ASTM C553-08

This document is not anASTM standard and is intended only to provide the user of anASTM 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.
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Designation:C553–02 Designation: C 553 – 08
Standard Specification for
Mineral Fiber Blanket Thermal Insulation for Commercial
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and Industrial Applications
This standard is issued under the fixed designation C 553; 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.
This standard has been approved for use by agencies of the Department of Defense.
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´ NOTE—Sections 2.2 and 11.4 were editorially updated in June 2008.
1. Scope
1.1 This specification covers the classification, composition, physical properties, and dimensions of mineral fiber (rock, slag,
or glass) blanket intended for use as thermal insulation on surfaces operating at temperatures below ambient or above ambient up
to between 0°F (-18°C) and 1200°F (649°C). For specific applications, the actual temperature limits shall be agreed upon between
the supplier and the purchaser.
1.2 The orientation of the fibers within the blanket is primarily parallel to the principal surface (face). This specification does
not cover fabricated pipe and tank wrap insulation where the insulation has been cut and fabricated to provide a fiber orientation
that is perpendicular to the surface (face).
1.3For satisfactory performance, properly installed protective vapor retarders must be used in low temperature (below ambient)
applications to prevent movement of water vapor through or around the insulation towards the colder surface.
1.3 For satisfactory performance, properly installed protective vapor retarders must be used in below ambient temperature
applications to reduce movement of water vapor through or around the insulation towards the colder surface. Failure to use a vapor
retarder can lead to insulation and system damage. Refer to Practice C 921 to aid material selection.Although vapor retarders are
not part of this specification, properties required in Specification C 1136 are pertinent to application or performance.
1.4 This standard does not purport to provide the performance requirements of hourly-rated fire systems. Consult the
manufacturer for the appropriate system.
1.5The values stated in inch-pound units shall be regarded as the standard. The System International (SI) equivalents of
inch-pound units are given in parentheses and are for information only and are approximate.
1.5 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.
1.6 This standard does not purport to address all of the safety concerns associated with its use. It is the responsibility of the
user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations
prior to use.
2. Referenced Documents
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2.1 ASTM Standards:
C 167 Test Methods for Thickness and Density of Blanket or Batt Thermal Insulations
C 168 Terminology Relating to Thermal Insulation
C 177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the
Guarded-Hot-Plate Apparatus
C 390 Practice for Sampling and Acceptance of Thermal Insulation Lots
C 411 Test Method for Hot-Surface Performance of High-Temperature Thermal Insulation
C 447 Practice for Estimating the Maximum Use Temperature of Thermal Insulations
C 518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
C 665 Specification for Mineral-Fiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing
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ThisspecificationisunderthejurisdictionofASTMCommitteeC16onThermalInsulationandisthedirectresponsibilityofSubcommitteeC16.23onBlanketandLoose
Fill Insulation.
Current edition approved Oct. 10, 2002. Published January 2003. Originally approved in 1964. Last previous edition approved 2001 as C553–01.
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Current edition approved Nov. 1, 2008. Published November 2008. Originally approved in 1964. Last previous edition approved 2002 as C 553 – 02 .
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For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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