ASTM E237-02
(Specification)Standard Specification for Laboratory Glass Microvolumetric Vessels (Volumetric Flasks and Centrifuge Tubes)
Standard Specification for Laboratory Glass Microvolumetric Vessels (Volumetric Flasks and Centrifuge Tubes)
SCOPE
1.1 This specification covers volumetric flasks and four types of centrifuge tubes, widely used in microchemistry.
Note 1—Specifications for several items listed below were developed by the Committee on Microchemical Apparatus, Division of Analytical Chemistry, American Chemical Society.
1.2 Product with a stated capacity not listed in this standard may be specified Class A tolerance when product conforms to the tolerance range of the next smaller volumetric standard product listed in Table 1.
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Designation: E 237 – 02
Standard Specification for
Laboratory Glass Microvolumetric Vessels (Volumetric
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Flasks and Centrifuge Tubes)
This standard is issued under the fixed designation E 237; 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.
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1. Scope Laboratory Apparatus
1.1 This specification covers volumetric flasks and four
3. Volumetric Flasks
types of centrifuge tubes, widely used in microchemistry.
3.1 The volumetric flasks shall be of either Style I or Style
NOTE 1—Specifications for several items listed below were developed
II of Fig. 1 and shall conform to the requirements of Fig. 1 and
by the Committee on Microchemical Apparatus, Division of Analytical
Table 1. Each flask shall be marked with the symbol “TC” (or
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Chemistry, American Chemical Society.
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“IN”), the capacity, “20°C”, and a 16 mm marking area. (All
1.2 Product with a stated capacity not listed in this standard
in an optional location on the flask.)
may be specified Class A tolerance when product conforms to
4. Centrifuge Tubes
the tolerance range of the next smaller volumetric standard
product listed in Table 1.
4.1 Centrifuge tubes of four types shall conform to the
requirements prescribed in Tables 2-4 and Figs. 2-5. The types
2. Referenced Documents
shown fit into the metal shields supplied with commercially
2.1 ASTM Standards:
available centrifuges. Removal of the glass stoppers from the
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E 438 Specification for Glasses in Laboratory Apparatus
centrifuge tubes shown in Fig. 3 and Fig. 4 is advisable before
E 542 Practice for Calibration of Laboratory Volumetric
centrifugation. The four types of centrifuge tubes specified are
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Apparatus
as follows:
E 671 Specification for Maximum Permissible Thermal
4.1.1 Conical bottom, plain (Fig. 2).
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Residual Stress in Annealed Glass Laboratory Apparatus
4.1.2 Conical bottom, stoppered (Fig. 3).
E 694 Specification for Laboratory Glass VolumetricAppa-
4.1.3 Conical bottom, stoppered and graduated (Fig. 4).
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ratus
4.1.4 Cylindrical bottom, plain (Fig. 5).
E 920 Specification for Commercially Packaged Laboratory
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5. Sampling and Testing
Apparatus
E 921 Specification for Export Packaged Laboratory Appa-
5.1 Refer to Specification E 1157.
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ratus
6. Calibration
E 1133 Practice for PerformanceTesting of Packaged Labo-
ratory Apparatus for United States Government Procure-
6.1 Flasks and graduated tubes shall be calibrated in accor-
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ments
dance with Practice E 542 and conform to applicable require-
E 1157 Specification for Sampling and Testing of Reusable
ments of Specification E 694. Glass shall be Type I, ClassAof
Specification E 438 and annealing shall be in accordance with
Specification E 671.
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This specification is under the jurisdiction of ASTM Committee E41 on
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
7. Packaging
Apparatus.
7.1 Select from Specification E 920, Specification E 921, or
Current edition approved Oct. 10, 2002. Published November 2002. Originally
published as E 237 – 64. Last previous edition E 237 – 94a(1998). Practice E 1133.
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Committee on Microchemical Apparatus, Division of Analytical Chemistry,
American Chemical Society, “Report on Recommended Specifications for Micro-
8. Keywords
chemical Apparatus. Volumetric Glassware: Flasks, Pipets, and Centrifuge Tubes,”
8.1 glass, laboratory; microvolumetric; vessels
Analytical Chemistry, Vol 28, 1956, p. 1993.
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Annual Book of ASTM Standards, Vol 14.04.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E237–02
TABLE 1 Volumetric Flask (see Fig. 1)
Class A/ Tolerance,
Style Capacity, mL A, ID, max/mm B, ID, ref/mm C, max/mm D, max/mm Stopper No.
6 mL
I 1 0.010 5.3 8.25 70 100 8
II 1 0.010 5.3 — 95 125 8
I 2 0.015 6.4 10.75 70 100 8
I 3 0.015 6.4 13.50 72 100 8
I 4 0.020 7.3 14.00 75 100 8
I 5 0.020 7.3 15.75 75 100 8
I 10 0.020 8.25 18.00 110 135 9
I 25 0.030 8.7 26.00 140 165 9
NOTE 1—The shape of the base may be either round or hexagonal
FIG. 1 Volumetric Flasks (see Table 1)
TABLE 2 Centrifuge Tubes, Conical Bottom, Plain (see Fig. 2)
Nominal A, B,OD C,ODTop
D, Length E,ODat
Capacity, Height, Cylindrical Finish,
of Taper, mm Bottom, mm
mL mm Portion, mm mm
0.5 58626.0 6 0.25 13.0 6 1.0 30 623.5 6 0.5
161 6 2 8.256 0.25 13.0 6 1.0 30 623.5 6 0.5
266 6 2 10.75 6 0.25 13.5 6 1.0 30 624.0 6 0.5
374 6 2 10.75 6 0.25 13.5 6 1.0 30 624.0 6 0.5
5 101 6 2 13.00 6 0.50 16.25 6 0.75 40 624.0 6 0.5
TABLE 3 Centrifuge Tubes, Conical Bottom, Stoppered (see Fig. 3)
Nominal A, B,OD C,ODTop
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