1、Designation: E1406 95 (Reapproved 2016)Standard Specification forLaboratory Glass Filter Flasks1This standard is issued under the fixed designation E1406; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A
2、 number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification provides standard dimensional re-quirements for glass filtering flasks suitable for general labo-ratory use.2. Refe
3、renced Documents2.1 ASTM Standards:2E438 Specification for Glasses in Laboratory ApparatusE671 Specification for Maximum Permissible Thermal Re-sidual Stress in Annealed Glass Laboratory ApparatusE676 Specification for Interchangeable Taper-Ground JointsE920 Specification for Commercially Packaged L
4、aboratoryApparatusE921 Specification for Export Packaged Laboratory Appa-ratusE1133 Practice for Performance Testing of Packaged Labo-ratory Apparatus for United States Government Procure-mentsE1157 Specification for Sampling and Testing of ReusableLaboratory Glassware3. Classification3.1 Filtering
5、flasks shall be in the following types andcapacities:3.1.1 Type IPlain, heavy wall, in capacities of 250, 500,1000, 2000, or 4000 mL.3.1.2 Type IIWith integral side-arm.3.1.2.1 Class 1With grooved or barbed side-arm in ca-pacities of 25, 50, 125, 250, 500, 1000, 2000, and 4000 mL.3.1.2.2 Class 2With
6、 threaded side-arm in capacities of125, 250, 500, 1000, 2000, and 4000 mL.3.1.3 Type IIIWith replaceable side-arm.3.1.3.1 Class 1Straight style, in capacities of 250, 500,1000, 2000, and 4000 mL.3.1.3.2 Class 245 % angle side-arm, in capacities of 125,250, 500, 1000, 2000, and 4000 mL.3.1.3.3 Class
7、3Two 45 % angle side-arm, in capacities of500, 1000, and 2000 mL.NOTE 1The term millilitre (mL) is commonly used as a special namefor the cubic centimetre (cm3) and similarly the liter (L) for 1000 cubiccentimetres, in accordance with the International System of Units (SI).4. Material and Manufactur
8、ing4.1 Flasks shall be made of borosilicate glass conforming tothe requirement of Type I, Class A of Specification E438.4.2 Maximum residual thermal stress shall be such as toconform to Specification E671.5. Workmanship, Finish, and Appearance5.1 The general appearance of the flasks shall be as illu
9、s-trated in Fig. 1.6. Design6.1 Conical flasks shall have flat bottoms. However, con-cavity in the bottom shall be permitted. The flasks shall standvertically without rocking or spinning when placed on a levelsurface. Bottom heel radius shall be smooth and shall be notless than that given in Table 1
10、.6.2 Neck finish shall be strengthened and may be tapered orcylindrical or, alternatively, it may be manufactured with aninterchangeable taper-ground joint of appropriate size (seeSpecification E676).6.3 Side-arm or Type II and III shall be located above orstraddling the neck to body juncture. It sh
11、all be locatedsufficiently below the top finish to avoid blockage by aninserted stopper.6.3.1 Type II shall have an integral glass side-arm.6.3.1.1 Type IIClass 1 side-arms (grooved or barbed) shallbe capable of accepting rubber tubing (see Fig. 1).6.3.1.2 Type IIClass 2 side-arms shall be threaded
12、so as toaccept a threaded connector designed to accept rubber tubing(see Fig. 1).6.3.2 Type III shall be designed to accept a neoprenegrommet which in turn accepts a replaceable side-arm.6.3.2.1 Type III, Class 1, shall have a replaceable glassside-arm that fits within the grommet, 90 from the axis
13、of theflask.1This specification is under the jurisdiction of ASTM Committee E41 onLaboratory Apparatus and is the direct responsibility of Subcommittee E41.01 onLaboratory Ware and Supplies.Current edition approved Sept. 1, 2016. Published September 2016. Originallyapproved in 1991. Last previous ed
14、ition approved in 2016 as E1406 95 (2016).DOI: 10.1520/E1406-95R16.2For 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 we
15、bsite.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16.3.2.2 Type III, Class 2 shall have a replaceable polypro-pylene side arm that fits within the grommet initially at 90from the axis of the flask, but then bent at a 45 angle.6.3.2
16、.3 Type III, Class 3 shall be like Type III, Class 2except to have a second neoprene grommet and polypropyleneside-arm located in the heel of the flask and in line with the firstside arm in the neck area. (This second opening must be closedduring filtration.)7. Capacity and Dimensions7.1 Conical fil
17、tering flasks shall conform to the require-ments of Table 1.8. Pressure Resistance8.1 Filter flasks shall be so constructed as to withstand apressure differential (external-internal) of 29 psi, or twice thepressure in normal use, when tested in accordance with the testmethod specified in Annex A1.9.
18、 Sampling and Testing9.1 Refer to Specification E1157.10. Product Markings10.1 Each flask shall be permanently marked with the nameor known trademark of the manufacturer and the nominalcapacity. Flasks may also be marked with approximate gradu-ation markings that have a limit of error of 65 % of ful
19、lcapacity.10.2 There shall be an area on one side of the flask formarking with a pencil.11. Packaging11.1 Refer to either Specification E920, Specification E921,or Practice E1133.12. Keywords12.1 flasks; filtering; glass; laboratoryFIG. 1 General Appearance of Glass Filter FlasksTABLE 1 Capacity and
20、 DimensionsCapacity,mLBodyOutsideDiameterWidestDiameter,max, mmOverallHeightmax, mmRubberStopperSize (neck)WallThicknessBottom andHeelmin, mmBase/HeelRadiusmin, mm25 41 77 3 1.0 650 52 85 4 1.5 6125 71 115 5 1.5 12250 86 160 6 1.8 12500 108 190 7 2.0 151000 138 245 8 2.0 202000 170 305 9 2.5 234000
21、210 385 12 3.0 26E1406 95 (2016)2ANNEX(Mandatory Information)A1. HYDRAULIC EXTERNAL PRESSURE TESTSA1.1 The filter flask should be tested in a pressure vesselconnected to a suitable water supply and fitted with a pressuregage of appropriate range. Alternatively, pressure may beapplied by means of a r
22、am pump connected to a water reservoirwith a release valve discharging back to the reservoir. Asuitable arrangement is shown in Fig. A1.1. Quick-actionfastening for the lid of the pressure vessel is desirable to avoidwaste of time in tightening ordinary nuts and bolts.A1.2 The filter flask shall be
23、closed by appropriate means,for example stoppers. To ensure submersion, it is necessary tohold the filter flask in some suitable device or, alternatively,weights wrapped in paper or cloth may be placed inside it.A1.3 After the filter flask is placed in position and the lidfastened the pressure vesse
24、l shall be filled with water, and thepressure brought up to 29-lb gage pressure, and maintained atthat pressure for 1 min.A1.4 A test of this duration indicates that a vessel passing itcould be expected to withstand indefinitely a pressure differ-ential (external-internal) of 14.5 lb provided that t
25、he glass isnot abraded, bruised, or otherwise damaged in subsequentservice.A1.5 Nevertheless, when the flask is in use, precautionsagainst its collapse under pressure should be observed.FIG. A1.1 Hydraulic Test Rig for Filter FlasksE1406 95 (2016)3ASTM International takes no position respecting the
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27、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 should be addressed to ASTM International Head
28、quarters. 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 Standards, at the address shown below.This sta
29、ndard 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 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 95 (2016)4
