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
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.
2.1 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
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. 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 standard’s Document Summary page on
10.1520/C0612-14R19. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C612−14 (2019)
A
TABLE 1 Physical Property Requirements
Type V
Properties Type IA Type IB Type II Type III Type IVA Type IVB
Grade A and B
B
Maximum use temperature °F (°C) 450 (232) 450 (232) 850 (454) 1000 (538) 1200 (649) 1200 (649) 1800 (982)
Apparent thermal conductivity, max,
Btu in./h ft °F (W/m K)
Mean temperatures °F (°C)
25 (-4) 0.22 (0.032) 0.21 (0.030) 0.21 (0.030) 0.21 (0.030) 0.21 (0.030) 0.23 (0.033) 0.44 (0.063)
75 (24) 0.26 (0.037) 0.26 (0.037) 0.25 (0.036) 0.25 (0.036) 0.25 (0.036) 0.24 (0.035) 0.45 (0.064)
100 (38) 0.28 (0.040) 0.27 (0.039) 0.27 (0.039) 0.27 (0.039) 0.27 (0.039) 0.25 (0.036) 0.45 (0.064)
200 (93) 0.36 (0.052) 0.34 (0.049) 0.35 (0.050) 0.35 (0.050) 0.34 (0.049) 0.30 (0.043) 0.47 (0.068)
300 (149) 0.46 (0.066) 0.42 (0.060) 0.44 (0.063) 0.44 (0.063) 0.44 (0.063) 0.36 (0.052) 0.49 (0.071)
400 (204) 0.55 (0.079) 0.55 (0.079) 0.55 (0.079) 0.42 (0.061) 0.52 (0.075)
500 (260) 0.70 (0.101) 0.70 (0.101) 0.70 (0.101) 0.53 (0.076) 0.55 (0.080)
600 (316) 0.90 (0.130) 0.85 (0.123) 0.63 (0.091) 0.59 (0.085)
700 (371) 1.00 (0.144) 0.75 (0.108) 0.63 (0.091)
800 (427) 0.67 (0.097)
Minimum Compressive resistance at
10 % deformation, min, lb/ft (kPa)
Category I no compressive resistance requirement
C
Category 2 N. A. 25 (1.2) 25 (1.2) 12 (0.6) 50 (2.4) 50 (2.4) 1000 (48)
Linear shrinkage, at maximum use 2.0 2.0 2.0 2.0 2.0 2.0 4.0
temperature, %
Water vapor sorption, max, % 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Surface burning characteristics:
Flame spread index, max 25 25 25 25 25 25 25
Smoke developed, max 50 50 50 50 50 50 50
A
Refer to Section 7 for additional physical property requirements.
B
See Warning in 6.2.1.
C
N. A. indicates not applicable.
C1045 Practice for Calculating Thermal Transmission Prop- 3.2 Definitions of Terms Specific to This Standard:
erties Under Steady-State Conditions 3.2.1 delivered thickness—the actual thickness of the prod-
C1058 Practice for Selecting Temperatures for Evaluating uct shipped by the manufacturer or the seller and received by
and Reporting Thermal Properties of Thermal Insulation the purchaser.
C1101/C1101M Test Methods for Classifying the Flexibility
3.2.2 mean temperature—the sum of the cold surface tem-
or Rigidity of Mineral Fiber Blanket and Board Insulation
perature and the hot surface temperature divided by two.
C1104/C1104M Test Method for Determining the Water
3.2.3 shot—is defined, for the purposes of this specification,
Vapor Sorption of Unfaced Mineral Fiber Insulation
as that material which cannot be brushed or mechanically
C1114 Test Method for Steady-State Thermal Transmission
shaken through No. 100 (150-µm) sieve.
Properties by Means of the Thin-Heater Apparatus
C1136 Specification for Flexible, Low Permeance Vapor
4. Classification
Retarders for Thermal Insulation
4.1 Mineral fiber board insulation covered by this specifi-
C1304 Test Method for Assessing the Odor Emission of
cation shall be classified into seven types with two grades for
Thermal Insulation Materials
Type V and two categories, shown in Table 1. This classifica-
C1335 Test Method for Measuring Non-Fibrous Content of
tion is based upon the maximum use temperature, maximum
Man-Made Rock and Slag Mineral Fiber Insulation
apparent thermal conductivity, minimum compressive
C1338 Test Method for Determining Fungi Resistance of
resistance, maximum linear shrinkage, maximum water vapor
Insulation Materials and Facings
sorption, and maximum surface burning characteristics for the
C1617 Practice for Quantitative Accelerated Laboratory
insulations.
Evaluation of Extraction Solutions Containing Ions
4.1.1 Category 1—No compressive resistance (load-
Leached from Thermal Insulation on Aqueous Corrosion
bearing) properties are required.
of Metals
4.1.2 Category 2—Minimum compressive resistance (load-
E84 Test Method for Surface Burning Characteristics of
bearing) properties are required.
Building Materials
4.1.3 Type V, Grade A—Requires no heat-up schedule.
2.2 Other Referenced Document:
4.1.4 Type V, Grade B—Heat-up schedule is required.
CAN/ULC-S102 Standard Method of Test for Surface Burn-
Warning—Grade B may not be suitable for applications
ing Characteristics of Building Materials andAssemblies
requiring hot installation capability at the maximum tempera-
3. Terminology
ture indicated. In general, products having a Grade B designa-
tion are designed to be used with a heat-up schedule. Failure to
3.1 Defintions—For definitions used in this specification,
use a heat-up schedule with Grade B products may lead to an
refer toTerminology C168.
exothermic reaction. This is dependent on thickness and
temperature. Consult the manufacturer or manufacturer’s lit-
Available from Underwriters Laboratories of Canada, 7 Crouse Road,
Scarborough, Ontario, Canada M1R 3A9. erature for special heat rate considerations.
C612−14 (2019)
5. Ordering Information facing and adhesive) when a facing is factory adhered by the
manufacturer or the fabricator. (Warning—There are adhe-
5.1 The type, category, grade for Type V, and dimensions
sives that can cause corrosion to steel when they are in contact
shall be specified by the purchaser.
with water or water vapor and the steel. Currently, there is not
a test method available to satisfy every potential corrosion
6. Materials and Manufacture
application.)
6.1 Composition—Mineral fiber block and semi-rigid and
7.3.1 The use of Practice C1617 is an acceptable alternative
rigid board insulation shall be composed of rock, slag, or glass
to the test procedure in 7.3, with the mass loss corrosion rate of
processed from the molten state into fibrous form and bonded
steel test sample exposed to the unfaced insulation extract not
withanorganicorinorganicbindersorboth.Asbestosshallnot
to exceed that of the 5 ppm chloride solution.
be used as an ingredient or component part of the product.
7.4 Stress Corrosion to Austenitic Stainless Steel—When
6.2 Facings:
specified, shall be tested and evaluated in accordance with
6.2.1 The purchaser shall specify whether the insulation
12.10.
shall be supplied plain or with facings and, if faced, shall
specify the type and its requirements. (Warning—The user is
7.5 Semi-rigid or Rigid—When tested and evaluated at its
advised that it is possible that the maximum use temperature of
delivered thickness in accordance with 12.11, all mineral fiber
facings and adhesives is lower than the maximum use tempera-
(rock, slag, and glass) board and block must qualify to be
ture of the insulation. The user shall ensure that sufficient
semi-rigid or rigid.
thickness shall be installed so none of these accessory items
7.6 Non-Fibrous (Shot) Content—The averaged maximum
(facings and adhesives) are exposed to temperatures above
shot content of rock or slag mineral fiber products, Types IA
their maximum use temperature.)
through IVB as shown in Table 1, shall not exceed 25 % by
6.2.2 The vapor retarder facings shall be in accordance with
weight as defined in 12.2. Type V products contain other
Specification C1136.
ingredients which invalidates the way shot content is deter-
6.2.3 Typical facings are as follows (others are available):
mined. Non-fibrous content is not applicable to glass mineral
6.2.3.1 Aluminum foil, reinforced fiberglass scrim, and
fiber products.
natural (brown) kraft paper laminate (facing) is known as FRK
or FSK.
7.7 Maximum Use Temperature—Shall be tested in accor-
6.2.3.2 White kraft paper, reinforced fiberglass scrim, and
dance with 12.1, the board and block insulation shall not warp,
aluminum foil laminate (facing) is known as ASJ (All Service
flame, or glow during hot surface exposure. No evidence of
Jacket).
melting or fiber degradation shall be evident upon posttest
6.2.3.3 Aluminum foil, reinforced fiberglass scrim, and
inspection.
plastic film (example: polyethylene) laminate (facing) is
7.8 Maximum Exothermic Temperature Rise—Shall be
known as FSP (Foil-Scrim-Polyethylene).
tested in accordance with 12.1, the internal temperature shall
6.2.3.4 Aluminum foil, and
not at any time exceed the hot surface temperature by more
6.2.3.5 Vinyl film.
than200°F(111°C).The200°Fcriterionappliesduringheat-up
as well as steady state conditions. Exceeding this limit consti-
7. Physical Properties
tutes noncompliance to this specification and rejection.
7.1 The insulation type shall conform to the following
7.9 Fungi Resistance—Shall be tested in accordance with
requirements in Table 1: maximum use temperature, apparent
12.12; growth no greater than that on a comparative item
thermal conductivity, compressive resistance, linear shrinkage,
(white birch wood) shall be considered to have passed the test
water vapor sorption, and surface burning characteristics.
method criteria.
7.1.1 Apparent Thermal Conductivity—Test in accordance
with 12.3.
8. Qualification Requirements
7.1.2 Compressive Resistance—Test in accordance with
12.4.
8.1 The following requirements shall be employed for the
7.1.3 Linear Shrinkage—Test in accordance to 12.5.
purpose of initial product qualification:
7.1.4 Water Vapor Sorption—Test in accordance with 12.6.
8.1.1 Maximum use temperature,
7.1.5 Surface Burning Characteristics—Test in accordance
8.1.2 Apparent thermal conductivity,
with 12.7.
8.1.3 Compressive resistance,
7.2 Odor Emission—A detectable odor of objectionable
8.1.4 Linear shrinkage,
nature recorded by more than two of five panel members shall
8.1.5 Water vapor sorption,
constitute rejection of the material when tested in accordance
8.1.6 Surface burning characteristics,
with 12.8.
8.1.7 Odor emission,
7.3 Corrosiveness to Steel—When tested and evaluated in
8.1.8 Corrosiveness,
accordance with Specification C665 in 12.9, the corrosion
8.1.9 Rigidity, and
resulting from insulation in co
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.