ASTM_C_302_-_13.pdf

Designation:C30213Standard Test Method forDensity and Dimensions of Preformed Pipe-Covering-TypeThermal Insulation1This standard is issued under the fixed designation C302;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This test method covers the determination of the dimen-sions and density,after conditioning,of preformed pipe insu-lation.1.1.1 ProcedureAis applicable to sections of one-piece pipecovering or to sections of segmental pipe covering that can bejoined together concentrically and measured as one-piece.1.1.2 Procedure B is applicable to segmental pipe coveringwhere each section of material is measured.1.1.3 Procedure C is applicable to sections of one-piece pipecovering,such as soft foam or mineral wool materials,whereit is possible to penetrate the material.1.2 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are forinformation only.1.3 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.2.Referenced Documents2.1 ASTM Standards:2C167 Test Methods for Thickness and Density of Blanket orBatt Thermal InsulationsC168 Terminology Relating to Thermal InsulationC670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsC870 Practice for Conditioning of Thermal Insulating Ma-terialsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3.Terminology3.1 DefinitionsSee Terminology C168.4.Summary of Test Method4.1 The material to be tested is conditioned to constantweight.The density of the pipe insulation is calculated from theconditioned mass and measured dimensions.5.Significance and Use5.1 Density measurements of preformed pipe insulation areuseful in determining compliance of a product with specifica-tion limits and in providing a relative gage of product weights.For any one kind of insulation some important physical andmechanical properties,such as thermal conductivity,heatcapacity,strength,etc.,bear a specific relationship with itsdensity;however,on a density basis,these properties are notdirectly comparable with those for other kinds of material.5.2 The physical dimensions of preformed pipe insulationare important quantities not only for determining the density ofthe pipe insulation but also for determining the conformance tospecifications.The use of multilayer insulations is common,and the dimensions are necessary to ensure proper nesting ofthe layers.6.Apparatus6.1 Flexible Steel Rule,graduated in132-in.or 1.0-mmintervals.6.2 Scale,with sufficient capacity to weigh the specimen towithin 0.01 lb or 5 g.6.3 Pin Probe,as defined in Test Methods C167.6.4 Steel Rule,graduated in132-in.or 1.0-mm intervals.6.5 Stainless Steel Shim Stock,2 in.(75 mm)wide,longerthan the circumference of the pipe insulation,and 0.010 in.(0.25 mm)thick.6.6 Pi Tape,graduated to read a diameter directly to thenearest132in.or 1.0 mm.1This test method is under the jurisdiction ofASTM Committee C16 on ThermalInsulation and is the direct responsibility of Subcommittee C16.32 on MechanicalProperties.Current edition approved Nov.1,2013.Published December 2013.Originallyapproved in 1952.Last previous edition approved in 2007 as C302 95(2007).DOI:10.1520/C0302-13.2For 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 States1 6.7 Pieces of Pipe,on which to install the pipe insulationunder test(only required for Procedure 3).7.Test Specimen7.1 The test specimen shall be of a commercial size.7.2 If sectional pipe segments are to be used for Procedures1 or 3,the sections shall be joined together to form a hollowcylinder.8.Conditioning8.1 Remove any jacket on the specimen unless it is of a typethat would cause disintegration of the specimen upon removal.8.2 Condition the specimen to constant mass in accordancewith Practice C870.9.ProceduresProcedure A9.1 One-Piece Pipe Section:9.1.1 Weigh the conditioned pipe section to the nearest 0.01lb or 5 g.9.1.2 Measure the length of the specimen in six locations,uniformly spaced around its circumference,to the nearest132in.or 1.0 mm.9.1.3 Measure the circumference of the specimen in sixlocations,uniformly spaced along its length,to