ASTM E1095-99(2010)

Standard Specification for Common Laboratory Glass Funnels

ABSTRACT
This specification covers common laboratory or filter funnels, and filling or powder funnels for general laboratory use. The laboratory glass funnels shall be classified into four types which are divided into classes. Type 1 is common laboratory funnel with smooth inner surface which is divided into three classes: Class A with short stem, Class B with long stem, and Class C without stem. Type 2 is laboratory funnel with fluted inner wall. The flutes are small grooves or depressions running upward from the bottom zone of the bowl. This type is divided into Class A and Class B. Type 3 is laboratory funnel with ribbed inner wall. The ribs are small raised protuberances from funnel rim toward the stem. Class A and Class B funnels belong to this type. Type 4 is the last type which is filling or powder funnels. This type has short, wide diameter stem.
SCOPE
1.1 This specification covers common laboratory or filter funnels, and filling or powder funnels for general laboratory use.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

General Information

• Status: Historical
• Publication Date: 31-Aug-2010
• 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 E1095-99(2005) - Standard Specification for Common Laboratory Glass Funnels
• Effective Date: 01-Sep-2010

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E1095 −99(Reapproved 2010)
Standard Specification for
1
Common Laboratory Glass Funnels
This standard is issued under the fixed designation E1095; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.2 Type 2—Laboratory funnel with fluted inner wall. The
flutes are small grooves or depressions running upward from
1.1 This specification covers common laboratory or filter
the bottom zone of the bowl.
funnels, and filling or powder funnels for general laboratory
3.1.2.1 ClassA,(shortstem)—Sizes 50, 65, 75, and 100-mm
use.
diameters.
1.2 The values stated in SI units are to be regarded as
3.1.2.2 Class B, (long stem)—Sizes 50, 65, 75, and 100-mm
standard. No other units of measurement are included in this
diameters.
standard.
3.1.3 Type3—Laboratory funnel with ribbed inner wall.The
ribs are small raised protuberances running from funnel rim
2. Referenced Documents
toward the stem.
2
2.1 ASTM Standards:
3.1.3.1 ClassA,(shortstem)—Sizes 50, 65, 75, and 100-mm
E438 Specification for Glasses in Laboratory Apparatus
diameters.
E671 Specification for Maximum Permissible Thermal Re-
3.1.3.2 Class B, (long stem)—Sizes 50, 65, 75, and 100-mm
sidual Stress in Annealed Glass Laboratory Apparatus
diameters.
E920 Specification for Commercially Packaged Laboratory
3.1.4 Type 4—Filling or powder funnels.
Apparatus
3.1.4.1 Short, Wide Diameter Stem—Sizes 60, 65, 75, 80,
E921 Specification for Export Packaged Laboratory Appa-
100, 125, and 150-mm diameters.
ratus
4. Material and Annealing
E1133 Practice for Performance Testing of Packaged Labo-
ratory Apparatus for United States Government Procure-
4.1 Material—Funnels shall be made of glass conforming to
ments
the requirement of Type 1, Class A or B or Type 2 of
E1157 Specification for Sampling and Testing of Reusable
Specification E438.
Laboratory Glassware
4.2 Annealing—Maximum residual stress shall be such as to
conform to Specification E671.
3. Classification
3.1 There shall be four types of laboratory glass funnels
5. Design
further divided into classes.
5.1 Bowl—The inner wall of the bowl shall diverge from the
3.1.1 Type1—Commonlaboratoryfunnelwithsmoothinner
stem at an angle of 30 6 1.2°. The bowl shall be securely
surface, divided into the following three classes:
sealed to the stem. The axis of the funnel bowl shall coincide
3.1.1.1 Class A, (short stem)—Sizes 25, 35, 45, 55, 65, 75,
with the stem axis and the rim shall be perpendicular to this
90, 100, 125, and 150-mm diameters.
axis. The edge of the rim shall be mold finish, beaded or
3.1.1.2 Class B, (long stem)—Sizes 35, 45, 50, 55, 65, 75,
ground to a horizontal surface, as specified.
90, 100, 125, 150, 200, 250, and 300-mm diameters.
5.1.1 Type 1—Bowl of common funnels shall be plain.
3.1.1.3 Class C, (without stem)—Sizes 50, 75, and 100-mm
5.1.2 Type 1, Class C—Bottom of bowl shall be ground flat.
diameters.
5.1.3 Type 2—Bowl of fluted funnels shall have an inner
wall with 8 equally spaced small grooves or depressions that
1 1
This specification is under the jurisdiction of ASTM Committee E41 on
shall extend upward from the inner bottom zone of the bowl ⁄2
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
5
to ⁄8 times the inner bowl depth.
Apparatus.
5.1.4 Type 3—Bowl of ribbed funnel shall have an inner
Current edition approved Sept. 1, 2010. Published September 2010. Originally
wall with raised ribs spaced at the rim approximately 15 mm
approved in 1986. Last previous edition approved in 2005 as E1095 – 99 (2005).
DOI: 10.1520/E1095-99R10.
apart.Alternate ribs shall extend to within approximately 6 mm
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
of the junction of the bowl and the stem, and the others to
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
within approximately 19 mm of this junction. Ribbed funnels
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. may also have ribs on the outer bowl surface or stem, or both.
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E1095−99 (2010)
TABLE 1 Dimensions
Stem Length Stem Outer Diameter
Nominal Body Stem Wall
Types 1, 2, 3
Inner Wall Type 4 Types 1, 2, 3 Type 4 Thickness
±5mm
Diameter Thickness ±10mm max, (mm) max, (mm) min, (mm)
Bowl min,
Class A Class B
Top, (mm) (mm)
25 1 40 . . 7 . 0.8
35 1 50 150 . 7 . 0.8
45 1 50 150 . 7 . 1
50 1 65 150 . 8 . 1
55 1 65 150 . 8 . 1.3
...