ASTM E675-02

Standard Specification for Interchangeable Taper-Ground Stopcocks And Stoppers

SCOPE
1.1 The specification provides standard dimensional requirements for obtaining, within practical limits, interchangeability in stopcocks and stoppers for ordinary laboratory and industrial applications. It covers dimensional interchangeability of the ground surfaces only and does not involve design characteristics of the item except where specified.
Note 1—The dimensions pertaining to stopcocks and stoppers were taken from the Commercial Standard CS 21 of the U.S. Department of Commerce.
Note 2—Although glass is the most commonly used material for stopcocks and stoppers, other materials may be used as specified. Stopcocks and stoppers constructed from glass should conform to Specifications E 438 and E 671.

General Information

• Status: Historical
• Publication Date: 09-May-2002
• ICS: 71.040.20 - Laboratory ware and related apparatus
• Technical Committee: E41 - Laboratory Apparatus
• Drafting Committee: E41.01 - Laboratory Ware and Supplies

Relations

• Replaces: ASTM E675-94(1998) - Standard Specification for Interchangeable Taper-Ground Stopcocks And Stoppers
• Effective Date: 10-May-2002
• Replaced By: ASTM E675-02(2007) - Standard Specification for Interchangeable Taper-Ground Stopcocks And Stoppers
• Effective Date: 01-Nov-2007
• Referred By: ASTM E1404-94(2019) - Standard Specification for Laboratory Glass Conical Flasks
• Effective Date: 10-May-2002
• Referred By: ASTM E288-10(2017) - Standard Specification for Laboratory Glass Volumetric Flasks
• Effective Date: 10-May-2002
• Referred By: ASTM E982-94(2021) - Standard Specification for Laboratory Glass Test Tubes
• Effective Date: 10-May-2002
• Referred By: ASTM E1272-02(2019) - Standard Specification for Laboratory Glass Graduated Cylinders
• Effective Date: 10-May-2002
• Referred By: ASTM E287-02(2019) - Standard Specification for Laboratory Glass Graduated Burets
• Effective Date: 10-May-2002
• Referred By: ASTM E1096-86(2018) - Standard Specification for Laboratory Glass Separatory Funnels
• Effective Date: 10-May-2002
• Referred By: ASTM E694-18 - Standard Specification for Laboratory Glass Volumetric Apparatus
• Effective Date: 10-May-2002
• Referred By: ASTM E911-98(2021) - Standard Specification for Glass Stopcocks with Polytetrafluoroethylene (PTFE) Plugs
• Effective Date: 10-May-2002
• Referred By: ASTM E1189-00(2022) - Standard Specification for Micro-Burets (Koch Style)
• Effective Date: 10-May-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E 675 – 02
Standard Specification for
1
Interchangeable Taper-Ground Stopcocks And Stoppers
This standard is issued under the fixed designation E 675; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 The specification provides standard dimensional re-
quirements for obtaining, within practical limits, interchange-
ability in stopcocks and stoppers for ordinary laboratory and
industrial applications. It covers dimensional interchangeabil-
ity of the ground surfaces only and does not involve design
characteristics of the item except where specified.
NOTE 1—The dimensions pertaining to stopcocks and stoppers were
taken from the Commercial Standard CS 21 of the U.S. Department of
Commerce.
NOTE 2—Although glass is the most commonly used material for
stopcocks and stoppers, other materials may be used as specified.
Stopcocks and stoppers constructed from glass should conform to Speci-
fications E 438 and E 671.
2. Referenced Documents
2.1 ASTM Standards:
2
E 438 Specification for Glasses in Laboratory Apparatus
E 671 Specification for Maximum Permissible Thermal Re-
2
FIG. 1 Stopcock
sidual Stress in Annealed Glass Laboratory Apparatus
E 920 Specification for Commercially Packaged Laboratory
2
3.2 Taper—All straight-bore stopcocks shall have a taper of
Apparatus
2
1 6 0.006 mm of diameter per 10 mm of length (1 to 10).
E 921 Practice for Export Packaged Laboratory Apparatus
3.3 Master Gages—Dimensions and tolerances for master
E 1133 Practice for PerformanceTesting of Packaged Labo-
2
gages shall be as shown in Fig. 2 and Fig. 3, and Table 2 and
ratory Apparatus United States Government Procurement
Table 3. Overall diameter of ring gage shall be approximately
E 1157 Specification for Sampling and Testing Reusable
2
twice the diameter of the bore at the reference line in the
Laboratory Glassware
window, but not less than 25 mm.
2.2 U.S. Department of Commerce Standard:
CS 21 Interchangeable Taper-Ground Joints, Stopcocks,
3
TABLE 1 Single Straight-Bore Stopcocks
Stoppers, and Spherical-Ground Joints
Diameter of Plug Length of Diameter of
3. Requirements for Single Straight-Bore Taper-Ground
Stopcock at Center-Line Shell, 60.5 Bore Hole in
Designation of Bore, mm mm Plug, mm
Stopcocks
D E F
3.1 The designations and dimensions for single straight-
A
1-M 720 1
bore stopcocks shall be as shown in Fig. 1 and Table 1.
112 30 1
1 1
1 ⁄2 12 30 1 ⁄2
212 30 2
1
317 40 3
This specification is under the jurisdiction of ASTM Committee E41 on
417 40 4
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
520 44 5
Apparatus.
620 44 6
Current edition approved May 10, 2002. Published August 2002. Originally
825 52 8
published as E 675 – 79. Last previous edition E 675 – 94 (1998).
10 35 56 10
2
Annual Book of ASTM Standards, Vol 14.04.
3 A
Discontinued 1979—U.S. Department of Commerce, Washington, DC 20234. Micro size.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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E675–02
TABLE 2 Master Plug Gages for Single Straight-Bore Stopcocks
Distance from
Length of Tapered Diameter at Large End of
Stopcock Portion +2.0 mm, Gaging Point Tapered Portion
Designation −0 mm 60.003 mm to Gaging
EE DD Point, mm
NN
A
1-M 32 7 20
142 12 25
1
1 ⁄2 42 12 25
242 12 25
352 17 30
452 17 30
556 20 32
656 20 32
864 25 36
10 68 35 38
A
Micro size.
TABLE 3 Master Ring Gages for Single Straight-Bore Stopcocks
Length of Inside Diameter Distance from
Stopcock Ring, +0.2 at Gaging Point, Top to Gaging
Designation mm, −0 mm 60.003 mm Point, mm
EE DD NN
FIG. 2 Master Plug Gage for Single Straight-Bore Stopcocks
A
1-M 20 7 10
1 301215
1
1 ⁄2 30 12 15
2 301215
3 401720
4 401720
5 442022
6 442022
8 522526
10 56 35 28
A
Micro size.
width of the opening at the inner surface of ring, measured
perpendicular to the axis, shall not exceed one fourth of the
length of the ring. Reference line in recess shall be placed
approximately midway between ends of ring gage.
3.3.3 Fit of Product in Working Gages— The product (both
inner and outer members) shall fit the corresponding working
gages so that the centerline through the bore corresponds with
1
the reference line on the gage within 6 0.3 mm for 1, 1 ⁄2 , and
2-mm bores;6 0.5 mm for 3 and 4-mm bores; and 6 1.0 mm
for 5-mm and larger bores.
4. Requirements for Single Oblique-Bore Stopcocks
1
4.1 Design, dimensions, and tolerances for 1, 1 ⁄2,2,3,and
FIG. 3 Master Ring
...