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ASTM C578-23

Current Revision

Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation

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1.1 This specification2 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 Additional requirements for Types IV and XIII for pipe, tank, and equipment thermal insulation for temperatures from –320 to +165°F (–196 to +73.9°C) are contained in Annex A1.

1.2 The use of thermal insulation materials covered by this specification is potentially regulated by codes that address fire performance. For some end uses, specifiers need to also address the effect of moisture and wind pressure resistance. Guidelines regarding these end use considerations are included in Appendix X1.

1.3 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.

1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 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.


This specification covers the standards for 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 proposed for use as thermal insulation. This specification, however, does not cover laminated products manufactured with any type of rigid board facer including fiberboard, perlite board, gypsum board, or oriented strand board. All thermal insulation shall be of uniform density and shall contain sufficient flame retardants to meet the oxygen index of requirements. They shall also meet the physical requirements such as thermal resistance, compressive resistance, flexural strength, water vapor permeance, water absorption, dimensional stability, and oxygen index specified herein.


SDO ASTM: ASTM International
Document Number C578
Publication Date Sept. 1, 2023
Language en - English
Page Count 8
Revision Level 23
Supercedes
Committee C16.22
Publish Date Document Id Type View
Sept. 1, 2023 C0578-23 Revision
Aug. 1, 2022 C0578-22 Revision
June 1, 2019 C0578-19 Revision
April 15, 2018 C0578-18 Revision
Sept. 1, 2017 C0578-17A Revision
June 1, 2017 C0578-17 Revision
Nov. 15, 2016 C0578-16 Revision
Dec. 15, 2015 C0578-15B Revision
Dec. 1, 2015 C0578-15A Revision
May 1, 2015 C0578-15 Revision
Oct. 15, 2014 C0578-14A Revision
Jan. 1, 2014 C0578-14 Revision
Nov. 1, 2013 C0578-13 Revision
Dec. 15, 2012 C0578-12B Revision
Sept. 1, 2012 C0578-12A Revision
May 1, 2012 C0578-12 Revision
Nov. 15, 2011 C0578-11BE01 Revision
Nov. 15, 2011 C0578-11B Revision
Oct. 1, 2011 C0578-11A Revision
June 1, 2011 C0578-11 Revision
Dec. 1, 2010 C0578-10A Revision
May 1, 2010 C0578-10 Revision
May 1, 2009 C0578-09E01 Revision
May 1, 2009 C0578-09 Revision
Oct. 15, 2008 C0578-08B Revision
Oct. 1, 2008 C0578-08A Revision
April 15, 2008 C0578-08 Revision
May 1, 2007 C0578-07 Revision
May 1, 2006 C0578-06 Revision
Nov. 1, 2005 C0578-05A Revision
June 1, 2005 C0578-05 Revision
Nov. 1, 2004 C0578-04A Revision
May 1, 2004 C0578-04 Revision
Nov. 1, 2003 C0578-03B Revision
July 10, 2003 C0578-03A Revision
May 10, 2003 C0578-03 Revision
Nov. 10, 2001 C0578-95 Revision
Nov. 10, 2001 C0578-01 Revision
Nov. 10, 2001 C0578-00 Revision
Not Available C0578-92 Revision
Not Available C0578-87A Revision