DIN EN ISO 24998-2009 Plastics laboratory ware - Single-use Petri dishes for microbiological procedures (ISO 24998 2008) English version of DIN EN ISO 24998 2009-03《塑料实验室器皿 微生物过程用单.pdf
《DIN EN ISO 24998-2009 Plastics laboratory ware - Single-use Petri dishes for microbiological procedures (ISO 24998 2008) English version of DIN EN ISO 24998 2009-03《塑料实验室器皿 微生物过程用单.pdf》由会员分享,可在线阅读,更多相关《DIN EN ISO 24998-2009 Plastics laboratory ware - Single-use Petri dishes for microbiological procedures (ISO 24998 2008) English version of DIN EN ISO 24998 2009-03《塑料实验室器皿 微生物过程用单.pdf(16页珍藏版)》请在麦多课文档分享上搜索。
1、March 2009DEUTSCHE NORM English price group 10No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 71.040.20!$VW“1515204www
2、.din.deDDIN EN ISO 24998Plastics laboratory ware Single-use Petri dishes for microbiological procedures (ISO 24998:2008)English version of DIN EN ISO 24998:2009-03Laborgerte aus Kunststoff Einmal-Petrischalen fr mikrobiologische Verfahren (ISO 24998:2008)Englische Fassung DIN EN ISO 24998:2009-03www
3、.beuth.deDocument comprises 16 pagesDIN EN ISO 24998:2009-03 2 National foreword This standard has been prepared by Technical Committee ISO/TC 48 “Laboratory equipment”, Subcommittee SC 6 “Laboratory and volumetric ware” in collaboration with Technical Committee CEN/TC 332 “Laboratory equipment” (Se
4、cretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Laborgerte und Laboreinrichtungen (Laboratory Devices and Installations Standards Committee), Technical Committee NA 055-01-08 AA Volumenmessgerte. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NOR
5、MEN ISO 24998November 2008ICS 71.040.20English VersionPlastics laboratory ware - Single-use Petri dishes formicrobiological procedures (ISO 24998:2008)Matriel de laboratoire en matire plastique - Botes dePetri usage unique pour mthodes microbiologiques (ISO24998:2008)Laborgerte aus Kunststoff - Einm
6、al-Petrischalen frmikrobiologische Verfahren (ISO 24998:2008)This European Standard was approved by CEN on 29 October 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard witho
7、ut any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 ma
8、de by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France,
9、 Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUN
10、GManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 24998:2008: EContents Page 1 2 3 4 5 6 6.1 6.2 6.3 6.4 6.5 7 7.1 7.2 7.3 7.4 8 9 10 11 EN ISO 24998:2008 (E) 2DIN EN ISO
11、 24998:2009-03 Scope . 4 Terms and definitions. 4 Principle of use . 4 Types 5 Material 5 Design and construction 5 General. 5 Dimensions 5 Rim on lid. 6 Venting. 6 Compartments. 6 Performance 7 Resistance to thermal distortion. 7 Stability in stacking 7 Rigidity. 7 Resistance to fracture 7 Limitati
12、on of contamination. 7 Sterility and special microbiological states. 7 Packaging 8 Marking 8 Annex A (normative) Type test for rigidity 9 Annex D (normative) Type test for stability in stacking. 13 Bibliography . 14 Annex C (normative) Type test for resistance to fracture 12 Annex B (normative) Type
13、 test for resistance to thermal distortion 11 Foreword. 3 Foreword This document (EN ISO 24998:2008) 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 i
14、s 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 May 2009, and conflicting national standards shall be withdrawn at the latest by May 2009. Attention is drawn to the possibility that
15、 some of the elements of this document may be the subject 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
16、implement this European Standard: Austria, Belgium, Bulgaria, 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, Switzer
17、land and the United Kingdom. Endorsement notice The text of ISO 24998:2008 has been approved by CEN as EN ISO 24998:2008 without any modification. EN ISO 24998:2008 (E) 3DIN EN ISO 24998:2009-03 1 Scope This International Standard specifies requirements and test methods for plain, single-use Petri d
18、ishes for microbiological use. This International Standard does not apply to products of similar design which may be used for cell or tissue culture purposes. Neither does it apply to dishes supplied ready loaded with microbiological media. NOTE Petri dishes are used for microbiological routine purp
19、oses in very large numbers and consequently, are often handled by robotic equipment. Users of such equipment should satisfy themselves that the Petri dishes of any given manufacturer are suitable for use with such equipment and, if obtained from several sources, are compatible if mixed. 2 Terms and
20、definitions For the purposes of this document, the following terms and definitions apply. 2.1 Petri dish combination of a dish with an accompanying loose-fitting lid, intended to preserve the microbiological integrity of its unused or in-use enclosed, interior space 2.2 dish shallow, cylindrical or
21、square, open-topped container comprising a plane base with an integral outer wall NOTE The dish can be subdivided with internal dividers to form separate compartments. 2.3 lid cover of similar shape to, and larger size than the dish, over which it is placed, inverted, to enclose a working volume NOT
22、E The underside of the lid can incorporate one or more small protuberances (venting protrusions) to facilitate free circulation of environmental gases. Lids without such protrusions are designed to impede such free circulation. 3 Principle of use Under environmentally controlled conditions, selected
23、 to avoid introduction of unwanted micro-organisms, the lid of the Petri dish is lifted and a quantity of microbiologically nutrient medium introduced (poured) into the dish. The dish is recovered and allowed to equilibrate with a predetermined environment. Under similarly suitable conditions, the l
24、id is lifted again and a sample under investigation is then introduced onto the medium in the dish. Following closure and a period of storage under predetermined conditions, growth of any microorganisms originating from the sample may have occurred, enabling further study. NOTE Attention is drawn to
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