ASTM C612-14(2019)
(Specification)Standard Specification for Mineral Fiber Block and Board Thermal Insulation
Standard Specification for Mineral Fiber Block and Board Thermal Insulation
ABSTRACT
This specification covers mineral fiber block and board thermal insulation. Mineral fiber board insulation covered by this specification shall be classified into types and categories; category 1 - no compressive resistance properties are required, category 2 - minimum compressive resistance properties are required, type V, grade A - requires no heat-up schedule, type V, grade B - heat-up schedule is required. Mineral fiber block and semi-rigid and rigid board insulation shall be composed of rock, slag, or glass processed from the molten state into fibrous form and bonded with organic or inorganic binders or both. A detectable odor of objectionable nature recorded by more than two of five panel members shall constitute rejection. When tested and evaluated, the corrosion resulting from insulation in contact with steel plates shall be judged to be no greater than for comparative plates in contact with sterile cotton. When tested and evaluated at its delivered thickness, all mineral fiber (rock, slag, and glass) board and block must qualify to be semi-rigid or rigid. When tested, the board and block insulation shall not warp, flame, or glow during hot surface exposure. When tested, the midpoint temperature shall not at any time exceed the hot surface temperature by more than 200°F (111°C). Determine the thermal conductivity as a function of temperature for the representative specimens with data obtained from a series of thermal tests. The compressive resistance, linear shrinkage, water vapour sorption, odor emission, and rigidity or semi-rigidity shall be tested to meet the requirements prescribed.
SCOPE
1.1 This specification covers the classification, composition, dimension, and physical properties of mineral fiber (rock, slag, or glass) semi-rigid and rigid board intended for the use as thermal insulation on surfaces operating at temperatures between 0°F (-18°C) and 1800°F (982°C). For specific applications, the actual temperature limits shall be agreed upon between the supplier and the purchaser.
1.2 For satisfactory performance, properly installed protective vapor retarder or barriers shall be used on below ambient temperature applications to reduce movement of water through or around the insulation towards the colder surface. Failure to use a vapor retarder or barrier can lead to insulation and system damage. Refer to Practice C921 to aid material selection. Although vapor retarder properties are not part of this specification, properties required in Specification C1136 are pertinent to applications or performance.
1.3 The orientation of the fibers within the boards 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).
1.4 This standard does not purport to provide the performance requirements of hourly-rated fire systems. Consult the manufacturer for the appropriate system.
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, 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
Relations
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:C612 −14 (Reapproved 2019)
Standard Specification for
1
Mineral Fiber Block and Board Thermal Insulation
This standard is issued under the fixed designation C612; 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 1.7 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 Thisspecificationcoverstheclassification,composition,
ization established in the Decision on Principles for the
dimension, and physical properties of mineral fiber (rock, slag,
Development of International Standards, Guides and Recom-
or glass) semi-rigid and rigid board intended for the use as
mendations issued by the World Trade Organization Technical
thermal insulation on surfaces operating at temperatures be-
Barriers to Trade (TBT) Committee.
tween 0°F (-18°C) and 1800°F (982°C). For specific
applications, the actual temperature limits shall be agreed upon
2. Referenced Documents
between the supplier and the purchaser.
2
2.1 ASTM Standards:
1.2 For satisfactory performance, properly installed protec-
C165 Test Method for Measuring Compressive Properties of
tive vapor retarder or barriers shall be used on below ambient
Thermal Insulations
temperature applications to reduce movement of water through
C168 Terminology Relating to Thermal Insulation
or around the insulation towards the colder surface. Failure to
C177 Test Method for Steady-State Heat Flux Measure-
useavaporretarderorbarriercanleadtoinsulationandsystem
ments and Thermal Transmission Properties by Means of
damage. Refer to Practice C921 to aid material selection.
the Guarded-Hot-Plate Apparatus
Although vapor retarder properties are not part of this
C303 Test Method for Dimensions and Density of Pre-
specification, properties required in Specification C1136 are
formed Block and Board–Type Thermal Insulation
pertinent to applications or performance.
C356 Test Method for Linear Shrinkage of Preformed High-
1.3 The orientation of the fibers within the boards is
Temperature Thermal Insulation Subjected to Soaking
primarily parallel to the principal surface (face). This specifi- Heat
cation does not cover fabricated pipe and tank wrap insulation
C390 Practice for Sampling and Acceptance of Thermal
where the insulation has been cut and fabricated to provide a
Insulation Lots
fiber orientation that is perpendicular to the surface (face).
C411 Test Method for Hot-Surface Performance of High-
Temperature Thermal Insulation
1.4 This standard does not purport to provide the perfor-
C447 Practice for Estimating the Maximum Use Tempera-
mance requirements of hourly-rated fire systems. Consult the
ture of Thermal Insulations
manufacturer for the appropriate system.
C518 Test Method for Steady-State Thermal Transmission
1.5 The values stated in inch-pound units are to be regarded
Properties by Means of the Heat Flow Meter Apparatus
as standard. The values given in parentheses are mathematical
C665 Specification for Mineral-Fiber Blanket Thermal Insu-
conversions to SI units that are provided for information only
lation for Light Frame Construction and Manufactured
and are not considered standard.
Housing
1.6 This standard does not purport to address all of the
C680 Practice for Estimate of the Heat Gain or Loss and the
safety concerns, if any, associated with its use. It is the
Surface Temperatures of Insulated Flat, Cylindrical, and
responsibility of the user of this standard to establish appro-
Spherical Systems by Use of Computer Programs
priate safety, health, and environmental practices and deter-
C795 Specification for Thermal Insulation for Use in Con-
mine the applicability of regulatory limitations prior to use.
tact with Austenitic Stainless Steel
C921 Practice for Determining the Properties of Jacketing
Materials for 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
2
Homogeneous Inorganic Thermal Insulations. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2019. Published October 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1967. Last previous edition approved in 2014 as C612 – 14. DOI: Standards volume information, refer to the sta
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