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ASTM C208-95(2001)

(Specification)

Standard Specification for Cellulosic Fiber Insulating Board

Standard Specification for Cellulosic Fiber Insulating Board

SCOPE
1.1 This specification covers the principal cellulosic fiber insulating board types, grades, and sizes. Requirements are specified for composition, construction, physical properties, tolerances, sampling procedures, and test methods.
1.2 The values stated in inch-pound units are to be regarded as the standard. The metric values given in parentheses are provided for information only.
1.3 When the installation or use of thermal insulation materials, accessories, and systems may pose safety or health problems, the manufacturer shall provide the user 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.

General Information

Status
Historical
Publication Date
31-Dec-2000
ICS
91.100.60 - Thermal and sound insulating materials
Technical Committee
C16 - Thermal Insulation
Drafting Committee
C16.22 - Organic and Nonhomogeneous Inorganic Thermal Insulations
Current Stage
Ref Project

Relations

Replaces
ASTM C208-95 - Standard Specification for Cellulosic Fiber Insulating Board
Effective Date
01-Jan-2001
Replaced By
ASTM C208-08 - Standard Specification for Cellulosic Fiber Insulating Board
Effective Date
01-Aug-2008
Referred By
ASTM C846-16(2021) - Standard Practice for Application of Cellulosic Fiber Insulating Board for Wall Sheathing
Effective Date
01-Jan-2001
Referred By
ASTM C209-20 - Standard Test Methods for Cellulosic Fiber Insulating Board
Effective Date
01-Jan-2001
Referred By
ASTM C1289-23 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board
Effective Date
01-Jan-2001
Referred By
ASTM C1558-19 - Standard Guide for Development of Standard Data Records for Computerization of Thermal Transmission Test Data for Thermal Insulation
Effective Date
01-Jan-2001

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ASTM C208-95(2001) - Standard Specification for Cellulosic Fiber Insulating BoardASTM C208-95(2001) - Standard Specification for Cellulosic Fiber Insulating Board
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ASTM C208-95(2001) - Standard Specification for Cellulosic Fiber Insulating Board
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Standards Content (Sample)

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 208 – 95 (Reapproved 2001)
Standard Specification for
1
Cellulosic Fiber Insulating Board
This standard is issued under the fixed designation C208; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4900.1 Rev-1 U.S. Dept. of Housing and Urban Develop-
ment Minimum Property Standards, One and Two Family
1.1 This specification covers the principal cellulosic fiber
5
Dwellings
insulating board types, grades, and sizes. Requirements are
specified for composition, construction, physical properties,
3. Terminology
tolerances, sampling procedures, and test methods.
3.1 For definitions of terms used in this specification, see
1.2 The values stated in inch-pound units are to be regarded
Terminology C168 and Definitions D1554.
as the standard. The metric values given in parentheses are
3.2 Definitions of Terms Specific to This Standard:
provided for information only.
3.2.1 cellulosic fiber insulating board—a fibrous-felted,
1.3 When the installation or use of thermal insulation
homogeneous panel made from ligno-cellulosic fibers (usually
materials, accessories, and systems may pose safety or health
3
wood or cane) and having a density of less than 31 lb/ft (497
problems, the manufacturer shall provide the user appropriate
3 3 3
kg/m ) but more than 10 lb/ft (160 kg/m ).
current information regarding any known problems associated
3.2.1.1 Discussion—Cellulosic fiber insulating board is
withtherecommendeduseofthecompany’sproductsandshall
characterized by an integral bond which is produced by
also recommend protective measures to be employed in their
interfelting of the fibers, but which has not been consolidated
safe utilization. The user shall establish appropriate safety and
under heat and pressure as a separate stage in manufacture.
health practices and determine the applicability of regulatory
Other materials may be added during manufacture to improve
requirements prior to use.
certain properties.
2. Referenced Documents
4. Classification
2.1 ASTM Standards:
2
4.1 Insulatingboardcoveredbythisspecificationconsistsof
C168 Terminology Relating to Thermal Insulation
2 six types:
C209 Test Methods for Cellulosic Fiber Insulating Board
4.1.1 Type I—Sound deadening board, for use in wall
C390 Criteria for Sampling and Acceptance of Preformed
2 assemblies to control sound transmissions.
Thermal Insulation Lots
4.1.2 Type II—Roof insulation board, for use in various
C846 Practice for Application of Cellulosic Fiber Insulat-
2 roofing systems.
ing Board for Wall Sheathing
4.1.2.1 Grade 1—Primarily for use under built up roof
D1037 Test Methods for Evaluating Properties of Wood-
3 systems.
Base Fiber and Particle Panel Materials
4.1.2.2 Grade 2—Primarilyforuseundersingle-plyroofing
D1554 Definitions of Terms Relating to Wood-Base Fiber
3 systems.
and Particle Panel Materials
4.1.3 Type III—Ceiling tiles and panels.
D 2164 Methods of Testing Structural Insulating Roof
3 4.1.3.1 Grade 1—Nonacoustical, for use as decorative wall
Deck
and ceiling coverings.
E72 Methods of Conducting Strength Tests of Panels for
4
4.1.3.2 Grade 2—Acoustical, for use as decorative, sound
Building Construction
absorbing wall and ceiling coverings.
2.2 Federal Standard:
4.1.4 Type IV—Wall Sheathing.
4.1.4.1 Grade 1—Regular, for use as wall sheathing in
1
frame construction.
This specification is under the jurisdiction of ASTM Committee C-16 on
Thermal Insulation and is the direct responsibility of Subcommittee C16.22 on 4.1.4.2 Grade 2—Structural, for use as wall sheathing in
Organic and Nonhomogeneous Inorganic Thermal Insulations.
frameconstruction.WheninstalledinaccordancewithPractice
Current edition approved Feb. 15, 1995. Published April 1995. Originally
published as C208–46T. Last previous edition C208–94.
2
Annual Book of ASTM Standards, Vol 04.06.
3 5
Annual Book of ASTM Standards, Vol 04.10. Available from the U.S. Department of Housing and Urban Development,
4
Annual Book of ASTM Standards, Vol 04.11. Construction Standards Division, HUD Building, Washington, DC 20410.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C 208 – 95 (2001)
C846, structural wall sheathing provides adequate racking free of cracks, lumps, excessive departure from planeness, or
resistance for use as exterior wall bracing. other defects that affect performance or appearance.
4.1.5 Type V—Backer board, for use behind exterior finish 8.2 Surface Finish—The
...

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SCOPE
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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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SCOPE
1.1 This specification covers the classification and performance of flexible aerogel thermal insulation. This will cover the range of continuous exposure operating temperatures from –321°F (–196°C) up to 1200°F (649°C).  
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ABSTRACT
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.  
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.  
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ASTM C165-23(Test Method)
Standard Test Method for Measuring Compressive Properties of Thermal Insulations

SIGNIFICANCE AND USE
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
1.1 This test method covers two procedures for determining the compressive resistance of thermal insulations.  
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.  
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.  
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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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