1、December 2009DEUTSCHE NORM Normenausschuss Laborgerte und Laboreinrichtungen (FNLa) im DIN DIN-SprachendienstEnglish price group 5No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the
2、 exclusive right of sale for German Standards (DIN-Normen).ICS 71.040.20!$F“1913529www.din.deDDIN 12480Laboratory glassware Three-neck bottles Woulff bottles,English translation of DIN 12480:2009-12Laborgerte aus Glas Dreihalsflaschen Woulffsche Flaschen,Englische bersetzung von DIN 12480:2009-12Ver
3、rerie de laboratoire Flacons trois cols Flacons de Woulff,Traduction anglaise de DIN 12480:2009-12SupersedesDIN 12480:1978-01 andDIN 12481:1978-01www.beuth.deDocument comprises pages610.12 DIN 12480:2009-12 2 A comma is used as the decimal marker. Contents Page Foreword . 3 1 Scope . 4 2 Normative r
4、eferences . 4 3 Dimensions, designation . 4 4 Material 5 5 Design 6 6 Thermal shock endurance . 6 7 Marking 6 DIN 12480:2009-12 3 Foreword This standard has been prepared by Working Group NA 055-01-03 AA Glasgerte und Apparate (Glass devices and apparatus) of the Normenausschuss Laborgerte und Labor
5、einrichtungen (Laboratory Devices and Installations Standards Committee). Amendments This standard differs from DIN 12480:1978-01 and DIN 12481:1978-01 as follows: a) three-neck bottles with and without bottom outlet have been combined in one standard; b) the dimensions have been adapted to the stat
6、e of the technology; c) borosilicate glass 3.3 is now required as the material; d) testing of thermal shock resistance is now in accordance with DIN ISO 718; e) angled design of the neck has been included in the standard; f) the designation of the three-neck bottles has been changed. Previous editio
7、ns DIN 12480: 1965-12, 1978-01 DIN 12481: 1965-12, 1978-01 DIN 12480:2009-12 4 1 Scope This standard applies to three-neck bottles also called Woulff bottles made from borosilicate glass 3.3 without and with a bottom outlet. The standard specifies the dimensions, designation, material, design and ma
8、rking of these three-neck bottles for general laboratory purposes. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced docu
9、ment (including any amendments) applies. DIN 168-1, Knuckle threads Part 1: Especially for glass containers Thread sizes DIN 12242-1, Laboratory glassware Interchangeable conical ground joints Part 1: Dimensions, tolerances DIN 12245, Laboratory glassware Conical sockets, taper 1 : 10 blank or rough
10、ly ground Dimensions, tolerances DIN ISO 718, Laboratory glassware Thermal shock and thermal shock endurance Test methods DIN ISO 3585, Borosilicate glass 3.3 Properties 3 Dimensions, designation Three-neck bottles shall comply with form G (with round thread), form K (with conical socket) or form S
11、(with conical ground socket) in accordance with Figure 1 and shall be of dimensions in accordance with Table 1. The necks may be in vertical position (V, see Figure 1) or angled (W, see Figure 2). Figure 1 Three-neck bottles without and with bottom outlet DIN 12480:2009-12 5 Figure 2 Three-neck bott
12、les with angled neck assembly Designation of a three-neck bottle with round thread (Form G) and vertical neck assembly (V) with a nominal volume of 1 l: Three-neck bottle DIN 12480 GV 1 Designation of a three-neck bottle with conical ground socket (Form S), angled neck assembly (W) and bottom outlet
13、 with a nominal volume of 0,5 l: Three-neck bottle DIN 12480 STW 0,5 Table 1 Dimensions for three-neck bottles Dimensions in millimetres Nominal volume Outer diameter Round thread acc. to DIN 168-1 Conical socket DIN 12245-A Conical ground socket DIN 12242-ANS l d 3 e h1min. r h2max. s min. Neck Bot
14、tom outlet Neck Bottom outlet 0,5 86 60 155 10 14 2,2 GL 18 GL 18 19/26 19/26 1 111 75 185 15 16 2,5 GL 25 GL 18 24/29 19/26 2 135 90 225 20 18 3,2 GL 25 GL 18 29/32 19/26 5 185 110 290 25 23 GL 32 GL 25 34/35 29/32 4 Material Three-neck bottles shall be manufactured from borosilicate glass 3.3 in a
15、ccordance with DIN ISO 3585 and shall be free from residual strain and from glass defects which might impair appearance or durability. DIN 12480:2009-12 6 5 Design The body of the bottle may increase conically from the base within the tolerances given for the outer diameter d. The taper shall be 1 :
16、 30. The necks may be vertical (see Figure 1) or may be arranged at an angle of maximum 45 (see Figure 2). 6 Thermal shock endurance The thermal shock endurance (TWB) of Woulff bottles in accordance with this standard depends on their size and wall thickness. It shall be determined in accordance wit
17、h DIN ISO 718. If needed, the details of requirements shall be agreed when ordering. 7 Marking The bottles shall bear the following permanent inscriptions: a) nominal volume, b) name and/or brand of the manufacturer and/or supplier, c) type of glass, if not identifiable otherwise. In addition, the following may be marked: d) The number of this standard: “DIN 12480”.
