1、Borosilicate glass 3.3 Properties (IS0 3585 : 1998) ICs 81.040.1 O Borosilicatglas 3.3 - Eigenschaften (IS0 3585 : 1998) DIN - IS0 3585 Supersedes December 1993 edition. This standard incorporates International Standard IS0 3585 Borosilicate glass 3.3 - Properties. A comma is used as the decimal mar
2、ker. National foreword This standard has been prepared by ISO/TC 48. The responsible German body involved in its preparation was the Normenausschu Materialprfung (Mate- rials Testing Standards Committee), Technical Committee Chemische Besfandigkeifsprfverfahren fr Glas. The DIN Standards correspondi
3、ng to the International Standards referred to in clause 2 and Annex A of the IS0 Standard are as follows: IS0 Standard DIN Standard IS0 695 DIN IS0 695 IS0 719 DIN IS0 719 IS0 720 DIN IS0 720 IS0 1776 DIN IS0 1776 IS0 3586 DIN IS0 3586 IS0 3587 DIN IS0 3587 IS0 4704 DIN IS0 4704 IS0 7884-1 DIN IS0 7
4、884-1 IS0 7884-2 DIN IS0 7884-2 IS0 7884-3 DIN IS0 7884-3 IS0 7884-4 DIN IS0 7884-4 IS0 7884-8 DIN IS0 7884-8 IS0 7991 DIN IS0 7991 Amendments This standard differs from the December 1993 edition in that the viscosity/temperature behaviour is now dealt with in one subclause, i.e. subclause 5.5 (prev
5、iously in subclauses 5.5 to 5.8). Previous editions DIN IS0 3585: 1976-07, 1993-1 2. IS0 Standard comprises 6 pages. 1 No pari of this standard may be reproduced without the prior permission of Ref. No. DIN IS0 3585 : 1999-1 O )IN Deutsches Institut fr Normung e. V., Berlin. leuth Verlag GmbH, D-i07
6、72 Berlin, has the exclusive right of sale for German Standards (DIN-Normen). English price group 06 Sales No. 0406 03.00 Page 1 IS0 3585 : 1998 Borosilicate glass 3.3 Properties Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies
7、(IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 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, g
8、overnmental and non- governmental, in liaison with ISO, also take pari in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated t
9、o the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 3585 was prepared by Technical Committee ISO/TC 48, Laboratory glassware and related apparatus, Subcommittee 5, Quality of glass
10、ware. This third edition cancels and replaces the second edition (IS0 3585:1991), which has been technically revised. Annex A of this International Standard is for information only. Page 2 IS0 3585 : 1998 Introduction It is the purpose of this International Standard to define and facilitate the iden
11、tification of a type of glass appropriate for laboratory glassware, glass plant, pipeline and fittings. The design of glass components is dependent on the coefficient of mean linear thermal expansion and the ultimate tensile strength. Utilization requires not only a product design which is satisfact
12、ory within temperature and pressure limitations, but one which will also satisfy certain criteria for chemical resistance. Therefore, the glass, as distinct from the components made from it, shall satisfy certain specified requirements. However, it is accepted that methods of working the glass to ac
13、hieve the various forms required in practice can affect the properties of the glass. The glass used for this application, referred to as “borosilicate glass 3.3, is resistant to both heat and chemicals. Its heat resistance characteristics are defined by the nominal values given for physical properti
14、es. Its chemical resistance characteristics are specified within stated limits, using standard test methods to which reference is made in this International Standard. The glass is deemed to be satisfactory for the construction of laboratory glassware, glass plant, pipeline and fittings, while for th
15、e glass components themselves, other relevant International Standards should be consulted. Where nominal properties are given, they relate, unless otherwise specified, to the range of temperatures of 20 “C to 300 OC. However, this does not imply that products manufactured from this glass can necessa
16、rily be used freely within this range, nor that they cannot be used outside this range. Page 3 IS0 3585 : 1998 1 Scope This International Standard specifies the characteristics of a type of glass designated “borosilicate glass 3.3“ used for the construction of laboratory glassware, glass plant, pipe
17、line and fittings. NOTE - Annex A lists related International Standards. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All s
18、tandards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards.
19、IS0 695:1991, Glass - Resistance to attack by a boiling aqueous solution of mixed alkali - Method of test and classification. IS0 71 9:1985, Glass - Hydrolytic resistance of glass grains at 98 “C - Method of test and classification. IS0 720:1985, Glass - Hydrolytic resistance of glass grains at 121
20、OC - Method of test and classification. IS0 1776:1985, Glass - Resistance to attack by hydrochloric acid at 100 “C - Flame emission or flame atomic absorption spectrometric method. IS0 7884-2:1987, Glass - Viscosity and viscometric fixed points - Part 2: Determination of viscosity by rotation viscom
21、eters. IS0 7884-3: 1987, Glass - Viscosity and viscometric fixed points - Part 3: Determination of viscosity by fibre elongation viscometer. IS0 7884-4:1987, Glass - Viscosity and viscometric fixed points - Part 4: Determination of viscosity by beam bending. IS0 7884-8:1987, Glass -Viscosity and vis
22、cometric fixed points - Pari 8: Determination of (dilatometric) transformation temperature. IS0 7991 :1987, Glass - Determination of coefficient of mean linear thermal expansion. 3 General requirements The glass shall be annealed to commercially acceptable quality and shall be homogeneous enough to
23、be free from larger inclusions which can affect the mechanical strength (i.e. refractory inclusions). Page 4 IS0 3585 : 1998 4 Chemical resistance 4.1 Hydrolytic resistance at 98 OC Hydrolytic resistance shall conform to grain class IS0 719-HGB 1. For test method see IS0 71 9. 4.2 Hydrolytic resista
24、nce at 121 OC Hydrolytic resistance shall conform to grain class IS0 720-HGA 1. For test method see IS0 720. 4.3 Acid resistance Acid resistance shall be equivalent to a mass of sodium oxide (Na,O) s 100 pg per 1 dm2 of glass when the glass “as a material” is tested (including preliminary acid treat
25、ment). For test method see IS0 1776 4.4 Resistance to attack by a boiling aqueous solution of mixed alkali Alkali resistance shall conform to class IS0 695-A2 or better. For test method see IS0 695. 5 Physical properties NOTE - Property values without limiting deviations (see 5.3, 5.4 and 5.10 to 5.
26、12) are given for guidance only. They do not specify borosilicate glass 3.3. Therefore, no test method is stated. 5.1 Coefficient of mean linear thermal expansion, a ct (20 OC; 300 OC) shall be equal to (3,3 I0,l) x 10-6 K-1. For test method see IS0 7991 (reference method). 5.2 Density at 20 OC, p p
27、 shall be equal to 2,23 g.cm4 k 0,02 gcm-3. 5.3 Mean thermal conductivity (20 OC to 200 OC), A A shall be equal to 1,2 W(m-1.K-I). 5.4 Mean specific heat capacity at constant pressure (20 OC to 100 OC), Cl, cp shall be equal to 0,8 x IO3 J(kg-1.K-1). Page 5 IS0 3585 : 1998 5.5 Viscocity/temperature
28、behaviour The viscosity, q, and its relationship to temperature, T, is characterized by the following (equilibrium) viscosity/temperature points: q1 = lo4 dPa.s at a temperature of TI = (1 260 120) OC; q2 = IO7,6 dPa,s at a temperature of T2 = (825 1: 10) OC; q3 = 1013 dPa.s at a temperature of T3 =
29、 (560 tr 1 O) OC. Measuring methods shall be as follows: rotation viscometer, see IS0 7884-2; fibre elongation viscometer, see IS0 7884-3; beam bending viscometer, see IS0 7884-4. NOTE - The measurement data of three equilibrium viscosities allow calculation of the viscosiy/temperature relationship
30、by the VFT equation see equation (2) of IS0 7884-1:1987 for interpolations. The temperature T, T2 and T, more or less correspond to the working point, softening point and annealing point, respectively (see IS0 7884-l), although at least the latter two do not characterize well-defined equilibrium vis
31、cosities and do not fit into a VFT curve. 5.6 Transformation temperature, fg tg shall be equal to 525 “C I 15 OC. For test method see IS0 7884-8 (reference method). 5.7 Modulus of elasticity, E E shall be equal to 64 kN.mm-2 (= 64 x 103 MPa). 5.8 Poissons ratio, ,u p shall be equal to 0,20. 5.9 Ulti
32、mate tensile strength, Rm R, shall be equal to 35 N.mm-2 to 100 N.mm-2 (= 35 MPa to 100 MPa). The wide range of ultimate tensile strength given indicates the wide scatter of test results obtainable with normal commercial glass to which this specification relates, when smooth, pressed, drawn or fire-
33、polished test specimens are used. Surface damage will reduce the failure stresses. The figures given are not intended as a guide to design st resses. Page 6 IS0 3585 : 1998 Annex A (inform at ive) Bibliography 1 IS0 3586: 1 976, Glass plant, pipeline and fittings - General rules for testing, handlin
34、g and use. 2 IS0 3587:1976, Glass plant, pipeline and fittings - Pipeline and fittings of nominal bore 15 to 150 mm - Compatibility and interchangeability. 3 IS0 381 9:1985, Laboratory glassware - Beakers. 4 IS0 4704:1977, Glass plant, pipeline and fittings - Glass plant components. 5 IS0 4797: 1981, L aboratory glassware - Flasks with conical ground joints. 6 IS0 4803: 1 978, Laboratory glassware - Borosilicate glass tubing. 7 IS0 7884-1:1987, Glass - Viscosity and viscometric fixed points - Part 1: Principles for determining viscosity and viscometric fixed points.
