ASTM C547-22a

Standard Specification for Mineral Fiber Pipe Insulation

ABSTRACT
This specification covers mineral fiber pipe insulation that are formed into hollow cylinders for standard pipe and tubing sizes. The pipe insulation may be molded or precision v-grooved with one or more walls split longitudinally and used up to a specified temperature. The materials are classified into five types according to the processing method used to form the material and the operating temperatures and into two grades according to heating requirements. The mineral fiber insulation should be manufactured from molten mineral substances such as rock, slag, or glass and processed into fibrous form using a binder, and adhesives when preferred. All products should conform to the required values of hot surface performance, non-fibrous content, use temperature, sag resistance, linear shrinkage, water vapor sorption, surface-burning characteristics, apparent thermal conductivity, and mean temperature.
SCOPE
1.1 This specification covers mineral fiber insulation produced to form hollow cylinders for standard pipe and tubing sizes. Use mineral fiber pipe insulation that has been either molded or precision v-grooved, with one or more walls split longitudinally for use on pipe temperatures up to 1400°F (760°C).  
1.2 For satisfactory performance, use properly installed protective vapor retarders or barriers on sub-ambient temperature applications to reduce movement of moisture through or around the insulation to the colder surface. Failure to use a vapor barrier can lead to insulation and system damage. Refer to Practice C921 to aid material selection.  
1.3 Flexible mineral fiber wrap products such as perpendicular-oriented fiber insulation rolls, non-precision or manually scored block or board, or flexible boards or blankets used as pipe insulation, are not covered by this specification.  
1.4 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.  
1.5 For Naval Sea Systems Command (NAVSEA) acceptance, materials must also comply with Supplemental Requirements. See Annex A1 of this standard.  
1.6 The following safety hazards caveat applies to the test methods portion, Section 11, only: 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.  
1.7 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.

General Information

• Status: Published
• Publication Date: 31-Aug-2022
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.20 - Homogeneous Inorganic Thermal Insulations

Standards Content (Sample)

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.
Designation:C547 −22a
Standard Specification for
1
Mineral Fiber Pipe Insulation
This standard is issued under the fixed designation C547; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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 U.S. Department of Defense.
1. Scope ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This specification covers mineral fiber insulation pro-
mendations issued by the World Trade Organization Technical
duced to form hollow cylinders for standard pipe and tubing
Barriers to Trade (TBT) Committee.
sizes. Use mineral fiber pipe insulation that has been either
molded or precision v-grooved, with one or more walls split
2. Referenced Documents
longitudinally for use on pipe temperatures up to 1400°F
2
2.1 ASTM Standards:
(760°C).
C167Test Methods forThickness and Density of Blanket or
1.2 For satisfactory performance, use properly installed
Batt Thermal Insulations
protective vapor retarders or barriers on sub-ambient tempera-
C168Terminology Relating to Thermal Insulation
ture applications to reduce movement of moisture through or
C177Test Method for Steady-State Heat Flux Measure-
around the insulation to the colder surface. Failure to use a
ments and Thermal Transmission Properties by Means of
vapor barrier can lead to insulation and system damage. Refer
the Guarded-Hot-Plate Apparatus
to Practice C921 to aid material selection.
C302Test Method for Density and Dimensions of Pre-
1.3 Flexible mineral fiber wrap products such as
formed Pipe-Covering-Type Thermal Insulation
perpendicular-oriented fiber insulation rolls, non-precision or C335/C335MTest Method for Steady-State Heat Transfer
manually scored block or board, or flexible boards or blankets
Properties of Pipe Insulation
used as pipe insulation, are not covered by this specification. C356Test Method for Linear Shrinkage of Preformed High-
Temperature Thermal Insulation Subjected to Soaking
1.4 The values stated in inch-pound units are to be regarded
Heat
as standard. The values given in parentheses are mathematical
C390Practice for Sampling and Acceptance of Thermal
conversions to SI units that are provided for information only
Insulation Lots
and are not considered standard.
C411Test Method for Hot-Surface Performance of High-
1.5 For Naval Sea Systems Command (NAVSEA)
Temperature Thermal Insulation
acceptance, materials must also comply with Supplemental
C447Practice for Estimating the Maximum Use Tempera-
Requirements. See Annex A1 of this standard.
ture of Thermal Insulations
1.6 The following safety hazards caveat applies to the test
C585Practice for Inner and Outer Diameters of Thermal
methods portion, Section 11, only: This standard does not
Insulation for Nominal Sizes of Pipe and Tubing
purport to address all of the safety concerns, if any, associated
C665Specification for Mineral-Fiber BlanketThermal Insu-
with its use. It is the responsibility of the user of this standard
lation for Light Frame Construction and Manufactured
to establish appropriate safety, health, and environmental
Housing
practices and determine the applicability of regulatory limita-
C680Practice for Estimate of the Heat Gain or Loss and the
tions prior to use.
Surface Temperatures of Insulated Flat, Cylindrical, and
1.7 This international standard was developed in accor-
Spherical Systems by Use of Computer Programs
dance with internationally recognized principles on standard-
C795Specification for Thermal Insulation for Use in Con-
tact with Austenitic Stainless Steel
1
This specification is under the jurisdiction of ASTM Committee C16 on
Thermal Insulation and is the direct responsibility of Subcommittee C16.20 on
2
Homogeneous Inorganic Thermal Insulations. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2022. Published October 2022. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1964. Last previous edition approved in 2022 as C547–22. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C0547-22A. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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C547−22a
C921Practice for Determining the Properties of Jacketing 4.1.5 Type
...

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: C547 − 22 C547 − 22a
Standard Specification for
1
Mineral Fiber Pipe Insulation
This standard is issued under the fixed designation C547; 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 U.S. Department of Defense.
1. Scope
1.1 This specification covers mineral fiber insulation produced to form hollow cylinders for standard pipe and tubing sizes. Use
mineral fiber pipe insulation that has been either molded or precision v-grooved, with one or more walls split longitudinally for
use on pipe temperatures up to 1400°F (760°C).
1.2 For satisfactory performance, use properly installed protective vapor retarders or barriers on sub-ambient temperature
applications to reduce movement of moisture through or around the insulation to the colder surface. Failure to use a vapor barrier
can lead to insulation and system damage. Refer to Practice C921 to aid material selection.
1.3 Flexible mineral fiber wrap products such as perpendicular-oriented fiber insulation rolls, non-precision or manually scored
block or board, or flexible boards or blankets used as pipe insulation, are not covered by this specification.
1.4 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.
1.5 For Naval Sea Systems Command (NAVSEA) acceptance, materials must also comply with Supplemental Requirements. See
Annex A1 of this standard.
1.6 The following safety hazards caveat applies to the test methods portion, Section 11, only: 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.
1.7 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:
C167 Test Methods for Thickness and Density of Blanket or Batt Thermal Insulations
C168 Terminology Relating to Thermal Insulation
1
This specification is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.20 on Homogeneous
Inorganic Thermal Insulations.
Current edition approved June 1, 2022Sept. 1, 2022. Published June 2022October 2022. Originally approved in 1964. Last previous edition approved in 20192022 as
C547 – 19.C547 – 22. DOI: 10.1520/C0547-22.10.1520/C0547-22A.
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 Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C547 − 22a
C177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the
Guarded-Hot-Plate Apparatus
C302 Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal Insulation
C335/C335M Test Method for Steady-State Heat Transfer Properties of Pipe Insulation
C356 Test Method for Linear Shrinkage of Preformed High-Temperature Thermal Insulation Subjected to Soaking Heat
C390 Practice for Sampling and Acceptance of Thermal Insulation Lots
C411 Test Method for Hot-Surface Performance of High-Temperature Thermal Insulation
C447 Practice for Estimating the Maximum Use Temperature of Thermal Insulations
C585 Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and Tubing
C665 Specification for Mineral-Fiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing
C680 Practice for Estimate of the Heat Gain or Loss and the Surface Temperatures of Insulated Flat, Cylindrical, and Spherical
Systems by U
...