1、Designation: E 1378 99 (Reapproved 2005)Standard Specification forLaboratory Glass Multiple Neck Distilling/Boiling Flasks1This standard is issued under the fixed designation E 1378; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification provides standard dimensional re-quirements for multiple neck distilling/boiling flask
3、s.2. Referenced Documents2.1 ASTM Standards:2E 438 Specification for Glasses in Laboratory ApparatusE 671 Specification for Maximum Permissible Thermal Re-sidual Stress in Annealed Glass Laboratory ApparatusE 676 Specification for Interchangeable Taper-GroundJointsE 920 Specification for Commerciall
4、y Packaged LaboratoryApparatusE 921 Specification for Export Packaged Laboratory Appa-ratusE 1133 Practice for Performance Testing of Packaged Labo-ratory Apparatus for United States GovernmentE 1157 Specification for Sampling and Testing of ReusableLaboratory Glassware3. Classification3.1 Flasks sh
5、all be of the following types and sizes.3.1.1 Type IStandard taper ( $ ) necks, equal height:500 mL1 000 mL2 000 mL3 000 mL5 000 mL3.1.2 Type IIThree tooled necks, unequal height:250 mL500 mL1 000 mL2 000 mL3 000 mL5 000 mL3.1.3 Type IIIThree standard taper ( $ ) necks, unequalheight:250 mL300 mL500
6、 mL1 000 mL2 000 mL3 000 mL5 000 mL12 000 mL3.1.4 Type IVThree standard taper ( $ ) necks, equalheight:250 mL500 mL1 000 mL2 000 mL3 000 mL5 000 mL3.1.5 Type VThree tooled necks, angled:200 mL500 mL1 000 mL3.1.6 Type VIThree standard taper ( $ ) necks, angled:25 mL50 mL100 mL200 mL250 mL300 mL500 mL
7、1 000 mL3.1.7 Type VIITwo standard taper ( $ ) necks, unequalheight:500 mL1 000 mL2 000 mL5 000 mL3.1.8 Type VIIITwo standard taper ( $ ) necks, angled:100 mL250 mL500 mL1 000 mLNOTE 1The term millilitre (mL) is commonly used as a special namefor the cubic centimetre (cm3) and similarly the litre (L
8、) for 1000 cubiccentimetres, in accordance with the International System of Units (SI).4. Material and Annealing4.1 Flasks shall be made of borosilicate glass conforming tothe requirements of Type I, Class A of Specification E 438.4.2 Maximum residual thermal stress shall conform toSpecification E 6
9、71.1This specification is under the jurisdiction of ASTM Committee E41 onLaboratory Apparatus and is the direct responsibility of Subcommittee E41.01 onApparatus.Current edition approved May 1, 2005. Published October 2005.Originallyapproved in 1990. Last previous edition approved in 1999 as E 13789
10、9.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Bo
11、x C700, West Conshohocken, PA 19428-2959, United States.5. Appearance5.1 The general appearance of the flasks shall conform toFig. 1.6. Design6.1 Necks on all flasks shall be circular in cross sections,and center necks shall be perpendicular to center of flask body.6.2 Top shall be strengthened and
12、finished. Top finishesshall be either beaded, tooled or standard taper. (The lattercomplies with Specification E 676.)6.3 Wall thickness minimums are shown in Table 1.6.4 The flasks shall be spherical in shape to the point ofjunction with the flask necks.7. Capacity and Dimensions7.1 The nominal cap
13、acity of a flask shall not exceed theactual capacity to the base of the neck. Dimensions shallconform to the requirements of Table 1.8. Markings8.1 Each flask shall be permanently marked with the nameor known trademark of the manufacturer and the nominalcapacity. If applicable, the standard taper jo
14、int size shall bemarked on each flask.8.2 There shall be an area on one side of the flask formarking with a pencil.9. Sampling9.1 Refer to Specification E 115710. Packaging10.1 Select from Specifications E 920, E 921, or E 1133.11. Keywords11.1 boiling; distilling; flasks; glass; mult. neckASTM Inte
15、rnational takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely
16、 their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand sho
17、uld be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Sta
18、ndards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610
19、-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).FIG. 1 Flask TypesTABLE 1 Capacity and Dimensions for Multiple Neck FlasksNominal Capacity(mL)O.D. Body WidestPointmax (m/m)Overall Heightwithout Stoppermax (m/m)Wall ThicknessAmin (m/m)25 43 85 0.850 52 108 0.8100 66 122 0.8200 76 130 0.8250 87 151 0.8300 89 153 0.8500 107 208 0.81 000 134 247 0.82 000 170 313 1.13 000 192 260 1.45 000 223 386 1.512 000 298 385 2.0ANeck seal zones may be a minimum of 70 % of these values.E 1378 99 (2005)2
