1、Designation:C68617Standard Test Method forParting Strength of Mineral Fiber Batt-and Blanket-TypeInsulation1This standard is issued under the fixed designation C686;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last rev
2、ision.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 test method covers evaluation of strength in tensionon mineral fiber batt-and blanket-type insulation products.It isuseful for
3、 determining the comparative tensile properties ofthese products,specimens of which cannot be held by the moreconventional clamp-type grips.This is a quality controlmethod,and the results shall not be used for design purposes.It is not suitable for board-type products.1.2 The values stated in inch-p
4、ound 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.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is therespo
5、nsibility 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.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established
6、 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:2C167 Test Methods for Thickness and Density of Blanket orBatt Thermal Ins
7、ulationsE171 Practice for Conditioning and Testing Flexible BarrierPackagingE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3.Significance and Use3.1 Tensile strength is a fundamental property associatedwith mineral fiber manufacture since it is influe
8、nced by thetype of fiber,the deposition of fiber,the type and the amount ofbonding agent,and the method of curing the resin to form abonded insulation product.The test is an indication of productintegrity and the ability of the product to be successfullyhandled and applied in the field.4.Apparatus4.
9、1 Constant Rate of Traverse Tension Test Unit of 50-lbf(223-N)capacity calibrated in increments of 0.1 lbf(0.4 N)andhaving a moving head speed of 12 in.(305 mm)/min orequivalent(see Fig.1).4.2 Post-Type Grips with 1-in.(25.4-mm)diameter rods(see Fig.2).4.3 Die for cutting specimens(see Fig.3).The O-
10、ringspecimen dimensions are 3 by 4.75 in.(76 by 120.6 mm)inoutside diameter,and 1 by 2.75 in.(25 by 69.8 mm)in insidediameter(see Fig.4).4.4 Balance to weigh to an accuracy of 0.01 g.5.Test Specimen5.1 The test specimen shall consist of the entire O-ring cutfrom the full thickness of the product to
11、be tested.5.2 Specimens shall not be cut from a product that varies inthickness 65%from normal when tested in accordance withTest Method C167.5.3 No specimen shall be tested that exhibits any obviousdamage in the insulation or that shows delamination within theinsulation thickness.6.Conditioning6.1
12、Condition the specimens for 1 h in a room maintained atatmospheric conditions of 73.4 6 1.8F(23 6 1C)and 50 62%relative humidity in accordance with Specification E171.7.Procedure7.1 Weigh each specimen to the nearest 0.01 g and recordthe weight.1This test method is under the jurisdiction ofASTM Comm
13、ittee C16 on ThermalInsulation and is the direct responsibility of Subcommittee C16.32 on MechanicalProperties.Current edition approved May 1,2017.Published May 2017.Originallyapproved in 1971.Last previous edition approved in 2011 as C686 90(2011)1.DOI:10.1520/C0686-17.2For referenced ASTM standard
14、s,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.
15、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 Barri
16、ers to Trade(TBT)Committee.1 7.2 Attach the post-type grips to the tension test unit andalign the grips in the vertical plane.7.3 Adjust the speed of the moving head to 12 in.(305mm)/min.7.4 Set the stops of the moving head until the grips areapproximately14in.(6.3 mm)apart in the starting position.7.5 Place the specimen on the post-type grip(higher densityside first if it is evident that such exists)so that both posts arewithin the oblong hole of the specimen.The high density sideof the specime
