ASTM E144-14e1
(Practice)Standard Practice for Safe Use of Oxygen Combustion Vessels
Standard Practice for Safe Use of Oxygen Combustion Vessels
ABSTRACT
This practice covers methods for judging the soundness of new and used oxygen combustion bombs, and describes the precautions to be observed in oxygen bomb combustion methods. This practice is applicable to all procedures in which samples are completely oxidized by combustion in a metal bomb containing oxygen under pressure. Hydrostatic test and proof test shall be performed. The following precautions shall be observed in all oxygen bomb combustion methods: sample weight; oxygen filling system; ignition system; and safety barricade.
SCOPE
1.1 This practice covers methods for judging the soundness of new and used oxygen combustion vessels, and describes the precautions to be observed in oxygen combustion vessel methods.
1.2 This practice is applicable to all procedures in which samples are completely oxidized by combustion in a metal vessel containing oxygen under pressure. Where there is conflict with specific precautions in individual ASTM methods, the latter shall take precedence.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Designation: E144 − 14
Standard Practice for
1
Safe Use of Oxygen Combustion Vessels
This standard is issued under the fixed designation E144; 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
ε NOTE—The responsible subcommittee was updated editorially in November 2019.
1. Scope* 2.2 Periodic Inspection—All seals and other parts that are
recommended by the manufacturer shall be replaced or re-
1.1 This practice covers methods for judging the soundness
newed after each 5000 firing or at a more frequent interval if
of new and used oxygen combustion vessels, and describes the
the seals or other parts show evidence of deterioration. The
precautions to be observed in oxygen combustion vessel
hydrostatic and proof tests described in Sections 3 and 4 shall
methods.
be repeated if any of the following have occurred:
1.2 This practice is applicable to all procedures in which
2.2.1 Five thousand firings.
samples are completely oxidized by combustion in a metal
2.2.2 Firing with an excessive charge of either sample or
vessel containing oxygen under pressure. Where there is
oxygen.
conflictwithspecificprecautionsinindividualASTMmethods,
the latter shall take precedence. 2.2.3 Ignition of any internal part of the vessel, including
fuel capsule.
1.3 The values stated in inch-pound units are to be regarded
2.2.4 The evidence of corrosion or surface defects which
as standard. The values given in parentheses are mathematical
exceed 80 % of the manufacturer’s stated corrosion allowance
conversions to SI units that are provided for information only
for the vessel.
and are not considered standard.
2.2.5 Any change in thread tolerances of vessel enclosures
1.4 This standard does not purport to address all of the
which exceed the manufacturer’s specifications.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Hydrostatic Test
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
3.1 Fill the vessel with water at room temperature and
1.5 This international standard was developed in accor-
connect to a suitable hydraulic pressure system. Be sure that all
dance with internationally recognized principles on standard-
air has been displaced from the vessel and from the connecting
ization established in the Decision on Principles for the
gas passages. Support the vessel so that the diameter at the
Development of International Standards, Guides and Recom-
midsection of the cylinder can be measured with a micrometer
mendations issued by the World Trade Organization Technical
caliper, and the deflection at the center point of the bottom can
Barriers to Trade (TBT) Committee.
be measured with a micrometer dial indicator. Apply water
pressure which is 1.5 times the manufacturer’s recommended
2. Physical Requirements
working pressure test pressure of the vessel and check the
2.1 Initial Test—The manufacturer of oxygen combustion
vessel and pressure connections for leaks.
vessels for use inASTM test methods shall furnish a certificate
3.2 With the hydraulic system at atmospheric pressure,
with each new vessel showing that it has satisfactorily passed
measure the diameter at the midsection of the cylinder and
the hydrostatic and proof tests described in Sections 3 and 4.
obtain a zero reading for the dial indicator in contact with the
When requested, the manufacturer shall supply evidence that
center point of the bottom of the vessel. Raise the hydrostatic
the vessel is designed and constructed in accordance with
pressure to test pressure and repeat these measurements, then
recognized practices for pressure vessel equipment.
release the pressure and take a third set of measurements with
the system at atmospheric pressure. If the application of test
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pressure produces a deflection greater than 0.005 in.
This practice is under the jurisdiction ofASTM Committee E41 on Laboratory
Apparatus and is the direct responsibility of Subcommittee E41.06 on Laboratory
(0.127 mm) at the midsection of the cylinder or at the center
Instruments and Equipment.
point of the bottom of the vessel, or if any of the vessel parts
Current edition approved Dec. 1, 2014. Published January 2015. Originally
do not resume their original dimensions when pressure is
approved in 1959. Last previous edition approved in 2011 as E144 – 94 (2011).
DOI: 10.1520/E0144-14. released, reject the vessel as unsafe.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO
...
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.
´1
Designation: E144 − 14 E144 − 14
Standard Practice for
1
Safe Use of Oxygen Combustion Vessels
This standard is issued under the fixed designation E144; 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
ε NOTE—The responsible subcommittee was updated editorially in November 2019.
1. Scope*
1.1 This practice covers methods for judging the soundness of new and used oxygen combustion vessels, and describes the
precautions to be observed in oxygen combustion vessel methods.
1.2 This practice is applicable to all procedures in which samples are completely oxidized by combustion in a metal vessel
containing oxygen under pressure. Where there is conflict with specific precautions in individual ASTM methods, the latter shall
take precedence.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Physical Requirements
2.1 Initial Test—The manufacturer of oxygen combustion vessels for use in ASTM test methods shall furnish a certificate with
each new vessel showing that it has satisfactorily passed the hydrostatic and proof tests described in Sections 3 and 4. When
requested, the manufacturer shall supply evidence that the vessel is designed and constructed in accordance with recognized
practices for pressure vessel equipment.
2.2 Periodic Inspection—All seals and other parts that are recommended by the manufacturer shall be replaced or renewed after
each 5000 firing or at a more frequent interval if the seals or other parts show evidence of deterioration. The hydrostatic and proof
tests described in Sections 3 and 4 shall be repeated if any of the following have occurred:
2.2.1 Five thousand firings.
2.2.2 Firing with an excessive charge of either sample or oxygen.
2.2.3 Ignition of any internal part of the vessel, including fuel capsule.
2.2.4 The evidence of corrosion or surface defects which exceed 80 % of the manufacturer’s stated corrosion allowance for the
vessel.
2.2.5 Any change in thread tolerances of vessel enclosures which exceed the manufacturer’s specifications.
3. Hydrostatic Test
3.1 Fill the vessel with water at room temperature and connect to a suitable hydraulic pressure system. Be sure that all air has
been displaced from the vessel and from the connecting gas passages. Support the vessel so that the diameter at the midsection
of the cylinder can be measured with a micrometer caliper, and the deflection at the center point of the bottom can be measured
with a micrometer dial indicator. Apply water pressure which is 1.5 times the manufacturer’s recommended working pressure test
pressure of the vessel and check the vessel and pressure connections for leaks.
1
This practice is under the jurisdiction of ASTM Committee E41 on Laboratory Apparatus and is the direct responsibility of Subcommittee E41.01E41.06 on
ApparatusLaboratory Instruments and Equipment.
Current edition approved Dec. 1, 2014. Published January 2015. Originally approved in 1959. Last previous edition approved in 2011 as E144 – 94 (2011). DOI:
10.1520/E0144-14.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E144 − 14
3.2 With the hydraulic system at atmospheric pressure, measure the diameter at the midsection of the cylinder and obtain a zero
reading for the dial indicator in contact with the center point of the bottom of the vessel. Raise the hydrostatic pressure to test
p
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