1、Designation:C16715Standard Test Methods forThickness and Density of Blanket or Batt ThermalInsulations1This standard is issued under the fixed designation C167;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision
2、.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 These test methods cover the determination of thick
3、nessand density of flexible,felted,or woven thermal insulatingblankets,rolls,or batts composed of fibrous materials,with orwithout surface covering or reinforcement.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to
4、SI units that are provided for information onlyand are not considered standard.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 determi
5、ne the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal Insulation3.Terminology3.1 DefinitionsTerminology C168 shall be considered asapplicable to the terms used in these test methods.3.2 Definitions of Terms Specifi
6、c to This Standard:3.2.1 packagean individually wrapped group or bag ofbatts or a single roll of thermal insulation material.4.Significance and Use4.1 Proper measurements of thickness and density of blan-ket or batt insulations are essential for determining thermalinsulation properties.For a particu
7、lar batt or blanket product,thickness and density are usually directly related to thermalinsulating value.4.2 These test methods are of significant value in manufac-turing quality control,to ensure that claimed insulation valuesof products are maintained.5.Apparatus5.1 Depth Gauge,of the type shown
8、in Fig.1.The disk shallbe fabricated of a suitable plastic material.The disk shall havea mass of 9.3 6 0.3 grams and shall exert a pressure of 0.4lbf/ft2(20 Pa).The disk shall be 3-in.6 0.08-in.(76 mm 62mm)in diameter.The disk shall be perpendicular to the pin atall times and shall have a friction d
9、evice or thumb grip tosecure the pin unless purposely moved.The pin shall be madeat a maximum18-in.(3 mm)diameter.The pin shall be ofsufficient length for the material to be measured.5.2 Steel rule,graduated in 0.05-in.or 1-mm intervals.5.3 Scales,of sufficient capacity and sensitivity to weigh thet
10、est specimen to an accuracy of 60.5%.6.Sampling6.1 A test sample shall consist of one representative roll orpackage of insulation.6.2 Sampling of PackagesFor packages which contain 20or more batts,five batts shall be selected.For packages whichcontain less than 20 batts,either the three-batt or five
11、-battselection technique may be used.Batts which are folded in halfshall count as two batts for purposes of choosing and employ-ing the selection method.6.2.1 Three-Batt MethodSelect the center batt and thesecond batt in from each end of the package.6.2.2 Five-Batt MethodDivide the package sequentia
12、llyinto five groups of batts as equal in number as possible.Selectthe first batt from each group.Be careful to select one and onlyone batt from the two end batts within the package.6.2.3 Cut batts which are longer than 48 in.to 48 6 0.25 in.(122 6 0.63 cm)in length.6.3 Sampling of Cut RollsFive batt
13、s shall be cut ofroll-width by 48 6 0.25 in.(122 6 0.63 cm)in length.1These test methods are under the jurisdiction of ASTM Committee C16 onThermal Insulation and are the direct responsibility of Subcommittee C16.32 onMechanical Properties.Current edition approved Sept.1,2015.Published October 2015.
14、Originallyapproved in 1941.Last previous edition approved in 2009 as C167 09.DOI:10.1520/C0167-15.2For 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
15、Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.3.1 Cut one batt from the center of the roll,two batts fromthe ends of the roll,and the fourth and fifth from the quarterpoints along the length.See Fig.2.6
16、.3.2 For blankets wider than 24 in.,cut each of the fivebatts 24 6 0.25 in.(61 6 0.63 cm)wide by 48 6 0.25 in.(1226 0.63 cm)long.6.4 Sampling for Full Roll MethodThis method can beused in place of 6.3 when the roll is wider than 24 in.(61 cm)or longer than 50 ft(16.4 m).Prior to unrolling the material,weigh the entire roll to the nearest 0.25 pound(0.11 kg).Twomethods may be used to obtain the full roll weight.The firstmethod removes the insulation product from the packagingprior to weighing.The