1、BRITISH STANDARD Laboratory glassware - Test tubes The European Standard EN IS0 4142:2002 has the status of a British Standard ICs 71.040.20 BS EN IS0 4142:2002 Incorporat ng Corrigendum No. 1 British Standards NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW - BS EN IS0 4142:2
2、002 Amd. No. Date National foreword This British Standard is the official English language version of EN IS0 4142:2002. It is identical with IS0 4142:2002. It supersedes BS 3218:1982 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee LBI/36, Laboratory g
3、lassware and related products, to Subcommittee LBI/36/1, General and volumetric. Glass and plastics apparatus which has the responsibility to: Comments - - aid enquirers to understand the text; present to the responsible internationaYEuropean committee any enquiries on the interpretation, or proposa
4、ls for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement int
5、ernational 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 Online. This publication does not pu
6、rport 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. O BSI 16 October 2002 14182 Corrigendum No. 1 This British Standard, having been prepared unde
7、r the direction of the Materials and Chemicals Sector Policy and 16 October 2002 Correction to EN IS0 foreword page Summary of pages This document comprises a front cover, an inside front cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 title pages, pages ii and iii, a blank page, pag
8、es 1 to 4, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 25 September 2002 I I ISBN O 580 40414 5 EUROPEAN S
9、TANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 4142 August 2002 ICs 71.040.20 English version Laboratory glassware - Test tubes (IS0 4142:2002) Verrerie de laboratoire -Tubes essais (IS0 4142:2002) Laborgerte aus Glas - Reagenzglser (IS0 4142:2002) This European Standard was approved by CEN on 10 Ju
10、ly 2002. CEN members are bound to comply with the CENICENELEC 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 references concerning such national standards may be obta
11、ined on application to the Management Centre or to any CEN member. This European Standard exists in three offcial versions (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 Cent
12、re has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUR
13、OPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 8-1050 Brussels O 2002 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 4142:2002 E EN IS
14、0 4142:2002 CORRECTED 2002-10-02 Foreword This document (EN IS0 4142:2002) has been prepared by Technical Committee IS0 /TC 48 “Laboratory glassware and related apparatus“ in collaboration with Technical Committee CENTC 332 “Laboratory equipment“, the secretariat of which is held by DIN. This Europe
15、an Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2003, and conflicting national standards shall be withdrawn at the latest by February 2003. According to the CENKENELEC Internal Regulations, the nati
16、onal standards organizations of the 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 Kin
17、gdom. Endorsement notice The text of IS0 4142:2002 has been approved by CEN as EN IS0 4142:2002 without any modifications. INTERNATIONAL STANDARD EN IS0 4142:2002 IS0 41 42 Second edition 2002-08-15 Laboratory glassware - Test tubes Verrerie de laboratoire - Tubes essais Reference number IS0 4142:20
18、02(E) EN IS0 4142:2002 EN IS0 4142:2002 Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member bo
19、dy 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 the work. IS0 collaborates closely with the International Electrot
20、echnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISOAEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Pub
21、lication 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 rights. IS0 shall not be held responsible for identiying any or al
22、l such patent rights. International Standard IS0 41 42 was prepared by Technical Committee ISOITC 48, Laboratory glassware and related apparatus, Subcommittee SC 2, General laboratory glassware (other than measuring apparatus). This second edition cancels and replaces the first edition (IS0 4142:199
23、7) 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. iii EN IS0 4142:2002 Laboratory glassware - Test tubes 1 Scope
24、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 III respectively. 2 Normative references The following normative documents contain provisions whic
25、h, 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, parties to agreements based on this International Standard are encouraged to investigate the poss
26、ibility 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 IS0 and IEC maintain registers of currently valid International Standards. IS0 695, Glass - Resistance to atta
27、ck by a boiling aqueous solution of mixed alkali - Method of test and classification IS0 71 9, Glass - Hydrolytic resistance of glass grains at 98 “C - Method of test and classification IS0 1776:1985, Glass - Resistance to attack by hydrochloric acid at 100 “C - Flame emission or flame atomic absorp
28、tion spectrometric method IS0 3585, Borosilicate glass 3.3 - Properties IS0 4803, Laboratory glassware - Borosilicate glass tubing 3 Classification and designation The following three types of test tubes are specified. - Type I test tubes (borosilicate glass) are suitable for most usual laboratory a
29、pplications. 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 applications, and will withstand moderate warming, e. g. in a water bath, andlor mod
30、erate 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 which are susceptible to pH changes. - Type 111 test tubes (soda/lime gla
31、ss) are suitable for general mixing and simple laboratory work, and will withstand moderate warming, e. g. in a water bath, andlor moderate temperature change. They should not be placed into naked flames. Their chemical resistance is limited. These type numbers are specific to this International Sta
32、ndard 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 IS0 4142, together with the type designation, the nominal size and the wall thickness of the
33、 test tube. 1 EN IS0 4142:2002 Property Water resistance Acid resistance Alkali resistance EXAMPLE For a test tube Type I with a nominal size of 10 mm x 75 mm and a medium wall thickness of 1,0 mrn, the designation would be as follows: Test tube IS0 4142-10x75-M Minimum requirement Type I Type II Ty
34、pe 111 Class HGB 1 Class HGB 1 Class HGB 3 6 100 bg NazOa 6 100 pg NazOa - Class A2 Class A2 Class A2 4 Material 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 or a fire-polished end. 5.2 Dimensions sha
35、ll 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 67 % and no more than 167 % of the nominal side wall thickness. 6 Marking 6.1 Each Type I test tu
36、be shall be marked to clearly indicate that it is manufactured from borosilicate glass with a coefficient of thermal expansion of 3,3 x 1OP6K-, 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 III test tubes, the app
37、ropriate information may be on the packaging only. 2 EN IS0 4142:2002 Nominal size Length External diameter I2 f 0,5 Table 2 - Type I test tubes, made from borosilicate glass 3.3 Dimensions in millimetres Wall thickness Medium Heavy 10 x 75 75 10 f 0,15 1 ,O f 0,04 12 x 75 75 12 I 0,2 1 ,O f 0,04 16
38、 X 125 125 16 f 0,2 1,2 f 0,05 18 X 150 150 18 f 0,2 1,2 f 0,05 20 X 150 150 20 f 0,25 1,2 f 0,05 24 X 150 150 24 f 0,25 1,2 I 0,05 1,5 f 0,l 13 f 0,l 1,8 f 0,l 1,8 f 0,l 1,8 f 0,l 1,8 z!z 0,l 10 x 100 1 O0 10 f 0,15 1 ,O f 0,04 12 x 100 1 O0 12 f 0,2 1 ,O f 0,04 13 X 100 1 O0 13 f 0,2 1 ,O f 0,04 1
39、6 X 100 1 O0 16 f 0,2 1,2 f 0,05 16 X 150 150 16 f 0,2 1,2 f 0,05 16 X 160 160 16 f 0,2 1,2 f 0,05 18 X 180 180 18 f 0,2 1,2 0,05 20 X 180 180 20 f 0,25 1,2 f 0,05 24 X 200 200 24 f 0,25 1.2 f 0,05 1 ,O I 0,04 1 ,O f 0,04 1 ,O f 0,04 1,2 f 0,04 1,2 f 0,04 1,2 f 0,04 1,2 f 0,04 1,2 f 0,05 1,2 f 0,05
40、1,5 f 0,l 1,5 k 0,l 1,5 f- 0,l - 1,8 z!z 0,l - - 1,8 f 0,l 1,8 f 0,l 3 Nominal size Length 52 External diameter Wall thickness f 0,5 10 x 75 75 12 x 75 75 16 x 125 125 18 x 150 150 20 X 150 150 24 X 150 150 10 1 ,O f 0,04 12 1 ,O f 0,04 16 1,2 f 0,04 18 1,2 f 0,04 20 1,2 f 0,05 24 1,2 f 0,051 10 x 1
41、00 100 12 x 100 100 13 x 100 1 O0 16 x 100 1 O0 16 x 150 150 16 x 160 160 18 x 180 180 20 x 180 180 24 X 200 200 10 12 13 16 16 16 18 20 24 EN IS0 4142:2002 Nominal size Length Light wall f2 External diameter Wall thickness Medium wall External diameter Wall thickness 10 x 100 12 x 100 13 x 100 16 x
42、 100 16 x 150 16 X 160 20 x 180 24 x 200 I Or 0,8 f 0.05. 10 x 75 75 10 f 0,2 0,6 f 0,04 10 f 0,25 12 x 75 75 12 f 0,2 0,6 f 0,04 12 f 0,25 16 X 125 125 16 f 0,2 0,6 f 0,04 16 f 0,25 18 X 150 150 18 f 0,2 0,6 f 0,04 18 f 0,25 20 X 150 150 20 f 0,3 0,8 f. 0,05 20 f 0,5 24 X 150 150 24 f 0,3 0,8 f 0,0
43、51 24 f 0,5 1 O0 1 O0 1 O0 1 O0 150 160 180 200 1 ,O f 0,05 1 ,O f 0,05 1 ,O f 0,05 1 ,O f 0,051 1,2 f 0,05 1,2 f 0,05 10 it 0,2 12 f 0,2 13 f 0,2 16 f0,2 16 f 0,2 16 f 0,2 20 f 0,3 24 f 0,3 0,6 f 0,04 0,6 f 0,04 0,6 f 0,04 0,6 f 0,04a 0,6 f 0,04 0,6 f 0,04a 0,8 f 0,05 0,8 f 0,05 10 f 0,25 12 f 0,25
44、 13 f 0,25 16 f 0,25 16 f 0,25 16 f 0,25 20 f 0,5 24 f 0,5 1 ,O f 0,05 1 ,O f 0,051 1 ,O & 0,05 1 ,O f 0,05 1 ,O f 0,05 1 ,O f 0,05 1,2 f 0,05 1,2 f 0,05 4 BS EN IS0 4142:2002 BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution BSI is the independent national body responsibl
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