1、Designation:C 1488 041Standard Practice forSimulated Aging of Cellulosic Loose-Fill Insulation1This standard is issued under the fixed designation C 1488;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A num
2、ber in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1NOTEUnits of Measure were updated in March 2009.1.Scope1.1 This practic
3、e covers a procedure to simulate the agingprocess of cellulosic loose-fill insulation by subjecting it tocontrolled laboratory conditions of temperature and humidityso that the insulation will be further evaluated,particularly forcritical radiant flux characteristics.1.2 It is not the intent of this
4、 practice to establish agingconditions that represent all possible exposures.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This
5、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 requirements prior to use.2.Referenced Documents2.1
6、ASTM Standards:2C 168 Terminology Relating to Thermal InsulationC 687 Practice for Determination of Thermal Resistance ofLoose-Fill Building InsulationC 739 Specification for Cellulosic Fiber Loose-Fill ThermalInsulationC 870 Practice for Conditioning of Thermal Insulating Ma-terialsC 1485 Test Meth
7、od for Critical Radiant Flux of ExposedAttic Floor Insulation Using an Electric Radiant HeatEnergy SourceE 970 Test Method for Critical Radiant Flux of ExposedAttic Floor Insulation Using a Radiant Heat Energy Source2.2Other Document:NBSIR 84-2917 Environmental Cycling of Cellulosic Ther-mal Insulat
8、ion and Its Influence on Fire Performance3.Terminology3.1 DefinitionsTerminology C 168 shall be considered asapplicable to the terms used in this practice.3.2 Definitions of Terms Specific to This Standard:3.2.1 simulated aging,ncondition resulting from expos-ing a specimen to a controlled cycle of
9、temperature andhumidity conditions.4.Significance and Use4.1 The purpose of this practice is to simulate the agingprocess of cellulosic loose-fill insulation.By identifying anychanges in flame retardant permanency due to the agingprocess,producers can design loose-fill insulation to meet orexceed ma
10、terial specifications throughout the product lifecycle.5.Procedure5.1 Apparatus:5.1.1 Air oven,humidity cabinet or appropriate condition-ing chamber capable of temperature and humidity conditionsallowing for successfully completing the prescribed procedureas defined in 5.2.5.1.2 Material specimens t
11、o be tested after simulated agingshall be prepared and placed in the appropriate test container inaccordance with the applicable material specification or Prac-tice C 687.For specimen to be tested using Test Method E 970or Test Method C 1485,prepare three specimen trays to allowfor repeat testing if
12、 necessary.5.2 ConditioningCondition the specimen in the selectedchamber under the following conditions and chronologicalsequence:75 6 3F(23.4 6 1.7C)and 50 6 3%RH until constant weight is achieved(constant weight is achieved when weight changes less than 1%in 24 h)24 h at 180 6 3F(82.2 6 1.7C)and 9
13、0 6 3%Relative Humidity(RH)1This practice is under the jurisdiction of ASTM Committee C16 on ThermalInsulation and is the direct responsibility of Subcommittee C16.31 on Chemical andPhysical Properties.Current edition approved May 1,2004.Published June 2004.Originallyapproved in 2001.Last previous e
14、dition approved in 2001 as C 1488 01.2For 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.1Copyright ASTM International
15、,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.Copyright by ASTM Intl(all rights reserved);Thu Apr 16 09:22:33 EDT 2009Downloaded/printed byLaurentian University pursuant to License Agreement.No further reproductions authorized.24 h at 75 6 3F(23.4 6 1.7C)and 50 6 3
16、%RH24 h at 180 6 3F(82.2 6 1.7C)and 90 6 3%RH24 h at 75 6 3F(23.4 6 1.7C)and 50 6 3%RH96 h at 140 6 3F(60.0 6 1.7C)Air Oven69.8 6 3.6F(21 6 2C)and 50 6 3%RH until constant weight is achieved6.Report6.1 Report the following information:6.1.1 Conditioning treatment followed,6.1.2 Conditioned sample use;that is,tested in accordancewith Test Method E 970,Specification C 739 or Test MethodC 1485 as applicable,and6.1.3 Any visible changes in the specimen after the condi-tioning treatment,such as a sep
