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ASTM C892-00

(Specification)

Standard Specification for High-Temperature Fiber Blanket Thermal Insulation

Standard Specification for High-Temperature Fiber Blanket Thermal Insulation

SCOPE
1.1 This specification covers high-temperature fiber blanket thermal insulation for use at various temperatures from 1350oF (732oC) up to 3000oF (1649oC), except when used in high-temperature furnaces.
1.2 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 and health practices and determine the applicability of regulatory limitations prior to use.
1.2 When the installation or use of thermal insulation materials, accessories, and systems may pose safety or health problems, the manufacturers shall provide the user with appropriate current information regarding any known problems associated with the recommended use of the company's products, and shall also recommend protective measures to be employed in their safe utilization. The user shall establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units which are provided for information only and are not considered standard.

General Information

Status
Historical
Publication Date
09-Oct-2000
ICS
91.100.60 - Thermal and sound insulating materials
Technical Committee
C16 - Thermal Insulation
Drafting Committee
C16.23 - Blanket and Loose Fill Insulation
Current Stage
Ref Project

Relations

Replaced By
ASTM C892-05 - Standard Specification for High-Temperature Fiber Blanket Thermal Insulation
Effective Date
01-Nov-2005
Referred By
ASTM C1695-22 - Standard Specification for Fabrication of Flexible Removable and Reusable Blanket Insulation for Hot Service
Effective Date
10-Oct-2000
Referred By
ASTM F683-23 - Standard Practice for Selection and Application of Thermal Insulation for Piping and Machinery
Effective Date
10-Oct-2000

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ASTM C892-00 - Standard Specification for High-Temperature Fiber Blanket Thermal InsulationASTM C892-00 - Standard Specification for High-Temperature Fiber Blanket Thermal Insulation
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ASTM C892-00 - Standard Specification for High-Temperature Fiber Blanket Thermal Insulation
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C 892 – 00
Standard Specification for
1
High-Temperature Fiber Blanket Thermal Insulation
This standard is issued under the fixed designation C892; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope C201 Test Method for Thermal Conductivity of Refracto-
2
ries
1.1 This specification covers high-temperature fiber blanket
3
C209 Test Methods for Cellulosic Fiber Insulating Board
thermalinsulationforuseatvarioustemperaturesfrom1350°F
C356 Test Method for Linear Shrinkage of Preformed
(732°C) up to 3000°F (1649°C), except when used in high-
High-Temperature Thermal Insulation Subjected to Soak-
temperature furnaces.
3
ing Heat
1.2 This standard does not purport to address all of the
C390 Criteria for Sampling and Acceptance of Preformed
safety concerns, if any, associated with its use. It is the
3
Thermal Insulation Lots
responsibility of the user of this standard to establish appro-
C1058 Practice for Selecting Temperatures for Evaluating
priate safety and health practices and determine the applica-
3
and Reporting Thermal Properties of Thermal Insulation
bility of regulatory limitations prior to use.
C1335 TestMethodforMeasuringNon-FibrousContentof
1.3 When the installation or use of thermal insulation
3
Man-Made Rock and Slag Mineral Fiber Insulation
materials, accessories, and systems may pose safety or health
problems, the manufacturers shall provide the user with appro-
3. Terminology
priate current information regarding any known problems
3.1 Definitions—Terminology C71 andTerminology C168
associated with the recommended use of the company’s
shall be considered as applying to the terms used in this
products, and shall also recommend protective measures to be
standard.
employed in their safe utilization. The user shall establish
3.2 Definitions of Terms Specific to This Standard:
appropriate safety and health practices and determine the
3.2.1 fibers—thefibersshallberefractoryoxides,processed
applicability of regulatory requirements prior to use.
from a molten state into fibrous form.
1.4 The values stated in inch-pound units are to be regarded
3.2.2 high-temperature fiber thermal insulation— a thermal
asthestandard.Thevaluesgiveninparenthesesaremathemati-
insulation, varying in flexibility, composed of refractory inor-
cal conversions to SI units which are provided for information
ganic fibers, with or without binder added, and furnished in
only and are not considered standard.
either flat sheets or rolls.
2. Referenced Documents
4. Classification
2.1 ASTM Standards:
2 4.1 The general-type product governed by this specification
C71 Terminology Relating to Refractories
is blanket or batt composed of inorganic refractory fibers.
C167 Test Methods for Thickness and Density of Blanket
3 4.2 Types—The product is separated into types based upon
or Batt Thermal Insulation
temperatures of use:
C168 Terminology Relating to Thermal Insulating Materi-
3
Type Temperature of use, °F (°C), maximum
als
I 1350 (732)
C177 Test Method for Steady-State Heat Flux Measure-
II 1600 (871)
ments and Thermal Transmission Properties by Means of III 2400 (1316)
3
IV 2600 (1427)
the Guarded Hot Plate Apparatus
V 3000 (1649)
4.3 Grades—The product is separated into grades based
upon its density:
1
This specification is under the jurisdiction of ASTM Committee C16 on
3 3
Grade Density, lb/ft (kg/m ), nominal
Thermal Insulation and is the direct responsibility of Subcommittee C16.23 on
3 3 (48)
Blanket and Loose Fill Insulation.
4 4 (64)
Current edition approved Oct. 10, 2000. Published January 2001. Originally
6 6 (96)
published as C892–78. Last previous edition C892–93.
2 8 8 (128)
Annual Book of ASTM Standards, Vol 15.01.
3 12 12 (192)
Annual Book of ASTM Standards, Vol 04.06.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C892–00
TABLE 2 Physical and Mechanical Requirements
5. Ordering Information
Properties Requirements
5.1 High-temperature fiber blanket thermal insulation is
Non-fibrous content (shot), maximum, % (by weight) 30
normally purchased on the basis of brand name, grade, length,
Linear shrinkage, maximum, % (at maximum use 5
width, thickness, and total square footage as specified in the
temperature)
2
purchase order. Tensile strength, minimum, lb/in (KPa)
Grade 3 1.0 (6.9)
5.2 The type and grade for the intended service shall be as
Grade 4 1.5 (10.3)
specified by the user with the assistance of the supplier where
Grade 6 2.0 (13.8)
desirable. Grade 8 3.0 (20.7)
Grade 12 5.0 (34.5)
5.3 Ins
...

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4.1 Inorganic fibrous thermal insulation can contain varying amounts of non-fibrous material. Non-fibrous material does not contribute to the insulating value of the insulation and therefore a procedure for determining that amount is desirable. Several specifications refer to shot content and percent (%) retained on various screen sizes determined by this test method.
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5.1 An inherent characteristic of some alloys of austenitic stainless steel is their tendency to crack at stress points when exposed to certain corrosive environments. The mechanisms of ESCC are complex and not completely understood but are apparently related to certain metallurgical properties. Chloride and fluoride ions have the potential to induce stress corrosion cracking in the absence of inhibiting ions.3  
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This specification covers structural insulating board for general thermal insulating, fire-resistive, and marine bulkhead applications. The structural insulating boards shall be of the following types and grades: Types I and II and Grades 1; 2; 3; 4; 5; 6; 7; and 8. Calcium silicate structural insulating board shall be composed of hydrated calcium silicate with natural or man-made fibers or fillers, or a combination thereof. The following test methods shall be performed: dimensions and density; flexural strength; compressive strength; screw holding strength; apparent thermal conductivity; combustion characteristics; and maximum use temperatures.
SCOPE
1.1 This specification covers structural insulating board for general thermal insulating, fire-resistive, and marine bulkhead applications. The rigid, preformed structural insulating board is for use at temperatures up to 1700°F (927°C). For specific applications, the actual temperature limit shall be agreed upon between the manufacturer and the purchaser.  
1.2 The structural insulating board maintains its structural integrity after immersion in water.  
1.3 Rapid cycling over a wide temperature range is not recommended because of potential damage due to thermal shock.  
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ASTM C165-23(Test Method)
Standard Test Method for Measuring Compressive Properties of Thermal Insulations

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4.1 In providing Procedures A and B, it is recognized that different types of thermal insulation will exhibit significantly different behavior under compressive load. Data must usually be obtained from a complete load-deformation curve, and the useful working range normally corresponds to only a portion of the curve. The user is cautioned against use of the product in the range beyond which the product is permanently damaged or properties are adversely affected.  
4.2 Load-deformation curves provide useful data for research and development, quality control, specification acceptance or rejection, and for other special purposes. Standard loading rates shall not be used arbitrarily for all purposes; the effects of impact, creep, fatigue, and repeated cycling must be considered. All load-deformation data shall be reviewed carefully for applicability prior to acceptance for use in engineering designs differing widely in load, load application rate, and material dimensions involved.
SCOPE
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1.1.1 Procedure A covers thermal insulations having an approximate straight-line portion of a load-deformation curve, with or without an identifiable yield point as shown in Figs. 1 and 2. Such behavior is typical of most rigid board or block-type insulations.
FIG. 1 Procedure A—Straight Line Portion with Definite Yield Point
FIG. 2 Procedure A—Straight Line Portion but no Definite Yield Point  
1.1.2 Procedure B covers thermal insulations that become increasingly more stiff as load is increased, as shown in Fig. 3. Such behavior is typical of fibrous batt and blanket insulations that have been compressed previously to at least the same deformation by compression packaging or mechanical softening.
FIG. 3 Procedure B—Increasing Stiffness  
1.2 It is recognized that the classification of materials under Procedures A and B shall not hold in all cases. For example, some batt or blanket materials that have not been compression packaged will exhibit behavior more typical of Procedure A for their first loadings. Also, some higher density fibrous insulation boards that have been precompressed will exhibit load-deformation curves more typical of Procedure B. There will also be thermal insulations with load-deformation curves that follow none of the three types shown here; that is, curves with no straight-line portion, curves with compaction areas, and curves that change from negative to positive slope.  
1.3 This test method does not cover reflective or loose fill insulations.  
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1.6 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.

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