1、Designation:C22297(Reapproved 2014)Standard Specification forAsbestos-Cement Roofing Shingles1This standard is issued under the fixed designation C222;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number
2、 in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers asbestos-cement roofingshingles,including accessories,designed to provide theweather-exposed surfaces on roofs of build
3、ings.1.2 Shingles supplied under this specification are of thefollowing types as to shape and method of application:1.2.1 American MethodUniform thickness,generally rect-angular in shape,with straight or irregular edges.They areintended to be laid with a minimum 2-in.(51-mm)head lap andwith no side
4、lap and to provide double coverage.They may bemade either as individual or multiple units to simulate theappearance of individual shingles.1.2.2 Strip ShinglesUniform thickness,various shapesand designs to provide top lap only and shingle coverage underthe butt joints,with the design such that it pr
5、ovides only singlecoverage.1.2.3 Strip ShinglesUniform thickness,various shapesand designs to provide top lap only and shingle coverage underthe butt joints,with the design such that it provides only singlecoverage.1.2.4 Dutch or Scotch Method(Including Ranch Design)Uniform thickness with straight o
6、r irregular edges and de-signed to be laid with a lap at the top and on one side of eachshingle.1.2.4.1 DutchSquare in shape.1.2.4.2 RanchOblong-rectangular in shape,with thegreater dimension horizontal.1.2.5 French or Hexagonal MethodUniform thickness,square in shape,having at least three corners c
7、lipped to givethe desired pattern when the shingles are laid with theirdiagonals perpendicular to the eave of the roof,with their apexsides lapped.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are
8、provided for information onlyand are not considered standard.1.4 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 precautions,when working with asbestos-cement
9、products,minimize the dust that results.For informa-tion on the safe use of chrysotile asbestos,refer to“Safe Use ofChrysotile:A Manual on Preventive and Control Measures.”22.Referenced Documents2.1 ASTM Standards:3C459 Test Methods for Asbestos-Cement Flat Products2.2 Federal Standard:4Fed.Std.No.1
10、23 Marking for Domestic Shipment(CivilianAgencies)2.3 Military Standard:4MIL-STD-129 Marking for Shipment and Storage2.4 Other Documents:Uniform Freight Classification Rule5National Motor Freight Classification Rules63.Materials and Manufacture3.1 Asbestos-cement roofing shingles shall be composed o
11、fa combination of asbestos fiber and portland cement orportland blast-furnace slag cement,and not more than 1 weight%of organic fiber,with or without the addition of curingagents,water-repellent substances,mineral fillers,coatings,pigments,or mineral granules,formed under pressure andcured to meet t
12、he physical requirements of this specification.4.Physical Requirements4.1 All measurements and tests necessary for determiningthe conformity of the asbestos-cement shingles with thisspecification shall be made in accordance with Methods C459.1This specification is under the jurisdiction of ASTM Comm
13、ittee C17 onFiber-Reinforced Cement Products and is the direct responsibility of SubcommitteeC17.03 on Asbestos-Cement Sheet Products and Accessories.Current edition approved Dec.1,2014.Published December 2014.Originallyapproved in 1949.Last previous edition approved in 2008 as C222 97(2008).DOI:10.
14、1520/C0222-97R14.2Available from The Asbestos Institute,http:/ 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.4Availab
15、le from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/dodssp.daps.dla.mil.5Available from the Uniform Classification Commission Room 1106,222 S.Riverside Plaza,Chicago,IL.60606.6Available from National Motor Freight Inc.,1616 P.St.,N.W.,Wa
16、shington,DC20036.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.2 Flexural StrengthThe average breaking load obtainedby loading equally and simultaneously at both one-third pointsof the test span.4.3 DeflectionThe average deflection at mid-span at maxi-mum load obtained by loading equally and simultaneously atboth one-third points of the test span.4.4 Water AbsorptionThe average water absorption shallnot exceed 25 weight%.5.Dimensi
