ASTM E1377-99

Standard Specification for Laboratory Glass Kjeldahl Flasks

SCOPE
1.1 This specification provides standard dimensional requirements for glass Kjeldahl flasks for nitrogen digestion analysis.

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 E1377-99(2005) - Standard Specification for Laboratory Glass Kjeldahl Flasks
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 1377 – 99
Standard Specification for
Laboratory Glass Kjeldahl Flasks
This standard is issued under the fixed designation E 1377; 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.
NOTE 1—The term millilitre (mL) is commonly used as a special name
1. Scope
for the cubic centimetre (cm ) and similarly the litre (L) for 1000 cubic
1.1 This specification provides standard dimensional re-
centimetres, in accordance with the International System of Units (SI).
quirements for glass Kjeldahl flasks for nitrogen digestion
analysis.
4. Material and Annealing
4.1 Flasks shall be made of borosilicate glass conforming to
2. Referenced Documents
the requirement of Type I, Class A of Specification E 438.
2.1 ASTM Standards:
4.2 Maximum residual thermal stress shall conform to
E 147 Specification for Apparatus for Microdetermination
Specification E 671.
of Nitrogen by Kjeldahl Method
E 438 Specification for Glasses in Laboratory Apparatus 5. Appearance
E 671 Specification for Maximum Permissible Thermal Re-
5.1 The general appearance of the flasks shall conform to
sidual Stress in Annealed Glass Laboratory Apparatus
Fig. 1.
E 694 Specification for Volumetric Ware
E 920 Specification for Commercially Packaged Laboratory 6. Design
Apparatus
6.1 Necks on all flasks shall be circular in cross section, and
E 921 Specification for Export Packaged Laboratory Appa-
shall be perpendicular to center of flask body.
ratus
6.2 Top finish of flask shall not be belled over 2 in. from the
E 1133 Practice for PerformanceTesting of Packaged Labo-
top. Top shall be tooled or beaded.
ratory Apparatus for United States Government Procure-
6.3 Interior neck finish of sizes 500 and 800 mL may be
ments
tooled to accept special rubber stopper especially made for
E 1157 Specification for Sampling and Testing of Reusable
Kjeldahl flasks.
Laboratory Glassware
6.4 Bottom of flask shall be hemispherical in shape, while
top has a curved taper to point of junction with the flask neck.
3. Classification
(See Fig. 1.)
3.1 Ungraduated Flasks, Type I, shall be of the following
6.5 Wall thickness of flasks shall be controlled in accor-
capacities:
dance with Table 1.
100 mL
300 mL 7. Volumetric Accuracy
500 mL
7.1 Tolerance on volumetric accuracy of Type II flasks shall
650 mL
be in compliance with Specification E 694 (10006 1.5 mL).
800 mL
8. Capacity and Dimensions
3.1.1 Sizes 10 mLand 30 mLand the Soltys style 30 mLare
covered under Specification E 147 and are not included herein.
8.1 The nominal capacity of the ungraduated, Type I flasks
...