1、BRITISH STANDARD BS EN ISO 4142:2002 Incorporating Corrigendum No. 1 Laboratory glassware Test tubes The European Standard EN ISO 4142:2002 has the status of a British Standard ICS 71.040.20 BS EN ISO 4142:2002 This British Standard, having been prepared under the direction of the Materials and Chem
2、icals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 25 September 2002 BSI 16 October 2002 ISBN 0 580 40414 5 National foreword This British Standard is the official English language version of EN ISO 4142:2002. It is identic
3、al with ISO 4142:2002. It supersedes BS 3218:1982 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee LBI/36, Laboratory glassware and related products, to Subcommittee LBI/36/1, General and volumetric. Glass and plastics apparatus which has the responsib
4、ility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “Int
5、ernational Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a
6、British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related internationa
7、l and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title pages, pages ii and iii, a blank page, pages 1 to 4, an inside back cover and a back cover. The BSI
8、 copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 14182 Corrigendum No. 1 16 October 2002 Correction to EN ISO foreword pageEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO4142 August2002 ICS71.040.2
9、0 Englishversion LaboratoryglasswareTesttubes(ISO4142:2002) VerreriedelaboratoireTubesessais(ISO4142:2002) LaborgerteausGlasReagenzglser(ISO4142:2002) ThisEuropeanStandardwasapprovedbyCENon10July2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgiving
10、thisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyothe
11、rlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malt
12、a,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMemb
13、ers. Ref.No.ENISO4142:2002ECORRECTED20021002 Foreword Thisdocument(ENISO4142:2002)hasbeenpreparedbyTechnicalCommitteeISO/TC48 “Laboratoryglasswareandrelatedapparatus“incollaborationwithTechnicalCommittee CEN/TC332“Laboratoryequipment“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegive
14、nthestatusofanationalstandard,eitherbypublication ofanidenticaltextorbyendorsement,atthelatestbyFebruary2003,andconflictingnational standardsshallbewithdrawnatthelatestbyFebruary2003. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowingcountriesareboundtoimpl
15、ementthisEuropeanStandard:Austria,Belgium, CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy, Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,Switzerlandandthe UnitedKingdom. Endorsementnotice ThetextofISO4142:2002hasbeenapprovedbyCENasENISO4142:2002withoutany modif
16、ications. ENISO4142:2002INTERNATIONAL STANDARD ISO 4142 Second edition 2002-08-15 Reference number ISO 4142:2002(E) Laboratory glassware Test tubes Verrerie de laboratoire Tubes essaisENISO4142:2002ii ISO 2002 Ar llithgr seresvde This FDP fam elitnoc yt deddebme niayfep.seca In roccatiw ecnadA hycil
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20、2 T.le + 22 14 10 947 11 Fxa + 14 47 2290 9 74 E-liam cpoyrigthsio.ch Web wwwsi.oc.h ENISO4142:2002 iii 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 norma
21、lly 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 th
22、e 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 in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technic
23、al committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent r
24、ights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 4142 was prepared by Technical Committee ISO/TC 48, Laboratory glassware and related apparatus, Subcommittee SC 2, General laboratory glassware (other than measuring apparatus). This se
25、cond edition cancels and replaces the first edition (ISO 4142:1997) by incorporating the following changes: a) culture tubes have been deleted; b) the material has been more precisely specified; c) three types of test tubes have been introduced; d) additional series and nominal sizes have been added
26、. ENISO4142:2002ANRETNIITOTS LANDNADRA ISO 4142002:2)E(1 Laboratory glassware Test tubes 1 Scope This International Standard specifies a range of test tubes, suitable for general laboratory use, fabricated from borosilicate, neutral or soda/lime glass, which are designated Type I, Type II and Type I
27、II respectively. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However,
28、parties to agreements based on this International Standard 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 m
29、aintain registers of currently valid International Standards. ISO 695, Glass Resistance to attack by a boiling aqueous solution of mixed alkali Method of test and classification ISO 719, Glass Hydrolytic resistance of glass grains at 98 C Method of test and classification ISO 1776:1985, Glass Resist
30、ance to attack by hydrochloric acid at 100 C Flame emission or flame atomic absorption spectrometric method ISO 3585, Borosilicate glass 3.3 Properties ISO 4803, Laboratory glassware Borosilicate glass tubing 3 Classification and designation The following three types of test tubes are specified. Typ
31、e I test tubes (borosilicate glass) are suitable for most usual laboratory applications. They will stand most temperatures commonly used, including boiling of samples. These test tubes are highly chemically resistant. Type II test tubes (neutral glass) are suitable for many less demanding applicatio
32、ns, and will withstand moderate warming, e. g. in a water bath, and/or moderate temperature change. They should not be taken from the cold and placed directly into the hottest part of the flame without being preheated. Type II test tubes are chemically resistant and are suitable for use with samples
33、 which are susceptible to pH changes. Type III test tubes (soda/lime glass) are suitable for general mixing and simple laboratory work, and will withstand moderate warming, e. g. in a water bath, and/or moderate temperature change. They should not be placed into naked flames. Their chemical resistan
34、ce is limited. These type numbers are specific to this International Standard and should not be confused with similar numbering used in the hydrolytic resistance classification. If a designation of test tubes is required, this shall be by reference to this International Standard ISO 4142, together w
35、ith the type designation, the nominal size and the wall thickness of the test tube. ENISO4142:20022 EXAMPLE For a test tube Type I with a nominal size of and a medium wall thickness of , the designation would be as follows: Test tube ISO 4142-10 75-M 4M a t e r i a l 4.1 Test tubes shall be of clear
36、 glass as free as possible from visible defects and internal stress. 4.2 Type I test tubes shall be manufactured from borosilicate glass in accordance with ISO 3585 and ISO 4803, with coefficient of thermal expansion of . 4.3 Type II test tubes shall be manufactured from neutral glass as specified b
37、y the manufacturer. Typically the coefficient of thermal expansion will be . 4.4 Type III test tubes shall be manufactured from soda/lime glass as specified by the manufacturer. Typically the coefficient of thermal expansion will be . 4.5 Water resistance shall be in accordance with ISO 719, alkali
38、resistance in accordance with ISO 695 and acid resistance in accordance with ISO 1776. The resistance classes of the glass types shall comply with Table 1. 5 Construction and dimensions 5.1 The top (open end) of each test tube shall be smoothly finished at right angles to the axis, with either a rim
39、 or a fire-polished end. 5.2 Dimensions shall be in accordance with the lengths, diameters and tolerances shown in the Table 2 to Table 4. 5.3 The bottom of each test tube shall be essentially hemispherical, with a wall thickness of no less than and no more than of the nominal side wall thickness. 6
40、 Marking 6.1 Each Type I test tube shall be marked to clearly indicate that it is manufactured from borosilicate glass with a coefficient of thermal expansion of , e.g. “boro 3.3”. The manufacturers or vendors name or mark may also be applied to each test tube. 6.2 In the case of Type II and Type II
41、I test tubes, the appropriate information may be on the packaging only. Table 1 Minimum requirements for chemical resistance Property Minimum requirement Type I Type II Type III Water resistance Class HGB 1 Class HGB 1 Class HGB 3 Acid resistance Na 2 O aNa 2 O a Alkali resistance Class A2 Class A2
42、Class A2 a See clause 9 in ISO 1776:1985. 10 mm 75 mm 1,0 mm 3,3 10 6 K 1 5,0 10 6 K 1 9,1 10 6 K 1 100 g 100 g 67 % 167 % 3,3 10 6 K 1 ENISO4142:2002 3 Table 2 Type I test tubes, made from borosilicate glass 3.3 Dimensions in millimetres Nominal size Length External diameter Wall thickness Medium H
43、eavy Series 1 75 75 125 150 150 150 Series 2 100 100 100 100 150 160 180 180 200 Table 3 Type II test tubes, made from neutral glass Dimensions in millimetres Nominal size Length External diameter Wall thickness Series 1 75 10 75 12 125 16 150 18 0 150 20 150 24 Series 2 100 10 100 12 100 13 100 16
44、150 16 160 16 180 18 180 20 200 24 2 0,5 10 75 10 0,15 1,0 0,04 1,5 0,1 12 75 12 0,2 1,0 0,04 1,5 0,1 16 125 16 0,2 1,2 0,05 1,8 0,1 18 150 18 0,2 1,2 0,05 1,8 0,1 20 150 20 0,25 1,2 0,05 1,8 0,1 24 150 24 0,25 1,2 0,05 1,8 0,1 10 100 10 0,15 1,0 0,04 1,5 0,1 12 100 12 0,2 1,0 0,04 1,5 0,1 13 100 13
45、 0,2 1,0 0,04 1,5 0,1 16 100 16 0,2 1,2 0,05 16 150 16 0,2 1,2 0,05 1,8 0,1 16 160 16 0,2 1,2 0,05 18 180 18 0,2 1,2 0,05 20 180 20 0,25 1,2 0,05 1,8 0,1 24 200 24 0,25 1,2 0,05 1,8 0,1 2 0,5 10 75 1,0 0,04 12 75 1,0 0,04 16 125 1,2 0,04 18 150 1,2 0,04 20 15 1,2 0,05 24 150 1,2 0,05 10 100 1,0 0,04
46、 12 100 1,0 0,04 13 100 1,0 0,04 16 100 1,2 0,04 16 150 1,2 0,04 16 160 1,2 0,04 18 180 1,2 0,04 20 180 1,2 0,05 24 200 1,2 0,05 ENISO4142:20024 Table 4 Type III test tubes, made from soda lime glass Dimensions in millimetres Nominal size Length Light wall Medium wall External diameter Wall thicknes
47、s External diameter Wall thickness Series 1 75 75 125 150 150 150 Series 2 100 100 100 100 a 150 160 a 180 200 a Or . 2 10 75 10 0,2 0,6 0,04 10 0,25 1,0 0,05 12 75 12 0,2 0,6 0,04 12 0,25 1,0 0,05 16 125 16 0,2 0,6 0,04 16 0,25 1,0 0,05 18 150 18 0,2 0,6 0,04 18 0,25 1,0 0,05 20 150 20 0,3 0,8 0,05 20 0,5 1,2 0,05 24 150 24 0,3 0,8 0,05 24 0,5 1,2 0,05 10 100 10 0,2 0,6 0,04 10 0,25 1,0 0,05 12 100 12 0,2 0,6 0,04 12 0,25 1,0 0,05 13 100 13 0,2 0,6 0,04 13 0,25 1,0 0,05 16 100 16 0,2 0,6 0,04 16 0,25 1,0 0,05 16 150 16 0,
