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ASTM C656-94a(2001)

(Specification)

Standard Specification for Structural Insulating Board, Calcium Silicate

Standard Specification for Structural Insulating Board, Calcium Silicate

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 1700oF (927oC). 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. Such use may result in surface cracking.
1.4 The values stated in inch-pound units are to be regarded as the standard. The SI equivalents of inch-pound units are given in parentheses.
1.5 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.
1.6 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
C16.20 - Homogeneous Inorganic Thermal Insulations
Current Stage
Ref Project

Relations

Replaces
ASTM C656-94a - Standard Specification for Structural Insulating Board, Calcium Silicate
Effective Date
01-Jan-2001
Replaced By
ASTM C656-07 - Standard Specification for Structural Insulating Board, Calcium Silicate
Effective Date
01-Sep-2007
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 C656-94a(2001) - Standard Specification for Structural Insulating Board, Calcium SilicateASTM C656-94a(2001) - Standard Specification for Structural Insulating Board, Calcium Silicate
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ASTM C656-94a(2001) - Standard Specification for Structural Insulating Board, Calcium Silicate
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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 656 – 94a (Reapproved 2001)
Standard Specification for
1
Structural Insulating Board, Calcium Silicate
This standard is issued under the fixed designation C 656; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope C 203 Test Methods for Breaking Load and Flexural Prop-
2
erties of Block-Type Thermal Insulation
1.1 This specification covers structural insulating board for
C 303 Test Method for Density of Preformed Block Type
general thermal insulating, fire-resistive, and marine bulkhead
2
Thermal Insulation
applications.Therigid,preformedstructuralinsulatingboardis
C 356 Test Method for Linear Shrinkage of Preformed
for use at temperatures up to 1700°F (927°C). For specific
High-Temperature Thermal Insulation Subjected to Soak-
applications, the actual temperature limit shall be agreed upon
2
ing Heat
between the manufacturer and the purchaser.
C 390 Criteria for Sampling and Acceptance of Preformed
1.2 The structural insulating board maintains its structural
2
Thermal Insulation Lots
integrity after immersion in water.
C 411 Test Method for Hot-Surface Performance of High-
1.3 Rapid cycling over a wide temperature range is not
2
Temperature Thermal Insulation
recommended. Such use may result in surface cracking.
C 447 Practice for Estimating the Maximum Use Tempera-
1.4 The values stated in inch-pound units are to be regarded
2
ture of Thermal Insulations
as the standard. The SI equivalents of inch-pound units are
C 518 Test Method for Steady-State Thermal Transmission
given in parentheses.
2
Properties by Means of the Heat Flow Meter Apparatus
1.5 This standard does not purport to address all of the
C 1058 Practice for Temperatures for Evaluating and Re-
safety concerns, if any, associated with its use. It is the
2
porting Thermal Properties of Thermal Insulation
responsibility of the user of this standard to establish appro-
D 1037 Test Methods for Evaluating the Properties of
priate safety and health practices and determine the applica-
3
Wood-Base Fiber and Particle Panel Materials
bility of regulatory limitations prior to use.
E 136 Test Method for Behavior of Materials in a Vertical
1.6 When the installation or use of thermal insulation
4
Tube Furnace at 750°C
materials, accessories and systems, may pose safety or health
problems, the manufacturer shall provide the user appropriate
3. Terminology
current information regarding any known problems associated
3.1 Definitions—ThedefinitionsinTerminologyC 168shall
with the recommended use of the company’s products, and
apply to the terms used in this specification.
shall also recommend protective measures to be employed in
their safe utilization.The user shall establish appropriate safety
4. Classification
and health practices and determine the applicability of regula-
4.1 Thestructuralinsulatingboardsshallbeofthefollowing
tory requirements prior to use.
types:
2. Referenced Documents 4.1.1 Type I—Maximum use temperature 1400°F (760°C).
4.1.2 Type II—Maximum use temperature 1700°F (927°C).
2.1 ASTM Standards:
4.2 Thestructuralinsulatingboardsshallbeofthefollowing
C 165 Test Method for Measuring Compressive Properties
2 grades:
of Thermal Insulations
3 3
4.2.1 Grade 1—Typical density 36 lb/ft (577 kg/m ).
C 168 Terminology Relating to Thermal Insulating Materi-
3 3
2 4.2.2 Grade 2—Typical density 46 lb/ft (737 kg/m ).
als
3 3
4.2.3 Grade 3—Typical density 60 lb/ft (961 kg/m ).
C 177 Test Method for Steady-State Heat Flux Measure-
3 3
4.2.4 Grade 4—Typical density 14 lb/ft (224 kg/m ).
ments and Thermal Transmission Properties by Means of
3 3
2
4.2.5 Grade 5—Typical density 18 lb/ft (288 kg/m ).
the Guarded-Hot-Plate Apparatus
3 3
4.2.6 Grade 6—Typical density 28 lb/ft (449 kg/m ).
3 3
4.2.7 Grade 7—Typical density 40 lb/ft (641 kg/m ).
3 3
1
4.2.8 Grade 8—Typical density 60 lb/ft (961 kg/m ).
This specification is under the jurisdiction of Committee C-16 on Thermal
InsulationandisthedirectresponsibilityofSubcommitteeC16.20onHomogeneous
Inorganic Thermal Insulations.
Current edition approved July 15, 1994. Published September 1994. Originally
3
published as C 656 – 70. Last previous edition C 656 – 94. Annual Book of ASTM Standards, Vol 04.10.
2 4
Annual Book of ASTM Standards, Vol 04.06. Annual Book of ASTM Standards, Vol 04.07.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C 656
5. Ordering Information 9. Workmanship, Finish, and Appearance
9.1 Calcium silicate structural insulating boards shall not
5.1 The
...

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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.  
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ASTM C1374-18(2023)(Test Method)
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5.1 This test method was designed to give the manufacturer of loose-fill insulation products a way of determining what the initial installed thickness should be in a horizontal open attic for pneumatic applications.  
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