ASTM C155-97(2018)
(Classification)Standard Classification of Insulating Firebrick
Standard Classification of Insulating Firebrick
SIGNIFICANCE AND USE
3.1 This classification establishes an orderly grouping of insulating firebrick to provide group identifications for use by those producing or purchasing these materials. The group identification number is not meant to specifically designate the maximum service temperature, although the number times 100 does approximate the temperature (in degrees Fahrenheit) to be used to check the reheat change and can be used as a guide for relative temperature stability. The bulk density limits the weight per unit volume for any group as sold, but is not meant to be used for detailed engineering calculations.
SCOPE
1.1 This classification covers heat-insulating material known as insulating firebrick. This material is suitable for lining certain kinds of industrial furnaces.
Note 1: Insulating materials for use below 1000 °F (538 °C) are covered2 by ASTM Committee C16 on Thermal Insulation.
1.2 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.
1.3 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:C155 −97 (Reapproved 2018)
Standard Classification of
1
Insulating Firebrick
This standard is issued under the fixed designation C155; 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 identification number is not meant to specifically designate the
maximum service temperature, although the number times 100
1.1 This classification covers heat-insulating material
does approximate the temperature (in degrees Fahrenheit) to be
known as insulating firebrick. This material is suitable for
used to check the reheat change and can be used as a guide for
lining certain kinds of industrial furnaces.
relative temperature stability. The bulk density limits the
NOTE 1—Insulating materials for use below 1000 °F (538 °C) are
weight per unit volume for any group as sold, but is not meant
2
covered by ASTM Committee C16 on Thermal Insulation.
to be used for detailed engineering calculations.
1.2 The values stated in inch-pound units are to be regarded
4. Basis of Classification
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
4.1 The classification of insulating firebrick in accordance
and are not considered standard.
with Table 1 is based on bulk density (weight per cubic foot)
1.3 This international standard was developed in accor- and the behavior in the reheat change test conducted at the
dance with internationally recognized principles on standard- specified temperature.
ization established in the Decision on Principles for the
5. Test Methods
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
5.1 The properties enumerated in this classification shall be
Barriers to Trade (TBT) Committee.
determined in accordance with the following ASTM test
methods:
2. Referenced Documents
5.1.1 Bulk Density—Test Methods C134.
2
2.1 ASTM Standards:
5.1.2 Reheat Change—Test Method C210. For the purpose
C134 Test Methods for Size, Dimensional Measurements,
of this classification, the percentage of reheat change shall be
and Bulk Density of Refractory Brick and Insulating
obtained from only the 9-in. (228-mm) dimension of the test
Firebrick
brick.
C210 TestMethodforReheatChangeofInsulatingFirebrick
6. Retests
3. Significance and Use
6.1 Because of variables resulting from sampling and the
3.1 This classification establishes an orderly grouping of
lack of satisfactory reproducibility in tests conducted by
insulating firebrick to provide group identifications for use by
different laboratories, the material may be resampled and
those producing or purchasing these materials. The group
retested when requested by either the manufacturer or the
purchase
...
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: C155 − 97 (Reapproved 2013) C155 − 97 (Reapproved 2018)
Standard Classification of
1
Insulating Firebrick
This standard is issued under the fixed designation C155; 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 classification covers heat insulating heat-insulating material known as insulating firebrick. This material is suitable for
lining certain kinds of industrial furnaces.
2
NOTE 1—Insulating materials for use below 1000°F (538°C)1000 °F (538 °C) are covered by ASTM Committee C-16C16 on Thermal Insulation.
1.2 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.
1.3 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. Referenced Documents
2
2.1 ASTM Standards:
C134 Test Methods for Size, Dimensional Measurements, and Bulk Density of Refractory Brick and Insulating Firebrick
C210 Test Method for Reheat Change of Insulating Firebrick
3. Significance and Use
3.1 This classification establishes an orderly grouping of insulating firebrick to provide group identifications for use by those
producing or purchasing these materials. The group identification number is not meant to specifically designate the maximum
service temperature, although the number times 100 does approximate the temperature (in degrees Fahrenheit) to be used to check
the reheat change and can be used as a guide for relative temperature stability. The bulk density limits the weight per unit volume
for any group as sold, but is not meant to be used for detailed engineering calculations.
4. Basis of Classification
4.1 The classification of insulating firebrick in accordance with Table 1 is based on bulk density (weight per cubic foot) and
the behavior in the reheat change test conducted at the specified temperature.
5. Test Methods
5.1 The properties enumerated in this classification shall be determined in accordance with the following ASTM test methods:
5.1.1 Bulk Density—Test Methods C134.
5.1.2 Reheat Change—Test Method C210. For the purpose of this classification, the percentage of reheat change shall be
obtained from only the 9-in. (228-mm) dimension of the test brick.
6. Retests
6.1 Because of variables resulting from sampling and the lack of satisfactory reproducibility in tests conduc
...
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