ASTM C578-07

Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation

SCOPE
1.1 This specification covers the types, physical properties, and dimensions of cellular polystyrene boards with or without facings or coatings made by molding (EPS) or extrusion (XPS) of expandable polystyrene. Products manufactured to this specification are intended for use as thermal insulation for temperatures from -65 to +165°F (-53.9 to +73.9°C). This specification does not apply to laminated products manufactured with any type of rigid board facer including fiberboard, perlite board, gypsum board, or oriented strand board.
1.1.1 For Type XIII only, this specification covers the physical properties, and dimensions of cellular polystyrene intended for use as thermal insulation for temperatures from -297 to +165°F (-183 to +73.9°C).
1.2 Consult the manufacturer for specific recommendations and properties in cryogenic conditions.
1.2.1 This specification does not cover cryogenic properties except for the k-factors for Type XIII in Appendix X1. For Type XIII in specific cryogenic applications, the manufacturer and purchaser shall agree upon the actual temperature limits and physical property requirements in addition to the k-factors in Appendix X1.
1.3 The use of thermal insulation materials covered by this specification may be regulated by building codes that address fire performance. For some end uses, specifiers should also address the effect of moisture. Guidelines regarding these end use considerations are included in Appendix X1.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.
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.

General Information

• Status: Historical
• Publication Date: 30-Apr-2007
• ICS: 83.100 - Cellular materials
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.22 - Organic and Nonhomogeneous Inorganic Thermal Insulations

Relations

• Replaces: ASTM C578-06 - Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
• Effective Date: 01-May-2007
• Replaced By: ASTM C578-08 - Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
• Effective Date: 15-Apr-2008
• Referred By: ASTM E3127-22 - Standard Guide for Specifying Water Vapor Transmission Material Properties of Water-Resistive Barriers and Air Barriers
• Effective Date: 01-May-2007
• Referred By: ASTM E2430/E2430M-19 - Standard Specification for Expanded Polystyrene (“EPS”) Thermal Insulation Boards for Use in Exterior Insulation and Finish Systems (“EIFS”)
• Effective Date: 01-May-2007
• Referred By: ASTM E2925-19a - Standard Specification for Manufactured Polymeric Drainage and Ventilation Materials Used to Provide a Rainscreen Function
• Effective Date: 01-May-2007
• Referred By: ASTM C1303/C1303M-22 - Standard Test Method for Predicting Long-Term Thermal Resistance of Closed-Cell Foam Insulation
• Effective Date: 01-May-2007
• Referred By: ASTM C1696-20 - Standard Guide for Industrial Thermal Insulation Systems
• Effective Date: 01-May-2007
• Referred By: ASTM D5635/D5635M-18(2022) - Standard Test Method for Dynamic Puncture Resistance of Roofing Membrane Specimens
• Effective Date: 01-May-2007
• Referred By: ASTM C1918-21 - Standard Test Method for Water Retention of Rigid Thermal Insulation Materials after Immersion and Exposure to Drying Conditions
• Effective Date: 01-May-2007
• Referred By: ASTM C1774-13(2019) - Standard Guide for Thermal Performance Testing of Cryogenic Insulation Systems
• Effective Date: 01-May-2007
• Referred By: ASTM E2634-18(2022) - Standard Specification for Flat Wall Insulating Concrete Form (ICF) Systems
• Effective Date: 01-May-2007
• Referred By: ASTM C981-20 - Standard Guide for Design of Built-Up Bituminous Membrane Waterproofing Systems for Building Decks
• Effective Date: 01-May-2007
• Referred By: ASTM D5113-97(2021) - Standard Test Method for Determining Adhesive Attack on Rigid Cellular Foam
• Effective Date: 01-May-2007
• Referred By: ASTM D7793-21 - Standard Specification for Insulated Vinyl Siding
• Effective Date: 01-May-2007
• Referred By: ASTM C1063-23 - Standard Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster
• Effective Date: 01-May-2007

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 578 – 07
Standard Specification for
1
Rigid, Cellular Polystyrene Thermal Insulation
This standard is issued under the fixed designation C578; 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 priate safety and health practices and determine the applica-
2 bility of regulatory limitations prior to use.
1.1 Thisspecification coversthetypes,physicalproperties,
and dimensions of cellular polystyrene boards with or without
2. Referenced Documents
facingsorcoatingsmadebymolding(EPS)orextrusion(XPS)
3
2.1 ASTM Standards:
of expandable polystyrene. Products manufactured to this
C165 Test Method for Measuring Compressive Properties
specification are intended for use as thermal insulation for
of Thermal Insulations
temperatures from -65 to +165°F (-53.9 to +73.9°C). This
C168 Terminology Relating to Thermal Insulation
specification does not apply to laminated products manufac-
C177 Test Method for Steady-State Heat Flux Measure-
tured with any type of rigid board facer including fiberboard,
ments and Thermal Transmission Properties by Means of
perlite board, gypsum board, or oriented strand board.
the Guarded-Hot-Plate Apparatus
1.1.1 For Type XIII only, this specification covers the
C203 Test Methods for Breaking Load and Flexural Prop-
physical properties, and dimensions of cellular polystyrene
erties of Block-Type Thermal Insulation
intended for use as thermal insulation for temperatures from
C272 Test Method for WaterAbsorption of Core Materials
−297 to +165°F (−183 to +73.9°C).
for Structural Sandwich Constructions
1.2 Consult the manufacturer for specific recommendations
C303 Test Method for Dimensions and Density of Pre-
and properties in cryogenic conditions.
formed Block and Board−Type Thermal Insulation
1.2.1 This specification does not cover cryogenic properties
C335 Test Method for Steady-State Heat Transfer Proper-
except for the k-factors for Type XIII in Appendix X1. For
ties of Pipe Insulation
Type XIII in specific cryogenic applications, the manufacturer
C390 Practice for Sampling and Acceptance of Thermal
and purchaser shall agree upon the actual temperature limits
Insulation Lots
and physical property requirements in addition to the k-factors
C518 Test Method for Steady-State Thermal Transmission
in Appendix X1.
Properties by Means of the Heat Flow Meter Apparatus
1.3 The use of thermal insulation materials covered by this
C550 Test Method for MeasuringTrueness and Squareness
specification may be regulated by building codes that address
of Rigid Block and Board Thermal Insulation
fire performance. For some end uses, specifiers should also
C870 Practice for Conditioning of Thermal Insulating Ma-
address the effect of moisture. Guidelines regarding these end
terials
use considerations are included in Appendix X1.
C 1045 Practice for Calculating Thermal Transmission
1.4 Thevaluesstatedininch-poundunitsaretoberegarded
Properties Under Steady-State Conditions
as the standard. The values given in parentheses are provided
C1058 Practice for Selecting Temperatures for Evaluating
for information only.
and Reporting Thermal Properties of Thermal Insulation
1.5 This standard does not purport to address all of the
C 1114 TestMethodforSteady-StateThermalTransmission
safety concerns, if any, associated with its use. It is the
Properties by Means of the Thin-Heater Apparatus
responsibility of the user of this standard to establish appro-
C1303 Test Method for Predicting Long-Term Thermal
Resistance of Closed-Cell Foam Insulation
C1363 Test Method for Thermal Performance of Building
1
This specification is under the jurisdiction of ASTM Committee C16 on
Materials and Envelope Assemblies by Means of a Hot
Thermal Insulation and is the direct responsibility of Subcommittee C16.22 on
Box Apparatus
Organic and Nonhomogeneous Inorganic Thermal Insulations.
Current edition approved May 1, 2007. Published May 2007. Originally
approved in 1965. Last previous edition approved in 2006 as C578–06.
2
ThisspecificationissimilartoISO4898-1984,“CellularPlastics–Specification
3
for Rigid Cellular Materials Used in the Thermal Insulation of Buildings,” in title For referenced ASTM standards, visit the ASTM website, www.astm.org, or
only. The scope and technical content are significantly different. contactASTM Customer Service at [e-mail]. ForAnnual Book ofASTM
ISOstandardsareavailablefromANSI,25W.43rdSt.,4thFloor,NewYork,NY Standards volume information, refer to the standard’s Document Summary page on
10036. the ASTM website.
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