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ASTM C1126-12a

Historical Revision

Standard Specification for Faced or Unfaced Rigid Cellular Phenolic Thermal Insulation

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1.1 This specification covers faced or unfaced, rigid cellular phenolic thermal insulation. Boards shall be faced or unfaced. Tubular forms covered by this standard shall be unfaced. It does not apply to field expanded cellular phenolic materials.

Note 1If a facer or vapor retarder is to be used for the tubular form, then refer to Practice C921.

1.2 Materials covered by this specification are used as roof insulation; sheathing or rigid board for non-load bearing, building material applications; and pipe insulation for use between −40 and 257°F (−40 and 125°C). Type II and Type III materials with an appropriate vapor retarder covering on the warm surface are used to a lower temperature limit of −290°F (−180°C). (See 7.2.)

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 specification covers closed cell rigid cellular phenolic thermal insulation manufactured using blowing agents with an ozone depletion of 0 (ODP=0).

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.

For specific precautionary statements, see Section 16.


This specification covers faced or unfaced rigid cellular phenolic thermal insulation. Insulations in the form of boards shall be faced or unfaced, while tubular forms shall be unfaced. This specification does not apply to field expanded cellular phenolic materials. Materials covered by this specification are used as roof insulation; sheathing or rigid board for non-load bearing, building material applications; and pipe insulation for use at specified temperature ranges. Type II Grade 1 and Type III Grade 1 materials with an appropriate vapor retarder covering on the warm surface can be used to a lower temperature limit. The thermal insulation shall be of the following types and grades: Type I, for use as roof insulation board and produced without integral vapor retarder facers; Type II, for use as sheathing or rigid panel for non-load bearing applications and produced with integral vapor retarder facers; Type III, for use as pipe insulation and produced without integral vapor retarder facers; Grade 1, closed cell material; and Grade 2, open cell material. Materials shall be sampled, prepared, tested, and conform accordingly to the following physical properties: density; compressive resistance; tensile strength; apparent thermal conductivity; dimension stability; water absorption; water vapor permeance and permeability; flame spread index; and smoke developed index.


SDO ASTM: ASTM International
Document Number C1126
Publication Date Nov. 1, 2012
Language en - English
Page Count 5
Revision Level 12a
Supercedes
Committee C16.22
Publish Date Document Id Type View
Sept. 1, 2024 C1126-24 Revision
April 1, 2019 C1126-19 Revision
Nov. 1, 2018 C1126-18 Revision
May 1, 2015 C1126-15 Revision
April 15, 2014 C1126-14 Revision
Nov. 1, 2013 C1126-13A Revision
May 15, 2013 C1126-13 Revision
Nov. 1, 2012 C1126-12A Revision
May 15, 2012 C1126-12 Revision
April 1, 2011 C1126-11E01 Revision
April 1, 2011 C1126-11 Revision
Nov. 1, 2010 C1126-10A Revision
Sept. 1, 2010 C1126-10 Revision
May 1, 2004 C1126-04 Revision
Nov. 1, 2003 C1126-03 Revision
Nov. 10, 2000 C1126-98 Revision
Nov. 10, 2000 C1126-00 Revision