ASTM_C_1859_-_17.pdf

Designation:C185917Standard Practice forDetermination of Thermal Resistance of Loose-Fill BuildingInsulation in Side Wall Applications1This standard is issued under the fixed designation C1859;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice presents a laboratory guide to determinethe thermal resistance of loose-fill building insulations installedin side walls behind netting at mean temperatures between 10and 35C(14 to 95F).1.2 This practice applies to a wide variety of loose-fillthermal insulation products including fibrous glass,rock/slagwool,or cellulosic fiber materials and any other insulationmaterial that can be installed pneumatically.It does not applyto products that change their character after installation eitherby chemical reaction or the application of binders,adhesives orother materials that are not used in the sample preparationdescribed in this practice,nor does it consider the effects ofstructures,containments,facings,or air films.1.3 Since this practice is designed for reproducible productcomparison,it measures the thermal resistance of an insulationmaterial which has been preconditioned to a relatively drystate.Consideration of changes of thermal performance of ahygroscopic insulation by sorption of water is beyond thescope of this practice.1.4 The sample preparation techniques outlined in thispractice do not cover the characterization of loose-fill materialsintended for open applications.1.5 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC1045 Practice for Calculating Thermal Transmission Prop-erties Under Steady-State ConditionsC1114 Test Method for Steady-State Thermal TransmissionProperties by Means of the Thin-Heater ApparatusC1363 Test Method for Thermal Performance of BuildingMaterials and Envelope Assemblies by Means of a HotBox Apparatus3.Terminology3.1 Unless otherwise stated,the terms and definitions foundin Terminology C168 are applicable herein.4.Significance and Use4.1 The thermal resistance,R,of an insulation is used todescribe its thermal performance.4.2 The thermal resistance of an insulation is related to thedensity and thickness of the insulation.It is desirable to obtaintest data on thermal resistances at thicknesses and densitiesrelated to the end uses of the product.4.3 In normal use,the thickness of these products rangefrom less than 100 mm(4 in.)to greater than 150 mm(6 in.).Installed densities depend upon the product type,the installedthickness,the installation equipment used,the installationtechniques,and the geometry of the insulated space.4.4 Loose-fill insulations provide coverage information us-ing densities selected by manufacturers to represent the product1This practice is under the jurisdiction of ASTM Committee C16 on ThermalInsulation and is the direct responsibility of Subcommittee C16.30 on ThermalMeasurement.Current edition approved May 1,2017.Published May 2017.DOI:10.1520/C1859-17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 installed densities.Generally,it is necessary to know theproduct thermal performance at a representative density.4.5 When applicable specifications or codes do not specifythe no