1、BSI Standards PublicationBS EN ISO 4797:2015Laboratory glassware Boiling flasks with conicalground jointsBS EN ISO 4797:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 4797:2015.It supersedes BS EN ISO 4797:2004 which is withdrawn.The UK participation i
2、n its preparation was entrusted to TechnicalCommittee LBI/1/2, Laboratory Equipment.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its c
3、orrectapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 83098 3ICS 71.040.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strat
4、egy Committee on 31 January 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4797 December 2015 ICS 71.040.20 Supersedes EN ISO 4797:2004English Version Laboratory glassware - Boiling flasks with conical ground jo
5、ints (ISO 4797:2015) Verrerie de laboratoire - Fioles coniques et ballons joint conique rod (ISO 4797:2015) Laborgerte aus Glas - Erlenmeyer-, Rund- und Stehkolben mit Kegelschliff (ISO 4797:2015) This European Standard was approved by CEN on 13 December 2015. CEN members are bound to comply with th
6、e CEN/CENELEC 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 obtained on application to the CEN-CENELEC Managemen
7、t Centre or to any CEN member. This European Standard exists in three official 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 CEN-CENELEC Management Centre has the same status
8、as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, N
9、etherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All
10、rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 4797:2015 EBS EN ISO 4797:2015EN ISO 4797:2015 (E) 3 European foreword This document (EN ISO 4797:2015) has been prepared by Technical Committee ISO/TC 48 “Laboratory equipment“ in collab
11、oration with Technical Committee CEN/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 publication of an identical text or by endorsement, at the latest by June 2016, and conflicting national stan
12、dards shall be withdrawn at the latest by June 2016. Attention is drawn to the possibility that 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. This document supersedes EN ISO 4
13、797:2004. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, F
14、rance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 4797:2015 has been approved by CEN as EN I
15、SO 4797:2015 without any modification. BS EN ISO 4797:2015ISO 4797:2015(E)Foreword iv1 Scope . 12 Normative references 13 Types . 14 Series of capacities . 15 Material 16 Dimensions . 17 Ground glass joints . 28 Thermal shock endurance 29 Marking 2 ISO 2015 All rights reserved iiiContents PageBS EN
16、ISO 4797:2015ISO 4797:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body intereste
17、d 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. ISO collaborates closely with the International Electrotechnical Com
18、mission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents
19、should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for
20、 identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the co
21、nvenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Forewo
22、rd - Supplementary information.The committee responsible for this document is ISO/TC 48, Laboratory equipment in collaboration with CEN/TC 332, Laboratory equipment.This third edition cancels and replaces the second edition (ISO 4797:2004), which has been technically revised to include the following
23、 changes: round-bottom flasks with nominal volumes of 3 l, 5 l, and 20 l have been added; overall heights of some round-bottom flasks of Series 1 (Table 3) have been modified; requirements for thermal shock endurance have been added.iv ISO 2015 All rights reservedBS EN ISO 4797:2015INTERNATIONAL STA
24、NDARD ISO 4797:2015(E)Laboratory glassware Boiling flasks with conical ground joints1 ScopeThis International Standard specifies requirements for an internationally acceptable series of boiling flasks with conical ground joints for general laboratory purposes.2 Normative referencesThe following docu
25、ments, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 383, Laboratory glassw
26、are Interchangeable conical ground jointsISO 718, Laboratory glassware Thermal shock and thermal shock endurance Test methodsISO 1773, Laboratory glassware Narrow-necked boiling flasksISO 3585, Borosilicate glass 3.3 Properties3 TypesThe following three types of boiling flasks with conical ground jo
27、ints are specified:a) conical flasks;b) flat-bottom flasks;c) round-bottom flasks.4 Series of capacitiesTwo series are specified for each type of boiling flask with conical ground joints. The series differ in height and in selection of joint sizes. It is recommended that, in national standards, one
28、of these series is chosen.5 MaterialBoiling flasks shall be made from borosilicate glass 3.3 in accordance with ISO 3585, and shall be free from visible defects which might affect performance and free from any internal stress which would impair the performance of the flask.6 DimensionsThe external d
29、iameter of body of round-bottom flasks and flat-bottom flasks, the external diameter of body at the widest point of conical flasks and the minimum wall thickness shall comply with the dimensions specified in ISO 1773.The nominal overall height of the boiling flasks with conical ground joints shall b
30、e as specified in Table 1, Table 2 and Table 3. ISO 2015 All rights reserved 1BS EN ISO 4797:2015ISO 4797:2015(E)7 Ground glass jointsThe sizes of the conical joints fitted to the boiling flasks shall be as given in Table 1, Table 2 and Table 3. The joints shall comply with the requirements of ISO 3
31、83, k6 series.8 Thermal shock enduranceBoiling flasks with a nominal volume 3 000 ml shall have a thermal shock endurance of 150 C and boiling flasks with a nominal volume 3 000 ml shall have a thermal shock endurance of 100 C when tested in accordance with ISO 718.9 MarkingThe following inscription
32、s shall be permanently and legibly marked on all laboratory boiling flasks with conical ground joints:a) nominal volume of the boiling flask, for example “100 ml”;b) size of the conical ground joint, for example “29/32”;c) manufacturers and/or vendors name and/or mark;d) area with a surface suitable
33、 for marking with a pencil.It is recommended that reference be made on each flask to this International Standard, for example by the inscription “ISO 4797”.Table 1 Overall height and joint sizes for conical flasksNominal volumemlSeries 1 Series 2Overall height mmJoint sizes Nominal overall height mm
34、Joint sizes10 60 3 14/23 25 70 314/23 19/267014/23 19/2650 85 6 85100100 614/23 19/26 24/29 29/3210514/23 19/26 24/29 29/32250 140 619/26 24/29 29/32135 19/26 24/29 29/32 34/35500175 6 1701 000 220 7 24/29 29/32 34/35210 24/29 29/32 34/352 000270 7 2753 000 31034/35 45/405 000 3652 ISO 2015 All righ
35、ts reservedBS EN ISO 4797:2015ISO 4797:2015(E)Table 2 Overall height and joint sizes for flat-bottom flasksNominal volumemlSeries 1 Series 2Overall heightmmJoint sizes Nominal overall heightmmJoint sizes50 85 319/26 29/328519/26 24/29100 103 6 100 19/26 24/29 29/32 34/35250 130 6 125500 160 629/3214
36、524/29 29/32 34/351 000 187 6 1752 000 230 6 2104 000 255 45/40Table 3 Overall height and joint sizes for round-bottom flasksNominal volumemlSeries 1 Series 2Overall heightmmJoint sizes Nominal overall heightmmJoint sizes10 70 314/23 25 85 350 90 614/23 19/26 24/29 29/3290 14/23 19/26 29/32 24/29 34
37、/35100 105 6 110250 138 619/26 24/29 29/3213519/26 24/29 29/32 34/35500 163 624/29 29/32155 19/26 24/29 29/32 34/35 45/401 000 200 7 1852 000 240 7 2203 000 275 724/29 29/32 34/35 45/40 55/44 4 000 295 729/32 45/4027034/35 45/405 000 300 724/29 29/32 34/35 45/40 55/4427529/32 34/35 45/406 000 358 7
38、45/40 325 45/4010 000 380 7 45/40 35034/35 45/4020 000 435 10 55/44 ISO 2015 All rights reserved 3This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.
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