ASTM-C1668 Historical Revision Information
Standard Specification for Externally Applied Reflective Insulation Systems on Rigid Duct in Heating, Ventilation, and Air Conditioning (HVAC) Systems

ASTM-C1668 - 2019 EDITION - SUPERSEDED
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Standard Specification for Externally Applied Reflective Insulation Systems on Rigid Duct in Heating, Ventilation, and Air Conditioning (HVAC) Systems
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Scope

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 250°F (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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 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.

Keywords

duct insulation; emittance; HVAC (heating, ventilation, air-conditioning); reflective air spaces; reflective insulation; reflective insulation spacers; reflective insulation system; R-value; thermal resistance;

To find similar documents by ASTM Volume:

04.06 (Thermal Insulation; Building and Environmental Acoustics)

To find similar documents by classification:

91.140.30 (Ventilation and air-conditioning systems Including ventilation ducts Ventilators and air-conditioners, see 23.120)

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Document Number

ASTM-C1668-19

Revision Level

2019 EDITION

Status

Superseded

Modification Type

Revision

Publication Date

April 15, 2019

Document Type

Specification

Page Count

4 pages

Committee Number

C16.21