BS EN ISO 4796-2-2001 Laboratory glassware Bottles Conical neck bottles《实验室玻璃器皿 瓶 锥形颈瓶》.pdf

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 4796-2:2001 Inc

2、orporating Corrigendum No. 1 The European Standard EN ISO 4796-2:2000 has the status of a British Standard ICS 71.040.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Laboratory glassware Bottles Part 2: Conical neck bottlesThis British Standard, having been prepared under t

3、he direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 April 2001 BSI 5 October 2001 ISBN 0 580 34836 9 BS EN ISO 4796-2:2001 Amendments issued since publication Amd. No. Date Comments 13418 Corrigend

4、um No. 1 5 October 2001 Incorporating annex ZA. National foreword This British Standard is the official English language version of EN ISO 4796-2:2000. It is identical with ISO 4796-2:2000. Together with BS EN ISO 4796-1:2001, it supersedes BS 5928:1980 which is withdrawn. The UK participation in it

5、s preparation was entrusted by Technical Committee LBI/36, Laboratory glassware and related apparatus, to Subcommittee LBI/36/2, General laboratory glass and plastics ware, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European commit

6、tee 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. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-ref

7、erences Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be fou

8、nd in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standard

9、s are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. 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 page, pages ii

10、and iii, a blank page, pages 1 to 4, the annex ZA page and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO47962 April2000 ICS71.040.20 Englishversion LaboratoryglasswareBottlesPart2:Con

11、icalneckbottles (ISO47962:2000) VerreriedelaboratoireFlaconsPartie2:Flaconscol conique(ISO47962:2000) LaborgerteausGlasFlaschenTeil2:Flaschenmit konischemHals(ISO47962:2000) ThisEuropeanStandardwasapprovedbyCENon1April2000. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulat

12、etheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,Ge

13、rman).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Irelan

14、d,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2000CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwidef

15、orCENnationalMembers. Ref.No.ENISO47962:2000EgaPe2 INESO7469:20020 Foreword Corrected20010328 ThetextoftheInternationalStandardISO47962:2000hasbeenpreparedbyTechnical CommitteeISO/TC48“Laboratoryglasswareandrelatedapparatus“incollaborationwith TechnicalCommitteeCEN/TC332“Laboratoryequipment“,thesecr

16、etariatofwhichisheldby DIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublication ofanidenticaltextorbyendorsement,atthelatestbyOctober2000,andconflictingnational standardsshallbewithdrawnatthelatestbyOctober2000. AccordingtotheCEN/CENELECInternalRegulations,thenationalsta

17、ndardsorganizationsof thefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium, CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy, Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnited Kingdom. Endorsementnotice ThetextoftheInternatio

18、nalStandardISO47962:2000wasapprovedbyCENasaEuropean Standardwithoutanymodification. NOTE:NormativereferencestoInternationalStandardsarelistedinannexZA(normative). ENISO47962:2000 Reference number ISO 4796-2:2000(E) INTERNATIONAL STANDARD ISO 4796-2 First edition 2000-04-01 Laboratory glassware Bottl

19、es Part 2: Conical neck bottles Verrerie de laboratoire Flacons Partie 2: Flacons col conique ENISO47962:2000 ii ENISO47962:2000 ISO -69742:(0002)E iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The wo

20、rk 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 established has the right to be represented on that committee. International organizations, governmental and non-governm

21、ental, 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draf

22、t 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 the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part

23、of ISO 4796 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 4796-2 was prepared by Technical Committee ISO/TC 48, Laboratory glassware and related apparatus, Subcommittee SC 2, General laboratory glasswa

24、re (other than measuring apparatus). Parts 1 and 2 of ISO 4796 cancel and replace ISO 4796:1977 by incorporating the following changes: a) bottles with capacities of 25 ml, 30 ml, 2 500 ml and 20 000 ml have been added; b) the material has been more precisely defined; c) the International Standard h

25、as been divided into three parts. ISO 4796 consists of the following parts, under the general title Laboratory glassware Bottles: Part 1: Screw-neck bottles Part 2: Conical neck bottles Part 3: Aspirator bottles ENISO47962:2000 ENISO47962:2000 INTENRATIONAL TSANDADR ISO -69742:(0002)E 1 Laboratory g

26、lassware Bottles Part 2: Conical neck bottles 1 Scope This part of ISO 4796 specifies a series of bottles with a conical, wide or narrow neck with or without ground joints, suitable for the storage of liquid and solid chemicals and reagents in general laboratory use. 2 Normative references The follo

27、wing normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 4796. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 4796 ar

28、e 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 registers of currently valid International Standards.

29、 ISO 383:1976, Laboratory glassware Interchangeable conical ground joints. ISO 719:1985, Glass Hydrolytic resistance of glass grains at 98 C Method of test and classification. ISO 3585:1998, Borosilicate glass 3.3 Properties. ISO 4796-1:2000, Laboratory glassware Bottles Part 1: Screw-neck bottles.

30、3 Types and capacities 3.1 There are four types of conical neck bottles specified in this part of ISO 4796: type WS: wide-necked bottles with a conical socket; type WJ: wide-necked bottles with an interchangeable conical ground joint; type NS: narrow-necked bottles with a conical socket; type NJ: na

31、rrow-necked bottles with an interchangeable conical ground joint. 3.2 The nominal capacities of conical neck bottles shall be chosen from the following series: wide-necked bottles: 50 ml 100 ml 250 ml 500 ml 1 000 ml and 2 000 ml; narrow-necked bottles: 25 ml 30 ml 50 ml 100 ml 250 ml 500 ml 1 000 m

32、l 2 000 ml 2 500 ml 5 000 ml 10 000 ml and 20 000 ml. ENISO47962:2000 ISO -69742:(0002)E 2 3.3 The nominal capacity of a bottle indicates the quantity of liquid which a bottle of average wall thickness shall contain when the bottle is filled to the turn of the shoulder. 3.4 The design of the bottle

33、shall be such that the total capacity to the base of the neck shall be approximately 15 % greater than that to the shoulder. 4 Dimensions The dimensions and tolerances of conical neck bottles are given in Figures 1 and 2 and in Table 1. Table 1 Dimensions Nominal capacity Total height h Outside diam

34、eter d Wall thickness s Recommended socket/ground joint a ml mm approx. mm approx. mm min. wide neck narrow neck 25 64 36 1,0 12/21 30 78 36 1,0 16/16 50 78 42 1,0 24/20 14/15 100 95 52 1,2 29/22 14/15 or 14/23 250 128 70 1,3 34/35 19/22 or 19/26 500 162 86 1,3 45/40 24/29 1 000 198 107 1,7 60/46 29

35、/32 2 000 246 133 2,0 60/46 29/32 2 500 295 140 2,0 24/20 5 000 318 181 2,0 45/40 10 000 398 227 2,7 60/46 20 000 492 288 3,0 60/46 a In accordance with ISO 383 (see 5.2.8 for details) 5 Construction 5.1 Material 5.1.1 Bottles with conical necks shall be constructed of clear, colourless or amber bor

36、osilicate glass 3.3 in accordance with ISO 3585 or from other glass types, complying with the requirements of class HGB 3 or better specified in ISO 719. 5.1.2 Internal stress and visible defects in the glass (such as bubbles near the surface) shall be reduced to a level sufficient to minimize the p

37、ossibility of fracture due to thermal or mechanical shock. 5.2 Design 5.2.1 The base of the bottle shall be constructed so as to enable the bottle to stand firmly on a flat surface without rocking or spinning. ENISO47962:2000 ISO -69742:(0002)E 3 Key 1 Taper 1:10 2 Taper 1:30 Key 1 Taper 1:10 2 Tape

38、r 1:30 Figure 1 Wide-necked bottle Figure 2 Narrow-necked bottle 5.2.2 The base of the bottle shall have a suitable radius so as to provide a smooth transition between the base and the side. The main portion of the side shall be slightly tapered with the smaller diameter at the base of the bottle. T

39、he diameters d and the heights h shall be as given in Table 1. 5.2.3 The shoulder of the bottle shall have a suitable radius in order to provide a smooth transition between the side and the conical upper proportion of the bottle. 5.2.4 The upper portion of the shoulder shall be of conical shape. The

40、 transition radius from the upper portion of the shoulder to the neck shall be as small as possible to be compatible with good manufacturing practice. 5.2.5 The bottle shall be blown so as to evenly distribute the glass in the mould avoiding sudden changes in the wall thickness. The thinnest areas s

41、hall not have a thickness less than the minimum values specified in Table 1. ENISO47962:2000 ISO -69742:(0002)E 4 5.2.6 The neck of the bottle shall be stoutly constructed and finished with a strengthening lip designed to facilitate pouring without liquid running down the outside of the bottle. 5.2.

42、7 The outer glass surface of the bottles may be coated with a suitable plastics material as a protection and to limit leakage of liquid if the bottle is damaged. The coating shall be resistant to steam sterilization at 135 C. 5.2.8 The internal surface of the conical neck socket shall be smooth, sui

43、table to fit with a rubber stopper, or shall be finished by fine grinding. If the surface is finished, the grinding shall comply with the interchangeable conical ground joints specified in ISO 383 and with the dimensions specified in Table 1 of this part of ISO 4796. If the socket surface is smooth,

44、 the socket dimensions shall be suited for finishing by fine grinding so as to fit an interchangeable conical ground joint specified in Table 1. 5.3 Stoppers 5.3.1 Bottles shall be provided with stoppers of glass, rubber or of a suitable inert plastics material. 5.3.2 Glass stoppers shall be made of

45、 glass of a similar coefficient of thermal expansion to that of the bottle. The glass stoppers shall be ground to a joint complying with the requirements of ISO 383 and they shall comply with the sizes given in Table 1. 5.3.3 Rubber stoppers shall be dimensioned to fit with the conical smooth socket

46、 of the bottle neck, given in Table 1. 5.3.4 Plastics stoppers shall be made from a suitable inert material, for example polypropylene or polyethylene, and shall be moulded to fit with the interchangeable conical ground joint of the bottle neck. 5.3.5 Glass or plastic stoppers should have a flat top

47、 with a grip, larger than the diameter of the lip of the neck with which they are intended to be used. The grip shall facilitate removal of the stopper from the neck of the bottle, for example by being of a hexagonal or similar shape. 6 Designation If a designation of bottles is required, this shall

48、 be by reference to this part of ISO 4796, i.e. ISO 4796-2, together with the nominal capacity and the type specified in 3.1. EXAMPLE For a bottle with a nominal capacity of 100 ml and of type WS (wide-necked bottle with a conical socket), the designation would be as follows: Laboratory bottle ISO 4796-2 - 100 WS 7 Marking In accordance with ISO 4796-1:2000. ENISO47962:2000 gaPe3