1、Designation:D315/D315M95(Reapproved 2009)1Standard Specification forWoven Asbestos Tape1This standard is issued under the fixed designation D315/D315M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number
2、 in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEUnits information was corrected editorially in March 2010.1.Scope1.1 This specification covers woven asbestos tape having aminimum of 75%asbestos fibe
3、r by weight,excluding theweight of other inorganic reinforcing strands that may bepresent.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independentl
4、y of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 WarningBreathing of asbestos dust is hazardous.Asbestos and asbestos products present demonstrated healthrisks for users and for those with whom they come into contact.In addition to other precauti
5、ons,when working with asbestos-cement products,minimize the dust that results.For informa-tion on the safe use of chrysoltile asbestos,refer to“Safe Useof Chrysotile Asbestos:A Manual on Preventive and ControlMeasures.”21.4 The following safety hazards caveat pertains only to thetest methods,Section
6、 13,described in this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions p
7、rior to use.For specific hazard warning,see 1.3.2.Referenced Documents2.1 ASTM Standards:3D123 Terminology Relating to TextilesD299 Specification for Asbestos YarnsD1118 Test Method for Magnetic Rating of Asbestos Fiberand Asbestos TextilesD1682 Test Method for Breaking Load and Elongation ofTextile
8、 Fabric(Withdrawn 1992)4D1777 Test Method for Thickness of Textile MaterialsD1918 Test Method for Asbestos Content of Asbestos Tex-tilesD2100 Specification for Asbestos Textiles Used for Electri-cal Insulating PurposesD2946 Terminology for Asbestos and AsbestosCementProductsD3774 Test Method for Wid
9、th of Textile FabricD3775 Test Method for Warp(End)and Filling(Pick)Countof Woven Fabrics3.Terminology3.1 For definitions of other textile terms used in thisspecification,refer to Terminology D123.For asbestos terms,refer to Terminology D2946.3.2 asbestos textile,nthe hydrous magnesium silicateserpe
10、ntine mineral designated as chrysotile and having theempirical formula Mg3Si2O5(OH)4.4.Classification4.1 ClassesThe classes of asbestos tapes are based on thenature of the yarns from which they are woven.4.1.1 Class ATape constructed of asbestos yarns contain-ing no reinforcing standards.4.1.2 Class
11、 BTape constructed of asbestos yarns contain-ing wire reinforcement.4.1.3 Class CTape constructed of asbestos yarns contain-ing organic reinforcing strands.4.1.4 Class DTape constructed of asbestos yarns contain-ing nonmetallic inorganic reinforcing strands.4.1.5 Class ETape constructed of two or mo
12、re of the yarnsused in tape classes A through D.4.2 GradesThe grades of asbestos tape are based on thepercentage of asbestos content by mass as stated in Table 1.1This specification is under the jurisdiction of ASTM Committee C17 onFiber-Reinforced Cement Productsand is the direct responsibility of
13、SubcommitteeC17.03 on Asbestos-Cement Sheet Products and Accessories.Current edition approved Nov.1,2009.Published March 2010.Originallyapproved in 1929.Last previous edition approved in 2004 as D315 95(2004)1.DOI:10.1520/D0315_D0315M-95R09E01.2Available from The Asbestos Institute,http:/ referenced
14、 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.4The last approved version of this historical standard is referenced onwww.astm.o
15、rg.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.3 Types:4.3.1 Asbestos tubing as made for the electrical industry isfurnished in three types,classified on the basis of magneticrating determined by Test Method D1118,which serve toiden
16、tify performance limits.Type II Magnetic Rating 0.75 maximumType IV Magnetic Rating 2.00 maximumType VI Magnetic Rating 4.00 maximum4.3.2 Type II is intended only for special applications wherethe asbestos is of primary importance as electrical insulationused on magnet wire and when used primarily as a dielectric.4.3.3 Type IV is intended for use where the asbestos is ofsecondary importance as electrical insulation and where it isapplied in combination with other materials of comparablyhigher di