1、Designation:C108098(Reapproved 2014)Standard Specification forAsbestos-Cement Products Other Than Fill For CoolingTowers1This standard is issued under the fixed designation C1080;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the ye
2、ar 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.1.Scope1.1 This specification covers drift eliminators or demisters,louvers,partitioning and casing panels.NOTE1Asbestos-cement
3、pipes are covered in Specifications C296and C428;and asbestos-cement heat exchange fill products are covered inSpecification C1082 for flat fill and Specification C1081 for corrugatedfill.1.2 The following classes of products are covered:ParagraphClassificationsDrift eliminators or demisters4.1Class
4、es 1,2 and 3Louvers4.2Classes 1 and 2Casing panels4.3Classes 1 and 2Asbestos-cement pressurepipes4.4Classes 100,150,and 200Asbestos-cement nonpressureor gravity drainage pipes4.5Classes 1500,2400,3300,4000,and 50001.2.1 Products cured at atmospheric pressure or by auto-claving are covered.1.3 The va
5、lues stated in the SI system are to be regarded asthe standard.The inch-pound units in parentheses are providedfor information only.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 cont
6、act.In addition to other precautions,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.”21.5 The following safety hazards caveat pertain
7、s only to thetest method portion of this specification(Section 5):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 to determine the applicabi
8、lity of regulatorylimitations prior to use.For a specific safety hazard,see 1.4.2.Referenced Documents2.1 ASTM Standards:3C150 Specification for Portland CementC220 Specification for Flat Asbestos-Cement SheetsC221 Specification for Corrugated Asbestos-Cement SheetsC223 Specification for Asbestos-Ce
9、ment SidingC296 Specification for Asbestos-Cement Pressure PipeC428 Specification forAsbestos-Cement Nonpressure SewerPipeC458 Test Method for Organic Fiber Content of Asbestos-Cement ProductsC459 Test Methods for Asbestos-Cement Flat ProductsC1081 Specification for Asbestos-Cement Corrugated FillFo
10、r Use in Cooling TowersC1082 Specification for Asbestos-Cement Flat Sheet forCooling Tower FillD2946 Terminology for Asbestos and AsbestosCementProducts2.2 DIN Standard:DIN 274 Asbestzement-Weilplatten43.Terminology3.1 DefinitionsThe definitions covered in TerminologyD2946 are applicable to this spe
11、cification.3.2 Definitions of Terms Specific to This Standard:3.2.1 autoclaved productsthose that have been treated in asaturated steam atmosphere at between 689 and 1517 kPa(100and 220 psi)for at least 8 h,and that contain portland cementType I as defined in Specification C150 together with silica
12、inthe ratio of 3:2 that can react to form calcium silicate reactionproducts.3.3 pressed productsinclude those that are pressed singly1This specification is under the jurisdiction of ASTM Committee C17 onFiber-Reinforced Cement Products and is the direct responsibility of SubcommitteeC17.03 on Asbest
13、os-Cement Sheet Products and Accessories.Current edition approved Dec.1,2014.Published December 2014.Originallyapproved in 1987.Last previous edition approved in 2008 as C1080 98(2008).DOI:10.1520/C1080-98R14.2Available from The Asbestos Institute,http:/ referenced ASTM standards,visit the ASTM webs
14、ite,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.4Available from Deutsches Institut fr Normunge,Beuth Verlag GmbH,Auslieferung,Post Fach 1107,D-1000 Berlin 30,German
15、y.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 or in stacks interlayered with templates,at a minimum pressureof 12 MPa(1740 psi).4.Classifications4.1 Drift Eliminators or Demisters:4.1.1 ClassAdrift eliminator materials consist of corr
16、ugatedpanels that conform to the following requirements:Nominal thickness6.5 mm(14in.)Pitch177 mm(7 in.)Minimum deflection(in accordance withTest Methods C459)2.2 mm(0.1 in.)Minimum average bendingMoment calculated as in DIN 274:1650 Nm/m(370 ft-lbf/ft)Minimum individual specimen bendingMoment1400 Nm/m(315 ft-lbf/ft)4.1.2 Class B drift eliminator materials consist of corru-gated panels that conform to the following requirements:Nominal thickness5 mm(316in.)Pitch155 mm(7 in.)Deflection,minimum(in