ASTM E1095-99

Standard Specification for Common Laboratory Glass Funnels

SCOPE
1.1 This specification covers common laboratory or filter funnels, and filling or powder funnels for general laboratory use.

General Information

• Status: Historical
• Publication Date: 09-Dec-1999
• ICS: 71.040.20 - Laboratory ware and related apparatus
• Technical Committee: E41 - Laboratory Apparatus
• Drafting Committee: E41.01 - Laboratory Ware and Supplies

Relations

• Replaced By: ASTM E1095-99(2005) - Standard Specification for Common Laboratory Glass Funnels
• Effective Date: 01-May-2005

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 1095 – 99
Standard Specification for
Common Laboratory Glass Funnels
This standard is issued under the fixed designation E 1095; 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.
1. Scope 3.1.3 Type 3—Laboratory funnel with ribbed inner wall.
The ribs are small raised protuberances running from funnel
1.1 This specification covers common laboratory or filter
rim toward the stem.
funnels, and filling or powder funnels for general laboratory
3.1.3.1 Class A, (short stem)—Sizes 50, 65, 75, and
use.
100-mm diameters.
2. Referenced Documents 3.1.3.2 Class B, (long stem)—Sizes 50, 65, 75, and 100-mm
diameters.
2.1 ASTM Standards:
3.1.4 Type 4—Filling or powder funnels.
E 438 Specification for Glasses in Laboratory Apparatus
3.1.4.1 Short, Wide Diameter Stem—Sizes 60, 65, 75, 80,
E 671 Specification for Maximum Permissible Thermal Re-
100, 125, and 150-mm diameters.
sidual Stress in Annealed Glass Laboratory Apparatus
E 920 Specification for Commercially Packaged Laboratory
4. Material and Annealing
Apparatus
4.1 Material—Funnelsshallbemadeofglassconformingto
E 921 Specification for Export Packaged Laboratory Appa-
the requirement of Type 1, Class A or B or Type 2 of
ratus
Specification E 438.
E 1133 Practice for PerformanceTesting of Packaged Labo-
4.2 Annealing—Maximumresidualstressshallbesuchasto
ratoryApparatus for United States GovernmentApparatus
conform to Specification E 671.
E 1157 Specification for Sampling and Testing of Reusable
Laboratory Glassware
5. Design
3. Classification 5.1 Bowl—Theinnerwallofthebowlshalldivergefromthe
stem at an angle of 30 6 1.2°. The bowl shall be securely
3.1 There shall be four types of laboratory glass funnels
sealed to the stem. The axis of the funnel bowl shall coincide
further divided into classes.
with the stem axis and the rim shall be perpendicular to this
3.1.1 Type 1—Common laboratory funnel with smooth
axis. The edge of the rim shall be mold finish, beaded or
inner surface, divided into the following three classes:
ground to a horizontal surface, as specified.
3.1.1.1 Class A, (short stem)—Sizes 25, 35, 45, 55, 65, 75,
5.1.1 Type 1—Bowl of common funnels shall be plain.
90, 100, 125, and 150-mm diameters.
5.1.2 Type 1, Class C—Bottom of bowl shall be ground flat.
3.1.1.2 Class B, (long stem)—Sizes 35, 45, 50, 55, 65, 75,
5.1.3 Type 2—Bowl of fluted funnels shall have an inner
90, 100, 125, 150, 200, 250, and 300-mm diameters.
wall with 8 equally spaced small grooves or depressions that
3.1.1.3 Class C, (without stem)—Sizes 50, 75, and 100-mm
shall extend upward from the inner bottom zone of the bowl ⁄2
diameters.
to ⁄8times the inner bowl depth.
3.1.2 Type 2—Laboratory funnel with fluted inner wall. The
5.1.4 Type 3—Bowl of ribbed funnel shall have an inner
flutes are small grooves or depressions running upward from
wall with raised ribs spaced at the rim approximately 15 mm
the bottom zone of the bowl.
apart.Alternate ribs shall extend to within approximately 6 mm
3.1.2.1 Class A, (short stem)—Sizes 50, 65, 75, and
of the junction of the bowl and the stem, and the others to
100-mm diameters.
within approximately 19 mm of this junction. Ribbed funnels
3.1.2.2 Class B, (long stem)—Sizes 50, 65, 75, and 100-mm
may also have ribs on the outer bowl surface or stem, or both.
diameters.
If the outer bowl surface is ribbed, there must be at least three
ribs evenly spaced around the bowl.
5.2 Stem:
This specification is under the jurisdiction of ASTM Committee E-41 on
Laboratory Apparatus and is the direct responsi
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