be performed with the equation given in annex B of ISO 8655-6:2002.3.1.5 nominal volumepiston-operated volumetric apparatus volume specified by the manufacturer and used for
34、 identification and forindication of the measuring rangeNOTE For specific piston-operated volumetric apparatus such as variable-volume piston pipettes and multi-channel pistonpipettes, this definition is further qualified in the applicable parts of ISO 8655.3.1.6 selected volumevariable-volume volum
35、etric apparatus volume set by the user, in order to dispense a volume chosen from the usefulvolume range (3.1.7) of a variable-volume piston-operated volumetric apparatusNOTE For a fixed-volume piston-operated volumetric apparatus, the selected volume is equal to the nominal volume.ISO 3534-2. BS EN
36、 ISO 8655-1:2002EN ISO 8655-1:2002 (E)33.1.7 useful volume rangethat part of the nominal volume which allows dispensing under observance of the maximum permissible errors asspecified in the applicable part of ISO 8655NOTE 1 The upper limit of the useful volume range is always the nominal volume. The
37、 lower limit is of the nominal volumeif not otherwise specified by the supplier.NOTE 2 For piston-operated burettes, provision may be made in the design for the burette to be recharged automatically(involving more than one stroke of the piston) before the required volume has been dispensed.3.1.8 dea
38、d air volumepiston-operated pipettes with air interface air volume between the lower part of the piston and the surface of theliquid3.1.9 dead liquid volumepositive displacement pipettes, burettes, dilutors and dispensers amount of liquid which does not belong to thedispensed volume and which is con
39、tained during operation in aspiration or expelling tubes, valves and within thecylinder3.1.10 adjustmentpiston-operated volumetric apparatus manufacture of an apparatus within appropriate tolerances, or the supplierssetting of the apparatus, ensuring the metrological performance, as specified in the
40、 applicable part of ISO 8655, fora reference temperature of 3.1.11 user adjustmentpiston-operated pipette adjustment employing only the means at the disposal of the userNOTE 1 Adapted from the VIM.NOTE 2 Adjustment requires operations which modify the apparatus for subsequent measurements.3.1.12 cal
41、ibrationpiston-operated volumetric apparatus set of operations that establish the relationship between the dispensedvolume and the corresponding nominal or selected volume of the apparatusNOTE 1 Adapted from the VIM.NOTE 2 The result of a calibration permits the determination of correction values of
42、 the dispensed volume and its associatedexpanded uncertainty, e.g. following an adjustment or user adjustment.NOTE 3 The result of a calibration may be recorded in a document called a calibration certificate or a calibration report.NOTE 4 Calibration requires no operation which permanently modifies
43、the apparatus.3.2 Terms related to testing3.2.1 conformity testingpiston-operated volumetric apparatus systematic examination to determine whether the requirements specified inthis International Standard, especially in a metrological sense, are fulfilledNOTE 1 Adapted from ISO/IEC Guide 2.NOTE 2 The
44、 corresponding test methods are specified in the applicable part of ISO 8655.10 %20C or 27 C BS EN ISO 8655-1:2002EN ISO 8655-1:2002 (E)4 3.2.2 type testingconformity testing on the basis of one or more specimens of a product representative of the production3.2.3 supplierparty that is responsible fo
45、r the piston-operated volumetric apparatus and is able to ensure that quality assurance isexercisedNOTE This definition may apply to manufacturers, distributors, importers, assemblers, service organizations, etc.3.2.4 suppliers declarationdocument by which a supplier gives written assurance that a p
46、iston-operated volumetric apparatus conforms to therequirements of this International StandardNOTE The suppliers declaration can be issued after conformity testing.3.2.5 certificate of conformitydocument issued under the rules of a certification system, providing confidence that conformity testing h
47、as beenperformed and that the piston-operated volumetric apparatus fulfills the requirements specified in this InternationalStandardNOTE 1 Adapted from ISO/IEC Guide 2.NOTE 2 Certificates of conformity for piston-operated volumetric apparatus are always related to the entire system includingmetrolog
48、ically relevant accessories. For this reason, certificates of conformity for pipette tips and for burette change-over unitsindicate combinations of piston-operated volumetric apparatus and accessories for which the certificate applies.3.2.6 calibration certificatedocument issued after the calibratio
49、n of a piston-operated volumetric apparatus, reporting the result of calibration4 Types of piston-operated volumetric apparatus4.1 GeneralPiston-operated volumetric apparatus includes a range of devices intended to aspirate or deliver specific volumes ofliquids; they may be manually or automatically operated and are controlled by mechanical, electro-mechanical orelectronic means.4.2 Piston pipettesPiston-operated pipettes are used to pick up and deliver liquids. Single-channel piston pipettes have only onepisto
