1、BSI Standards PublicationBS EN ISO 16496:2016Laboratory glassware Vacuum-jacketed vesselsfor heat insulation (ISO16496:2016)BS EN ISO 16496:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO16496:2016.The UK participation in its preparation was entrusted t
2、o 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 correctapplication. The British St
3、andards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 83099 0ICS 71.040.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 29 February 2016
4、.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORMEN ISO 16496 February 2016 ICS 71.040.20 English Version Laboratory glassware - Vacuum-jacketed vessels for heat insulation (ISO 16496:2016) Verrerie de laboratoire - Rcipients double enveloppe vid
5、e pour isolation thermique (ISO 16496:2016) Laborgerte aus Glas - Gerte mit Vakuummantelisolierung (ISO 16496:2016) This European Standard was approved by CEN on 19 December 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
6、 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 Management Centre or to any CEN member. This European Standard exists in three official ve
7、rsions (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 as the official versions. CEN members are the national standards bodies of Austri
8、a, 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, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,
9、 Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN n
10、ational Members. Ref. No. EN ISO 16496:2016 EBS EN ISO 16496:2016EN ISO 16496:2016 (E) 3 European foreword This document (EN ISO 16496:2016) has been prepared by Technical Committee ISO/TC 48 “Laboratory equipment“ in collaboration with Technical Committee CEN/TC 332 “Laboratory equipment” the secre
11、tariat 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 August 2016, and conflicting national standards shall be withdrawn at the latest by August 2016. Attention is drawn
12、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. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
13、countries are bound to implement this European Standard: 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, Netherlands, Norway
14、, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 16496:2016 has been approved by CEN as EN ISO 16496:2016 without any modification. BS EN ISO 16496:2016ISO 16496:2016(E)Foreword iv1 Scope . 12 Normative ref
15、erences 13 Terms and definitions . 14 Dimensions . 24.1 Dewar flasks 24.2 Reaction vessels . 64.3 Columns 65 Materials . 86 Construction 97 Safety requirements and testing 97.1 General . 97.2 Dewar flasks 97.3 Reaction vessels 107.4 Columns . 108 Use of vacuum vessels 108.1 Safety instructions 108.2
16、 Functional requirements . 109 User information .1110 Marking .1110.1 Dewar flasks . 1110.2 Reaction vessels and columns 11Annex A (normative) Testing glass for residual strain (bifilar method) .13Bibliography .14 ISO 2016 All rights reserved iiiContents PageBS EN ISO 16496:2016ISO 16496:2016(E)Fore
17、wordISO (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 interested in a subject for which a techni
18、cal 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 Commission (IEC) on all matters of e
19、lectrotechnical 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 should be noted. This document wa
20、s 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 identifying any or all such pate
21、nt 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 convenience of users and does not c
22、onstitute 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: Foreword - Supplementary informationThe
23、 committee responsible for this document is ISO/TC 48, Laboratory equipment.iv ISO 2016 All rights reservedBS EN ISO 16496:2016INTERNATIONAL STANDARD ISO 16496:2016(E)Laboratory glassware Vacuum-jacketed vessels for heat insulation1 ScopeThis International Standard recommends dimensions and specifie
24、s requirements and test methods for laboratory glassware manufactured from borosilicate glass 3.3 and provided with a vacuum jacket for thermal insulation. It covers Dewar vessels, vacuum-jacketed reaction vessels and vacuum-jacketed columns intended for laboratory use and laboratory related applica
25、tions. Typical dimensions are given in Tables 1 to 5.This International Standard does not apply to large scale production equipment and equipment operated with pressures of more than 0,1 bar above atmospheric pressure.2 Normative referencesThe following documents, in whole or in part, are normativel
26、y 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 glassware Interchangeable conical ground jointsI
27、SO 641, Laboratory glassware Interchangeable spherical ground jointsISO 718, Laboratory glassware Thermal shock and thermal shock endurance Test methodsISO 3585, Borosilicate glass 3.3 PropertiesISO 4803, Laboratory glassware Borosilicate glass tubingISO 4790, Glass-to-glass sealings Determination o
28、f stresses3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1Dewar flaskglass vessel with vacuum jacket for thermal insulation, designed for keeping substances at a controlled temperature within a range from -200 C to +200 CNote 1 to entry: See 8.1
29、 for restrictions on the use of Dewar flasks.3.2cryo vesselvacuum jacketed vessel made of materials other than glass3.3columncylindrical vessel for the thermal separation of substances in a laboratory or pilot plant ISO 2016 All rights reserved 1BS EN ISO 16496:2016ISO 16496:2016(E)4 DimensionsThe d
30、esigns shown in Figures 1 to 5 are for illustrative purposes only. The dimensions given in Tables 1 to 5 are for guidance, other dimensions being permissible, provided the resulting capacities comply with the scope of this International Standard.4.1 Dewar flasksDewar flasks may have a cylindrical, s
31、pherical or dished shape, as shown exemplarily in Figures 1 to 3. Other flask designs are permitted, e.g. flasks with flat bottom or rolled-on or integral flange.Key1 soft rubber spacer2 protective housing3 Dewar flask4 plastic foam cushion5 glass body6 evacuated spaceFigure 1 Cylindrical Dewar flas
32、k2 ISO 2016 All rights reservedBS EN ISO 16496:2016ISO 16496:2016(E)Key1 soft rubber spacer2 protective housing3 Dewar flask4 plastic foam cushionFigure 2 Dished Dewar flask ISO 2016 All rights reserved 3BS EN ISO 16496:2016ISO 16496:2016(E)Key1 soft rubber spacer2 hard rubber spacer3 protective hou
33、sing4 Dewar flask5 plastic foam cushionFigure 3 Spherical Dewar flaskTable 1 Dimensions of cylindrical Dewar flasksDimensions in millimetresNominal capacityInternal diameterd1Internal heighth1Housing diameterOverall heightml Nominal sizeLimit devia-tionsNominal sizeLimit devia-tionsd2ah2a200 40 170
34、66 220500 57 210 82 265800 67 240 90 3001 000 77 235 106 3001 000 100 3 150 3 128 1901 500 90 245 125 3051 500 100 240 130 3002 000 90 340 125 3952 000 100 290 130 350aDimensions d2and h2are intended as guideline values.4 ISO 2016 All rights reservedBS EN ISO 16496:2016ISO 16496:2016(E)Nominal capac
35、ityInternal diameterd1Internal heighth1Housing diameterOverall heightml Nominal sizeLimit devia-tionsNominal sizeLimit devia-tionsd2ah2a2 000 13841704168 2202 500 110 290 140 3503 000 138 230 170 2854 000 138 310 170 3657 000 200 270 240 37510 000 200 5 360 5 240 46514 000 200 500 240 60021 000 250
36、480 295 58028 000 250 6 625 6 295 72040 000 290 650 340 745aDimensions d2and h2are intended as guideline values.Table 2 Dimensions of dished Dewar flasksDimensions in millimetresNominal capacitymlInternal diameterd1Internal heighth1Housing diameterd2Overall heighth2260 100 65 130 110390 110 70 138 1
37、15680 138 80 170 1251 280 170 110 215 1454 400 200 140 250 1908 300 250 170 300 220NOTE All dimensions are intended as guideline values.Table 3 Dimensions of spherical Dewar flasksDimensions in millimetresNominal capacitymlInternal neck diam-eterd12Internal heighth14Housing diameterd2aOverall height
38、h2a1 000 30 230 175 2953 000 60 305 225 3755 000 60 350 260 42510 000 65 380 330 475aDimensions d2and h2are intended as guideline values.Table 1 (continued) ISO 2016 All rights reserved 5BS EN ISO 16496:2016ISO 16496:2016(E)4.2 Reaction vesselsOptional features of reaction vessels include an outlet
39、stopcock at the vessels bottom, a heating/cooling jacket and a flat flange at the vessels top.Figure 4 Example for a reaction vessel with outlet stopcock, heating/cooling jacket and flat flange4.3 ColumnsColumns may be designed to be operated with or without an additional heating jacket. The design
40、of column inlet and outlet connections is at the manufacturers discretion (see 6.6).6 ISO 2016 All rights reservedBS EN ISO 16496:2016ISO 16496:2016(E)Figure 5 Column ISO 2016 All rights reserved 7BS EN ISO 16496:2016ISO 16496:2016(E)Table 4 Dimensions of reaction vesselsDimensions in millimetresNom
41、inal capacityNominal sizeInternal heightInstallation heightDiametersml DN h1+50h25d1ad2ad3a100 60 115 160 70 100 130250 60 170 215 70 100 130500 60 260 305 700 100 130250 100 130 170 105 125 150500 100 160 200 105 125 1501 000 100 225 265 105 125 1501 000 120 205 250 130 160 1902 000 120 295 340 130
42、 160 1902 000 150 235 280 160 190 2253 000 150 290 325 160 190 2255 000 150 405 450 160 190 22510 000 150 690 735 160 190 2255 000 200 290 350 215 250 3006 000 200 320 380 215 250 30010 000 200 445 505 215 250 300aTolerances on d1, d2and d3are as specified in ISO 4803 or in national standards. Alter
43、natively, commercial tubing made of borosilicate glass 3.3 may be used.Table 5 Dimensions of columnsDimensions in millimetresPacking heighth1Internal diameterd1300 30 to 85500 30 to 851 000 30 to 85NOTE The dimensions are intended as guideline values.5 MaterialsThe glass parts of vacuum-jacketed ves
44、sels shall be of borosilicate glass 3.3 as specified in ISO 3585, and shall be free of residual strain and defects likely to impair the vessels appearance, service life and strength.The protective housing of Dewar flasks shall be made of sheet metal, stainless steel sheet, aluminium or plastics.8 IS
45、O 2016 All rights reservedBS EN ISO 16496:2016ISO 16496:2016(E)6 Construction6.1 The glass used for the vessel and the glass-to-glass seals shall be free from residual strain likely to impair the strength of the vacuum jacket. Testing shall be performed by examination under polarized light.6.2 When
46、glass-to-glass seals include borosilicate glass 3.3 of different origins, e.g. where alterations are made to the vessels or in the case of repairs, any residual strain should be determined in accordance with ISO 4790 or as specified in Annex A.6.3 The vacuum jacket (i.e. all walls that enclose the v
47、acuum) shall have a minimum wall thickness conforming to that calculated in accordance with acknowledged methods given in expert literature. Some examples are listed in the Bibliography. The wall thickness specification does not apply to bellows-type expansion joints of columns. The actual wall thic
48、kness shall be determined using an ultrasonic method.6.4 The outer glass surface of vacuum-jacketed vessels may be coated with plastics for protection against mechanical damage during handling, transport and in the event of implosion.6.5 Reaction vessel ports and connections should preferably be equ
49、ipped with flat flanges in accordance with regional or national standards. Other ports and connections are acceptable. The design of connections to the heating or cooling jacket is at the manufacturers discretion.6.6 In the case of columns, the design of connections at the column inlets and outlets is at the manufacturers discretion. If conical or spherical ground joints are used, they shall conform to ISO 383 and ISO 641 or the respective national standards. Flat flanges
