1.1 This test method covers determination of the installed thickness of pneumatically applied loose-fill building insulations prior to settling by simulating an open attic with horizontal blown applications.
1.2 This test method is a laboratory procedure for use by manufacturers of loose-fill insulation for product design, label development, and quality control testing. The apparatus used produces installed thickness results at a given mass/unit area.
1.3 This test method is not the same as the design density procedures described in Test Methods C520 or Specifications C739 or C764.
1.4 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.
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 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.
ASTM C1374-18(2023) Referenced Document
ASTM C168 Standard Terminology Relating to Thermal Insulation
ASTM C520 Standard Test Methods for Density of Granular Loose Fill Insulations
ASTM C739 Standard Specification for Cellulose Fiber (Wood-Base) Loose-Fill Thermal Insulation
ASTM C764 Standard Specification for Mineral Fiber Loose-Fill Thermal Insulation
ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM C1374-18(2023) history
2023ASTM C1374-18(2023) Standard Test Method for Determination of Installed Thickness of Pneumatically Applied Loose-Fill Building Insulation
2018ASTM C1374-18 Standard Test Method for Determination of Installed Thickness of Pneumatically Applied Loose-Fill Building Insulation
2014ASTM C1374-14 Standard Test Method for Determination of Installed Thickness of Pneumatically Applied Loose-Fill Building Insulation
2003ASTM C1374-03(2009) Standard Test Method for Determination of Installed Thickness of Pneumatically Applied Loose-Fill Building Insulation
2003ASTM C1374-03 Standard Test Method for Determination of Installed Thickness of Pneumatically Applied Loose-Fill Building Insulation
1997ASTM C1374-97 Standard Test Method for Determination of Installed Thickness of Pneumatically Applied Loose-Fill Building Insulation