ASTM E1377-99(2016)

Standard Specification for Laboratory Glass Kjeldahl Flasks

ABSTRACT
This specification provides standard dimensional requirements for glass Kjeldahl flasks for nitrogen digestion analysis. The ungraduated flasks, Type I, and graduated flasks, Type II, shall conform to the specified capacities. Flasks shall be made of borosilicate glass, conforming to the required maximum residual stress, tolerance of volumetric accuracy, and dimensions.
SCOPE
1.1 This specification provides standard dimensional requirements for glass Kjeldahl flasks for nitrogen digestion analysis.

General Information

• Status: Historical
• Publication Date: 31-Aug-2016
• ICS: 71.040.20 - Laboratory ware and related apparatus
• Technical Committee: E41 - Laboratory Apparatus
• Drafting Committee: E41.01 - Laboratory Ware and Supplies

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E1377 −99 (Reapproved 2016)
Standard Specification for
1
Laboratory Glass Kjeldahl Flasks
This standard is issued under the fixed designation E1377; 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 3.2 Graduated Flasks, Type II, shall be of the following
capacity:
1.1 This specification provides standard dimensional re-
800 mL, graduated at 1000 mL
quirements for glass Kjeldahl flasks for nitrogen digestion
analysis.
NOTE 1—The term millilitre (mL) is commonly used as a special name
3
for the cubic centimetre (cm ) and similarly the litre (L) for 1000 cubic
centimetres, in accordance with the International System of Units (SI).
2. Referenced Documents
2
2.1 ASTM Standards:
4. Material and Annealing
E147 Specification forApparatus for Microdetermination of
4.1 Flasks shall be made of borosilicate glass conforming to
Nitrogen by Kjeldahl Method
the requirement of Type I, Class A of Specification E438.
E438 Specification for Glasses in Laboratory Apparatus
E671 Specification for Maximum Permissible Thermal Re-
4.2 Maximum residual thermal stress shall conform to
sidual Stress in Annealed Glass Laboratory Apparatus
Specification E671.
E694 Specification for Laboratory Glass Volumetric Appa-
ratus
5. Appearance
E920 Specification for Commercially Packaged Laboratory
5.1 The general appearance of the flasks shall conform to
Apparatus
Fig. 1.
E921 Specification for Export Packaged Laboratory Appa-
ratus
6. Design
E1133 Practice for Performance Testing of Packaged Labo-
6.1 Necks on all flasks shall be circular in cross section, and
ratory Apparatus for United States Government Procure-
shall be perpendicular to center of flask body.
ments
E1157 Specification for Sampling and Testing of Reusable
6.2 Top finish of flask shall not be belled over 2 in. from the
Laboratory Glassware
top. Top shall be tooled or beaded.
6.3 Interior neck finish of sizes 500 and 800 mL may be
3. Classification
tooled to accept special rubber stopper especially made for
3.1 Ungraduated Flasks, Type I, shall be of the following
Kjeldahl flasks.
capacities:
6.4 Bottom of flask shall be hemispherical in shape, while
100 mL
top has a curved taper to point of junction with the flask neck.
300 mL
(See Fig. 1.)
500 mL
650 mL
6.5 Wall thickness of flasks shall be controlled in accor-
800 mL
dance with Table 1.
3.1.1 Sizes 10 mLand 30 mLand the Soltys style 30 mLare
covered under Specification E147 and are not included herein. 7. Volumetric Accuracy
7.1 Tolerance on volumetric accuracy of Type II flasks shall
be in compliance with Specification E694 (1000 6 1.5 mL).
1
This specification is under the jurisdiction of ASTM Committee E41 on
Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
Laboratory Ware and Supplies.
8. Capacity and Dimensions
Current edit
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E1377 − 99 (Reapproved 2010) E1377 − 99 (Reapproved 2016)
Standard Specification for
1
Laboratory Glass Kjeldahl Flasks
This standard is issued under the fixed designation E1377; 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
1.1 This specification provides standard dimensional requirements for glass Kjeldahl flasks for nitrogen digestion analysis.
2. Referenced Documents
2
2.1 ASTM Standards:
E147 Specification for Apparatus for Microdetermination of Nitrogen by Kjeldahl Method
E438 Specification for Glasses in Laboratory Apparatus
E671 Specification for Maximum Permissible Thermal Residual Stress in Annealed Glass Laboratory Apparatus
E694 Specification for Laboratory Glass Volumetric Apparatus
E920 Specification for Commercially Packaged Laboratory Apparatus
E921 Specification for Export Packaged Laboratory Apparatus
E1133 Practice for Performance Testing of Packaged Laboratory Apparatus for United States Government Procurements
E1157 Specification for Sampling and Testing of Reusable Laboratory Glassware
3. Classification
3.1 Ungraduated Flasks, Type I, shall be of the following capacities:
100 mL
300 mL
500 mL
650 mL
800 mL
3.1.1 Sizes 10 mL and 30 mL and the Soltys style 30 mL are covered under Specification E147 and are not included herein.
3.2 Graduated Flasks, Type II, shall be of the following capacity:
800 mL, graduated at 1000 mL
3
NOTE 1—The term millilitre (mL) is commonly used as a special name for the cubic centimetre (cm ) and similarly the litre (L) for 1000 cubic
centimetres, in accordance with the International System of Units (SI).
4. Material and Annealing
4.1 Flasks shall be made of borosilicate glass conforming to the requirement of Type I, Class A of Specification E438.
4.2 Maximum residual thermal stress shall conform to Specification E671.
5. Appearance
5.1 The general appearance of the flasks shall conform to Fig. 1.
6. Design
6.1 Necks on all flasks shall be circular in cross section, and shall be perpendicular to center of flask body.
6.2 Top finish of flask shall not be belled over 2 in. from the top. Top shall be tooled or beaded.
1
This specification is under the jurisdiction of ASTM Committee E41 on Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01 on
ApparatusLaboratory Ware and Supplies.
Current edition approved Sept. 1, 2010Sept. 1, 2016. Published September 2010September 2016. Originally approved in 1990. Last previous edition approved in 20052010
as E1377 – 99 (2005).(2010). DOI: 10.1520/E1377-99R10.10.1520/E1377-99R16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Sum
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