ASTM E675-2002(2012) 4375 Standard Specification for Interchangeable Taper-Ground Stopcocks And Stoppers《可互换的圆锥接地旋塞阀和栓塞的标准规范》.pdf

1、Designation: E675 02 (Reapproved 2012)Standard Specification forInterchangeable Taper-Ground Stopcocks And Stoppers1This standard is issued under the fixed designation E675; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year

2、of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 The specification provides standard dimensional re-quirements for obtaining, within practical limits, interchange-a

3、bility in stopcocks and stoppers for ordinary laboratory andindustrial applications. It covers dimensional interchangeabil-ity of the ground surfaces only and does not involve designcharacteristics of the item except where specified.NOTE 1The dimensions pertaining to stopcocks and stoppers weretaken

4、 from the Commercial Standard CS 21 of the U.S. Department ofCommerce.NOTE 2Although glass is the most commonly used material forstopcocks and stoppers, other materials may be used as specified.Stopcocks and stoppers constructed from glass should conform to Speci-fications E438 and E671.2. Reference

5、d Documents2.1 ASTM Standards:2E438 Specification for Glasses in Laboratory ApparatusE671 Specification for Maximum Permissible Thermal Re-sidual Stress in Annealed Glass Laboratory ApparatusE920 Specification for Commercially Packaged LaboratoryApparatusE921 Specification for Export Packaged Labora

6、tory Appa-ratusE1133 Practice for Performance Testing of Packaged Labo-ratory Apparatus for United States Government Procure-mentsE1157 Specification for Sampling and Testing of ReusableLaboratory Glassware2.2 U.S. Department of Commerce Standard:CS 21 Interchangeable Taper-Ground Joints, Stopcocks,

7、Stoppers, and Spherical-Ground Joints33. Requirements for Single Straight-Bore Taper-GroundStopcocks3.1 The designations and dimensions for single straight-bore stopcocks shall be as shown in Fig. 1 and Table 1.3.2 TaperAll straight-bore stopcocks shall have a taper of1 6 0.006 mm of diameter per 10

8、 mm of length (1 to 10).3.3 Master GagesDimensions and tolerances for mastergages shall be as shown in Fig. 2 and Fig. 3, and Table 2 andTable 3. Overall diameter of ring gage shall be approximatelytwice the diameter of the bore at the reference line in thewindow, but not less than 25 mm.3.3.1 Plug

9、GagePlug shall have two short axial lines1806 0.5 apart intersecting the reference line for checkinglocation of bore hole. In addition to the two axial lines 180apart intersecting the reference line on the 4 and 6-mm plugs,two additional axial lines shall be provided on each of theseplugs for checki

10、ng the location of the bore hole of T-bore and120-deg bore stopcocks. These two additional axial lines shallbe placed 90 and 120 (6 0.5) from one of the first two axiallines.3.3.2 Ring GageThe central milled recess, or window,shall be placed approximately midway between the ends of thering gage. Wid

11、th of recess measured parallel with the axis shallbe approximately one fourth of the length of the ring, and thewidth of the opening at the inner surface of ring, measuredperpendicular to the axis, shall not exceed one fourth of thelength of the ring. Reference line in recess shall be placedapproxim

12、ately midway between ends of ring gage.3.3.3 Fit of Product in Working Gages The product (bothinner and outer members) shall fit the corresponding workinggages so that the centerline through the bore corresponds withthe reference line on the gage within 6 0.3 mm for 1, 112, and2-mm bores;6 0.5 mm fo

13、r 3 and 4-mm bores; and 6 1.0 mmfor 5-mm and larger bores.4. Requirements for Single Oblique-Bore Stopcocks4.1 Design, dimensions, and tolerances for 1, 112,2,3,and4-mm oblique-bore stopcocks shall be as shown in Fig. 4 andTable 4.4.2 TaperAll single oblique-bore stopcocks shall have ataper of 1 6 0

14、.006 mm of diameter per 10 mm of length (1 to10).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 Nov. 1, 2012. Published November 2012. Originallyapproved in 1979.

15、Last previous edition approved in 2007 as E675 02(2007). DOI:10.1520/E0675-02R12.2For 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

16、 onthe ASTM website.3Discontinued 1979U.S. Department of Commerce, Washington, DC 20234.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.3 Master GagesThe dimensions and tolerances for mas-ter gages shall be as shown in Fig. 5 and Fi

17、g. 6 and Table 5 andTable 6. The overall diameter of the ring gage shall beapproximately twice the diameter of the bore at its midpoint,but not less than 25 mm.4.3.1 Plug GageThe upper circumferential reference lineshall be the gaging point. Each reference line shall have a shortaxial line intersect

18、ing it, the two axial lines being on oppositesides of the plug and in the same plane running through the axis(180 6 0.5 apart) for checking location of bore holes.4.3.2 Ring GageThe width of the milled recesses, orwindows, measured parallel with the axis shall be approxi-mately one fourth of the len

19、gth of the ring, and the width of theopening at the inner surface of ring, measured perpendicular tothe axis, shall not exceed one fourth of the length of the ring.The recesses shall be so placed that the reference lines fallapproximately midway in the recess.4.3.3 Fit of Product in Working Gages Th

20、e product (bothinner and outer members) shall fit the corresponding workinggages so that the centerlines through the openings correspondwith the reference lines on the gages within 6 0.3 mm for 1,112, and 2-mm bores, and 6 0.5 mm for 3 and 4-mm bores.5. Requirements for Double Oblique-Bore (Three-Wa

21、y)Stopcocks5.1 Design, dimensions, and tolerances for 1, 112,2,3,and4-mm, three-way bore stopcocks shall be as shown in Fig. 7and Table 7.5.2 TaperAll double oblique-bore stopcocks shall have ataper of 1 6 0.006 mm of diameter per 10 mm of length (1 to10).5.3 Master GagesDimensions and tolerances fo

22、r mastergages shall be as shown in Fig. 8 and Fig. 9 and Table 8 andTable 9. The overall diameter of the ring gage shall beFIG. 1 StopcockTABLE 1 Single Straight-Bore StopcocksStopcockDesignationDiameter of Plugat Center-Lineof Bore, mmDLength ofShell, 0.5mmEDiameter ofBore Hole inPlug, mmF1-MA720 1

23、112 3112 12 30 11221 0317 4 341 4520 562 4 6825 52 810 35 56 10AMicro size.FIG. 2 Master Plug Gage for Single Straight-Bore StopcocksFIG. 3 Master Ring Gage for Single Straight-Bore StopcocksE675 02 (2012)2approximately twice the diameter of the bore at the referenceline in the central window.5.3.1

24、Plug GageThe central circumferential reference lineshall be the gaging point. A short axial reference line shallintersect each of the circumferential reference lines. The axialline intersecting the central circumferential reference line shallbe on the opposite side of the plug from the other two axi

25、allines. All three axial lines shall be in the same plane runningthrough the axis (180 6 0.5) to check the location of the boreholes.5.3.2 Ring GageThe width of the milled recesses, orwindows, measured parallel with the axis shall be approxi-mately one fourth of the length of the ring, and the width

26、 of theopening at the inner surface of ring, measured perpendicular tothe axis, shall not exceed one fourth of the length of the ring.The recesses shall be so placed that the reference lines fallapproximately midway in the recesses.5.3.3 Fit of Product in Working Gages The product (bothinner and out

27、er members) shall fit the corresponding workinggages so that the centerlines through the openings correspondwith the reference lines on the gage within 6 0.3 mm for 1,112, and 2-mm bores, and 6 0.5 mm for 3 and 4-mm bores.6. Requirements for T-Bore and 120-deg Bore Stopcocks6.1 These stopcocks are d

28、esignated by the nominal boresize. With the exception of the bore sizes, the dimensions andtolerances for 1, 112, and 2-mm T-bore and 120-deg borestopcocks shall be the same as for the 4-mm single straight-bore stopcocks. Dimensions and tolerances for 3 and 4-mmT-bore and 120-deg bore stopcocks shal

29、l be the same as for the6-mm single-bore stopcocks. (See Table 1.)6.2 TaperAll T-bore and 120-deg bore stopcocks shallhave a taper of 1 6 0.006 mm of diameter per 10 mm of length(1 to 10).6.3 Master Gages:6.3.1 Plug GageThe 4-mm single straight-bore gage shallbe used for 1, 112, and 2-mm T-bore and

30、120-deg bore, and6-mm single straight-bore gage for 3 and 4-mm T-bore and120-deg bore stopcocks.6.3.2 Ring GageTo check diameter at the centerline of thebore, the 4-mm single straight-bore ring gage shall be used forthe 1, 112, and 2-mm sizes; and the 6-mm single straight-borering gage for the 3 and

31、 4-mm sizes of T-bore and 120-deg borestopcocks.6.3.3 Ring Gage for Locating Position of Bores for T-Boreand 120-deg BoreThe length of the ring gage shall be 25 61.0 mm for all sizes. The outside diameter of the rings shall beapproximately twice the diameter at the centerline of the bore.The inside

32、diameter at the large end of the tapered portion shallbe equal to the diameter at the centerline of the bore of the plug(product) 60.1 mm. Four reference lines approximately 0.1mm wide shall be provided on the upper face of the gage atright angles to the vertical axis. Two lines shall be 180 6 0.5ap

33、art, and the other two lines shall be 90 6 0.5 and 120 6 0.5from one of the first two lines.7. Requirements for Taper-Ground Flask Stoppers7.1 The designations and dimensions for taper-ground flaskstoppers shall be as shown in Fig. 10 and Table 10.7.2 TaperAll taper-ground flask stoppers shall have

34、ataper of 1 6 0.006 mm of diameter per 10 mm of length (1 to10).7.3 Master GagesDimensions and tolerances for mastergages shall be as shown in Fig. 11 and Fig. 12 and Table 11 andTable 12. The overall diameter of the ring gage shall beapproximately twice the diameter of the small end of the bore,but

35、 not less than 25 mm.7.3.1 Fit of Product in Working Gages The large end ofstopper shall come flush with large end of ring gage within60.5 mm along the axis for stopper Nos. 8 to 19, inclusive; andwithin6 1.0 mm along the axis for stopper Nos. 22 and 38,inclusive.7.3.2 The plug gage shall enter the

36、flask so that gaging pointon plug shall be at least 0.5 mm and not over 1.5 mm above theextreme top surface of the flask for stopper Nos. 8 to 19,inclusive; and at least 1.0 mm and not over 3.0 mm for stopperNos. 22 to 38, inclusive.8. Requirements for Taper-Ground Bottle Stoppers8.1 The designation

37、s and dimensions of taper-ground re-agent bottle stoppers shall be as shown in Fig. 13 and Table 13.8.2 TaperAll taper-ground reagent bottle stoppers shallhave a taper of 1 6 0.006 mm of diameter per 10 mm of length.TABLE 2 Master Plug Gages for Single Straight-Bore StopcocksStopcockDesignationLengt

38、h of TaperedPortion +2.0 mm,0 mmEEDiameter atGaging Point0.003 mmDDDistance fromLarge End ofTapered Portionto GagingPoint, mmNN1-MA32 7 20142 12 5112 42 12 2524 2352 17 3045556 20 265 3864 5 610 68 35 38AMicro size.TABLE 3 Master Ring Gages for Single Straight-Bore StopcocksStopcockDesignationLength

39、 ofRing, +0.2mm, 0 mmEEInside Diameterat Gaging Point,0.003 mmDDDistance fromTop to GagingPoint, mmNN1-MA20 7 101301215112 30 12 15340172045 4202264852252610 56 35 28AMicro size.E675 02 (2012)38.3 Master GagesDimensions and tolerances for mastergages shall be as shown in Fig. 14 and Fig. 15 and Tabl

40、e 14 andTable 15. The overall diameter of the ring gage shall beapproximately twice the diameter of the small end of the bore,but not less than 25 mm.8.3.1 Fit of Product in Working Gages The large end ofthe stopper shall come flush with large end of ring gage withinFIG. 4 Single Oblique-Bore Stopco

41、ckTABLE 4 Single Oblique-Bore StopcockStopcockDesignationDiameter of Plug atGaging Point, mmDLength of Shell,0.5 mmEDiameter of Borein Plug, mmFDistance from Large Endof Shell to GagingPoint, 0.5 mmNDistance betweenBore Holes,PA1 12.60 40 1 14.0 12112 12.60 40 112 14.0 122 12.60 40 2 14.0 123 17.35

42、50 3 16.5 174 17.35 50 4 16.5 17ASee 3.3.3.FIG. 5 Master Plug Gage for Single Oblique-Bore StopcocksFIG. 6 Master Ring Gage for Single Oblique-Bore StopcocksE675 02 (2012)46 0.5 mm along the axis for stopper Nos. 14 and 19, andwithin6 1.0 mm along the axis for stopper Nos. 24 to 45,inclusive.8.3.2 T

43、he plug gage shall enter bottle so that gaging point onplug shall be at least 0.5 mm and not over 1.5 mm above theextreme top surface of the bottle for stopper Nos. 14 and 19;and at least 1.0 mm and not over 3.0 mm for stopper Nos. 24to 45, inclusive.9. Sampling and Testing9.1 For sampling and testi

44、ng refer to Specification E1157.10. Product Marking10.1 Interchangeable taper-ground stopcocks, and stoppersconforming to this specification may be marked on bothmembers with (), indicating standard taper, the sizedesignation, and the trade-mark of the manufacturer or dis-tributor. This symbol is th

45、e manufacturers assurance to pur-chasers that the item identified by the symbol is a standardinterchangeable size and type, and is manufactured within thetolerances permitted by this specification. It shall not be usedon stopcocks, or stoppers, nor in advertising descriptions ofstopcocks, or stopper

46、s of any size or type other than thosedescribed in this specification.11. Packaging11.1 For packaging select from Specifications E920, E921,or Practices E1133.TABLE 5 Master Plug Gages for Single Oblique-Bore StopcocksStopcock DesignationLength ofTapered Portion,+2.0 mm, 0 mmEEDiameter at GagingPoin

47、t, 0.003 mmDDDistance from Large End ofTapered Portion to GagingPoint +1.5 mm, 0 mmNNDistance from Gaging Pointto Lower ReferenceLine 0.03 mmPP1 52 12.60 24.5 12112 52 12.60 24.5 122 52 12.60 24.5 123 62 17.35 27.0 174 62 17.35 27.0 17TABLE 6 Master Ring Gages for Single Oblique-Bore StopcocksStopco

48、ck DesignationLength of Ring, +0.2mm, 0 mmEEInside Diameter at GagingPoint, 0.003 mmDDDistance from Top to GagingPoint (Approximate)NNDistance from GagingPointto Lower Reference Point,0.03 mmPP1 40 12.60 14.0 12112 40 12.60 14.0 122 40 12.60 14.0 123 50 17.35 16.5 174 50 17.35 16.5 17FIG. 7 Double O

49、blique-Bore StopcockE675 02 (2012)512. Keywords12.1 ground; stopcocks; stoppersTABLE 7 Double Oblique-Bore StopcockStopcockDesignationDiameter ofPlug atGaging Point, mmDLength ofShell, 0.5 mmEDiameter ofBore in Plug, mmFDistance fromLarge End ofShell to Gaging point,0.5 mmNDistance fromGaging Point toCenterline of Bore NearLarge End, mmRADistance fromGaging Point toCenterline ofBore Near Small EndSA1 14.5 50 1 25 12.5 11.5112 14.5 50 112 25 12.5 11.52 14.5 50 2 25 12.5 11.53 16.2 56 3 28 14.0 12.94 16.2 56