ASTM_D_1518_-_14.pdf

Designation:D151814Standard Test Method forThermal Resistance of Batting Systems Using a Hot Plate1This standard is issued under the fixed designation D1518;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.INTRODUCTIONThis standard replaces D1518-85,Thermal Transmittance of Textile Materials.This standardprovides a method for measuring the thermal resistance(insulation)provided by battings andbatting/fabric systems under still air conditions or an air flow condition.Other hot plate standardsF1868 and ISO 11092 provide a method for measuring the thermal resistance and evaporativeresistance of fabrics and fabric systems.The method for measuring fabric insulation in these standardsis comparable to Option 2:Air Velocity Condition in D1518.These standards can be used to comparethe thermal properties of textile materials.Manikin standards F1291 and F2370 can be used tomeasure and compare the thermal resistance and evaporative resistance of clothing systems,respectively.Manikin standard F1720 can be used to measure the insulation provided by sleeping bagsystems.1.Scope1.1 This test method covers the measurement of the thermalresistance,under steady-state conditions,of battings andbatting/fabric systems,and other materials within the limitsspecified in 1.2.It measures the heat transfer from a warm,dry,constant-temperature,horizontal flat-plate up through a layerof the test material to a cool atmosphere and calculates theresistance of the material.The measurements are made understill air conditions(Option#1)or with a horizontal air flowover the specimen(Option#2).1.2 For practical purposes,this test method is limited todeterminations on specimens of battings and layered batting/fabric assemblies having an intrinsic thermal resistance from0.1 to 1.5 Km2/W and thicknesses not in excess of 50 mm.1.3 This test method also provides a method for determiningthe bulk density of the material,the insulation per unitthickness,and the insulation per unit weight.1.4 The values stated in SI units are to be regarded asstandard.1.5 This standard does not purport to address the safetyconcerns associated with its use.It is the responsibility ofwhoever uses this standard to consult and establish appropri-ate safety and health practices and determine the applicabilityof regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD3776 Test Methods for Mass Per Unit Area(Weight)ofFabricE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodF1291 Test Method for Measuring the Thermal Insulation ofClothing Using a Heated ManikinF1494 Terminology Relating to Protective ClothingF1720 Test Method for Measuring Thermal Insulation ofSleeping Bags Using a Heated ManikinF1868 Test Method for Thermal and Evaporative Resistanceof Clothing Materials Using a Sweating Hot PlateF2370 Test Method for Measuring the Evaporative Resis-tance of Clothing Using a Sweating Manikin2.2 ISO Standards:3ISO 11092 TextilesPhysiological EffectsMeasurement ofThermal and Water-Vapour Resistance Under Steady-State Conditions(Sweating Guarded-Hotplate Test)1This test method is under the jurisdiction ofASTM Committee D13 on Textilesand is the direct responsibility of Subcommittee D13.51 on Conditioning and,Chemical and Thermal Properties.Current edition approved July 1,2014.Published August 2014.Originallypublished as D1518 57 T.Last previous edition approved in 2011 as D1518 11a.DOI:10.1520/D1518-14.2For 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.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 ISO 9073-2 TextileTest Methods for NonwovensPart 2:Determination of Thickness3.Terminology3.1 The following terms are relevant to this standard:bulkdensity,clo,thermal resistance,thermal insulation.3.2 For terminology relating to thermal resistance andinsulation see Terminology F1494.3.3 For terminology relating to textiles see TerminologyD123.4.Significance and Use4.1 The thermal resistance of a batting or batting/fabricsystem is of considerable importance in determining its suit-ability for use in fabricating cold weather protective clothing,sleeping bags,and bedding systems.The thermal interchangebetween man and his environment is,however,an extremelycomplicated subject which involves many factors in addition t