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ASTM C1668-12

Historical Revision

Standard Specification for Externally Applied Reflective Insulation Systems on Rigid Duct in Heating, Ventilation, and Air Conditioning (HVAC) Systems

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1.1 This specification covers the requirements and physical properties of reflective insulation systems applied externally to Rigid Heating, Ventilation, and Air Conditioning (HVAC) duct systems operating at or below 250ºF (121.1 °C). These insulation systems consist of one or more low-emittance surfaces, such as metallic foil or metallic deposits, mounted on substrates to produce reflective air spaces. Reflective insulation systems derive thermal performance from surfaces with an emittance of no greater than 0.1 facing enclosed air spaces.

1.2 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.

1.3 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.


SDO ASTM: ASTM International
Document Number C1668
Publication Date May 1, 2012
Language en - English
Page Count 4
Revision Level 12
Supercedes
Committee C16.21
Publish Date Document Id Type View
March 1, 2024 C1668-24 Revision
May 1, 2020 C1668-20 Revision
April 15, 2019 C1668-19 Revision
Nov. 1, 2013 C1668-13A Revision
May 1, 2013 C1668-13 Revision
May 1, 2012 C1668-12 Revision
March 1, 2010 C1668-10 Revision
May 15, 2009 C1668-09 Revision