ASTM C553 - 24 商业和工业应用矿物纤维毯绝热标准规范

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Designation: C553 −24
Standard Speciﬁcation for
Mineral Fiber Blanket Thermal Insulation for Commercial
and Industrial Applications
1
This standard is issued under the ﬁxed designation C553; 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 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 between 0°F (–18°C) and
1200°F (649°C). For speciﬁc applications, the actual tempera-
ture 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 speciﬁ-
cation 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).
1.3 For satisfactory performance, properly installed protec-
tive 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 C755 for considerations in the selection of
water vapor retarders and to Guide C1423 for speciﬁc guidance
in selecting jacketing materials. Although vapor retarders are
not part of this speciﬁcation, properties required in Speciﬁca-
tion C1136 are pertinent to application or performance.
1.4 This standard does not purport to provide the perfor-
mance 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 appro-
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.7 This international standard was developed in accor-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
2
C167 Test Methods for Thickness and Density of Blanket or
Batt Thermal Insulations
C168 Terminology Relating to Thermal Insulation
C177 Test Method for Steady-State Heat Flux Measure-
ments and Thermal Transmission Properties by Means of
the Guarded-Hot-Plate Apparatus
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 Tempera-
ture of Thermal Insulations
C518 Test Method for Steady-State Thermal Transmission
Properties by Means of the Heat Flow Meter Apparatus
C680 Practice for Estimate of the Heat Gain or Loss and the
Surface Temperatures of Insulated Flat, Cylindrical, and
Spherical Systems by Use of Computer Programs
C755 Practice for Selection of Water Vapor Retarders for
Thermal Insulation
C795 Speciﬁcation for Thermal Insulation for Use in Con-
tact with Austenitic Stainless Steel
C1045 Practice for Calculating Thermal Transmission Prop-
erties Under Steady-State Conditions
C1058 Practice for Selecting Temperatures for Evaluating
and Reporting Thermal Properties of Thermal Insulation
1
This speciﬁcation is under the jurisdiction of ASTM Committee C16 on
Thermal Insulation and is the direct responsibility of Subcommittee C16.23 on
Blanket and Loose Fill Insulation.
Current edition approved Oct. 1, 2024. Published October 2024. Originally
approved in 1964. Last previous edition approved in 2019 as C553 – 13 (2019).
DOI: 10.1520/C0553-24.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at www.astm.org/contact. 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
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.
1

C1101/C1101M Test Methods for Classifying the Flexibility
or Rigidity of Mineral Fiber Blanket and Board Insulation
C1104/C1104M Test Method for Determining the Water
Vapor Sorption of Unfaced Mineral Fiber Insulation
C1114 Test Method for Steady-State Thermal Transmission
Properties by Means of the Thin-Heater Apparatus
C1136 Speciﬁcation for Flexible, Low Permeance Vapor
Retarders for Thermal Insulation
C1304 Test Method for Assessing the Odor Emission of
Thermal Insulation Materials
C1335 Test Method for Measuring Non-Fibrous Content of
Man-Made Rock and Slag Mineral Fiber Insulation
C1338 Test Method for Determining Fungi Resistance of
Insulation Materials and Facings
C1423 Guide for Selecting Jacketing Materials for Thermal
Insulation
C1617 Test Method for Quantitative Accelerated Laboratory
Evaluation of Extraction Solutions Containing Ions
Leached from Thermal Insulation on Aqueous Corrosion
of Carbon Steel
C1936 Test Method for Corrosiveness of Mineral-Fiber or
Cellulosic-Fiber Insulation by Comparison to Control
E29 Practice for Using Signiﬁcant Digits in Test Data to
Determine Conformance with Speciﬁcations
E84 Test Method for Surface Burning Characteristics of
Building Materials
2.2 Other Referenced Documents:
CAN/ULC-S102 Standard Method of Test for Surface Burn-
ing Characteristics of Building Materials and Assemblies
3
3. Terminology
3.1 Deﬁnitions—For deﬁnitions used in this speciﬁcation,
refer to Terminology C168.
3.2 Deﬁnitions of Terms Speciﬁc to This Standard:
3.2.1 mean temperature—the sum of the cold surface tem-
perature and the hot surface temperature divided by two.
3.2.2 shot—shot is deﬁned, for the purposes of this
document, as that material which cannot be brushed or me-
chanically shaken through No. 100 (150µm) sieve.
4. Classiﬁcation
4.1 Mineral ﬁber blanket insulation covered by this speci-
ﬁcation shall be classiﬁed into seven types shown in Table 1.
The classiﬁcation is based upon the maximum use temperature
and apparent thermal conductivity of the insulations.
5. Ordering Information
5.1 The type, dimensions, maximum use temperature, and
facing shall be speciﬁed by the purchaser. A product certiﬁca-
tion (if required) shall be speciﬁed in the purchase order.
6. Materials and Manufacture
6.1 Composition—Mineral ﬁber blanket insulation shall be
composed of rock, slag, or glass processed from the molten
state into ﬁbrous form bonded with an organic or inorganic
binder, or both. Asbestos shall not be used as an ingredient or
component part of the product.
6.2 Facings:
6.2.1 The purchaser shall specify whether the insulation
shall be supplied plain or with facing, and if faced, shall
specify the type and its requirements.
NOTE 1—The user of this speciﬁcation is advised that the maximum use
temperature of facing and adhesives may be lower than the maximum use
temperature of the insulation. The user of this speciﬁcation shall ensure
that sufficient insulation thickness is installed so that none of these
accessory items (facings and adhesives) are exposed to temperatures
above their maximum use temperature. Practice C680 can be used to
determine surface temperatures.
6.2.2 The vapor retarder facings shall be in accordance with
speciﬁcation C1136.
6.2.3 Typical facing is as follows (others are available):
3
Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas,
WA 98607-8542, http://www.ul.com.
TABLE 1 Physical Property Requirements
A
Properties Type I Type II Type III Type IV Type V Type VI Type VII
Maximum Use Temperature °F (°C)
See Paragraph 6.2.1 -Note 1
Up to 450
(232)
Up to 450
(232)
Up to 450
(232)
Up to 850
(454)
Up to 1000
(538)
Up to 1000
(538)
Up to 1200
(649)
Apparent Thermal Conductivity
Max. Btu·in./h·ft
2
·°F (W/m·K)
Mean Temperatures
°F (°C)
25 (-4) 0.35 (0.051) 0.30 (0.043) 0.25 (0.036) 0.24 (0.035) 0.30 (0.043) 0.25 (0.036) 0.24 (0.035)
75 (24) 0.36 (0.052) 0.31 (0.045) 0.26 (0.038) 0.25 (0.036) 0.31 (0.045) 0.26 (0.038) 0.25 (0.036)
100 (38) 0.39 (0.056) 0.33 (0.048) 0.28 (0.040) 0.27 (0.039) 0.33 (0.048) 0.28 (0.040) 0.27 (0.039)
200 (93) 0.55 (0.079) 0.44 (0.063) 0.36 (0.052) 0.34 (0.049) 0.44 (0.063) 0.36 (0.052) 0.34 (0.049)
300 (149) 0.76 (0.110) 0.60 (0.087) 0.46 (0.066) 0.43 (0.062) 0.60 (0.087) 0.46 (0.066) 0.43 (0.062)
400 (204) 0.55 (0.079) 0.89 (0.128) 0.60 (0.087) 0.55 (0.079)
500 (260) 0.70 (0.101) 1.10 (0.159) 0.80 (0.115) 0.70 (0.101)
600 (316) 1.50 (0.216) 1.05 (0.151) 0.89 (0.128)
700 (371) 1.13 (0.163)
Water Vapor Sorption
B
% by Weight, 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 Index, max 50 50 50 50 50 50 50
A
Additional physical property requirements, refer to Section 7.
B
It is possible that water sorption characteristics will change after the product is subject to elevated temperatures within normal service conditions.
C553 − 24
2

6.2.3.1 Aluminum foil, reinforced ﬁber glass scrim, and
natural (brown) kraft paper laminate (facing) is known as FRK
or FSK,
6.2.3.2 White kraft paper, reinforced ﬁber glass scrim, and
aluminum foil laminate (facing) is known as ASJ (All Service
Jacket),
6.2.3.3 Aluminum foil, reinforced ﬁber glass scrim, and
plastic ﬁlm (example: polyethylene) laminate (facing) is
known as FSP (Foil - Scrim - Polyethylene),
6.2.3.4 Aluminum foil, and
6.2.3.5 Vinyl ﬁlm.
7. Physical Property Requirements
7.1 For the purposes of determining conformance with these
speciﬁcations, except for surface burning characteristics, all
speciﬁed limits in this standard are absolute limits, as deﬁned
in Practice E29. Refer to Practice E29 for additional informa-
tion.
7.2 The insulation shall be classiﬁed as ﬂexible, when tested
in accordance with 11.7.
7.3 The insulation type shall conform to the following
requirements in Table 1:
7.3.1 Apparent Thermal Conductivity—Test in accordance
with 11.2.
7.3.2 Maximum Use Temperature—Test in accordance with
11.3.
7.3.3 Surface Burning Characteristics—Test in accordance
with 11.4.
7.3.4 Water Vapor Sorption—Test in accordance with 11.8.
7.4 Odor Emission—A detectable odor of objectionable
nature recorded by more than two of the ﬁve panel members
shall constitute rejection of the material when tested in
accordance with 11.5.
7.5 Corrosiveness to Steel—Determine in accordance with
either 11.6.1 or 11.6.2.
7.5.1 When determining corrosiveness according to 11.6.1,
any corrosion resulting from the unfaced insulation in contact
with steel plates shall be judged to be no greater than for
comparative plates in contact with sterile cotton.
7.5.2 When determining corrosiveness according to 11.6.2,
with the mass loss corrosion rate of steel test sample exposed
to the unfaced insulation extract not to exceed that of the
5-ppm chloride solution.
NOTE 2—There are facing adhesives that can cause corrosion to steel
when in contact with water or water vapor and the steel. Currently, there
is no test method available to satisfy every potential corrosion application.
7.6 Non-Fibrous (Shot) Content—The averaged maximum
shot content of rock or slag mineral ﬁber products, Types I
through VII as shown in Table 1, shall not exceed 25 % by
weight as deﬁned in 11.1. Non-ﬁbrous content is not applicable
to glass mineral ﬁber products.
7.7 Maximum Use Temperature—Shall be tested in accor-
dance with 11.3, the insulation with facing shall not warp,
ﬂame or glow during hot surface exposure. No evidence of
melting or ﬁber degradation shall be evident upon post-test
inspection.
7.8 Maximum Exothermic Temperature Rise—Shall be
tested in accordance with 11.3, the internal temperature shall
not at any point in time exceed the hot surface temperature by
more than 200°F (111°C). The 200°F (111°C) criterion applies
during heat-up as well as steady state conditions. Exceeding
this limit shall constitute non-compliance to speciﬁcation and
rejection.
7.9 Stress Corrosion to Austenitic Stainless Steel—When
speciﬁed, shall be tested and evaluated in accordance with
11.9.
7.10 Fungi Resistance—Shall be tested in accordance with
11.10; growth no greater than that on a comparative item
(white birch wood) shall be considered to have passed the test
method criteria.
8. Dimensions and Permissible Variations
8.1 The standard sizes and tolerances of mineral ﬁber
blanket insulation are listed in Table 2. Speciﬁc sizes and
tolerances shall be agreed upon between the purchaser and
supplier.
8.2 The maximum density (determined in accordance with
Test Method C167) speciﬁed in Table 3 for Type(s) I through
Type VII are for weight design purposes only.
9. Workmanship
9.1 The insulation shall have good workmanship and shall
not have defects which adversely affect its installation and
performance qualities.
10. Sampling
10.1 Inspection and qualiﬁcation of the insulation shall be in
accordance with Practice C390, or as otherwise speciﬁed in the
purchase order or contract as agreed upon between the pur-
chaser and the supplier.
TABLE 2 Sizes and Tolerances
A
Mineral Fiber Blanket
Sizes Tolerances
Length
Rolls 50 ft. (15 m)
75 ft. (23 m)
100 ft. (30 m)
150 ft. (48 m)
200 ft. (61 m)
−0 in., excess permitted
Blanket 24 in. (610 mm)
36 in. (914 mm)
48 in. (1219 mm)
96 in. (2438 mm)
±
1
⁄
2
in. (12.7 mm)
Width
Rolls 24 in. (610 mm)
48 in. (1219 mm)
96 in. (2438 mm)
±
1
⁄
2
in. (12.7 mm)
Blanket 12 in. (305 mm)
24 in. (610 mm)
36 in. (914 mm)
48 in. (1219 mm)
±
1
⁄
2
in. (12.7 mm)
Thickness
1 in. (25.4 mm) to 6 in. (152
mm) in
1
⁄
2
in. (12.7 mm)
increments
−
1
⁄
8
in. (3.2 mm) excess
permitted
A
Other sizes available upon request.
C553 − 24
3

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本文档详细解读了ASTM C553 - 24《商业和工业应用矿物纤维毯绝热标准规范》的核心技术要求与适用范围。该标准涵盖了用于商业及工业领域绝热应用的矿物纤维毯材料，包括玻璃纤维、岩棉及矿渣棉等类型，重点规定了毯状绝热材料的尺寸公差、热导率极限、燃烧特性、腐蚀性、吸水率及机械性能等关键指标。通过规范制造工艺与性能测试方法，本文件确保矿物纤维毯在高温管道、锅炉、储罐及建筑围护结构中具有稳定可靠的绝热效果，同时满足安全性与耐久性要求。内容还涉及抽样、检验程序及认证指南，为制造商、工程承包商及质量检验

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